Aluminum Die Castings

16th July, 2025

Author: HULK Metal

What are Aluminum Die Castings?

Aluminum die castings mean the parts made of pure aluminum or aluminum alloys obtained by die casting. Generally, aluminum or aluminum alloys heated to a liquid state are pressed into a metal cavity by a die casting machine, and aluminum parts or aluminum alloy parts of various shapes and sizes are obtained after cooling. These parts are usually called aluminum die casting parts.

Advantages of Aluminum Die Castings:

Aluminum die castings have some advantages that other castings cannot match.

1. Aluminum die castings are widely favored by users, Because of their beautiful appearance, lightweight, corrosion resistance, and other advantages.

2. The density of aluminum die castings is lower than that of cast iron and cast steel, while the specific strength is higher. Therefore, using aluminum die castings under the same load conditions can reduce the structure's weight.

3. Aluminum die castings have a good surface gloss and corrosion resistance in the atmosphere and fresh water.

4. Pure aluminum die castings have good corrosion resistance in oxidizing acid media such as nitric and acetic acid.

5. Pure aluminum and aluminum alloy die castings have good thermal conductivity. They are also suitable for heat exchange devices used in chemical production and parts that require good thermal conductivity in power machineries, such as cylinder heads and pistons of internal combustion engines made of aluminum alloy.

6. Due to the high latent heat of solidification of aluminum alloy, under the same weight conditions, the solidification process of aluminum liquid lasts much longer than that of cast steel and cast iron, and the fluidity is good, which is conducive to casting thin-walled and complex castings.

Application of Aluminum Die Casting:

The aluminum die casting process can be used to produce auto parts, auto engine parts, engine cylinders, valve rocker arms, valve bearings, power parts, motor end caps, reducer housings, construction parts, and guardrail accessories, wheel hubs, etc.

Aluminum die castings have been widely used in automobile manufacturing, internal combustion engine production, motorcycle manufacturing, motor manufacturing, transmission machinery manufacturing, precision instruments, landscaping, power construction, and other industries.

Process of Aluminum Die Castings:

1. Die-casting machine commissioning

Commissioning the die-casting machine ensures that it can work stably and continuously.

2. Die-casting mold design and manufacture

According to the drawings of the aluminum die casting, the 3D model of the die is designed using the die design software, the die steel is used as the material, and the machining center is used to complete the manufacture of the die casting die.

3. Die-casting mold design and manufacture

According to the drawings of the aluminum die casting, design the 3D model of the mold using the mold design software, use the die steel as the material, and use the machining center to complete the manufacture of the die casting mold.

4. Die-casting die installation

Install the finished metal mold on the die-casting machine and complete the commissioning work.

5. Paint formulation and application

In the die-casting process, to avoid welding the aluminum die-casting part and the die-casting mold, reduce the frictional resistance of the casting ejection and avoid the excessive heating of the die-casting mold. Requirements for coatings:

1) At high temperatures, it has good lubricity;

2) Low volatilization point, the diluent can volatilize quickly at 100-150℃;

3) No corrosive effect on die-casting molds and die-castings;

4) The performance is stable in the air, and the diluent should not be excessively volatilized and thickened;

5) No harmful gas release at high temperatures;

6) No fouling will occur on the surface of the die-casting cavity.

6. Mold cleaning

The cleaning of the mold needs to be completed before starting processing. To ensure the cleanliness of the mold.

7. Mold preheating and coating

Before Using die-casting molds, should preheat them to a particular temperature. Usually, using gas, blowtorch, electrical or induction heating.

In continuous production, the temperature of die casting molds tends to increase, especially for die casting high melting point alloys, which rise rapidly. In addition to making the liquid metal sticky, The higher temperature will cause the casting to cool slowly and the grains coarse. So when the die-casting mold's temperature is too high, shall adopt cooling measures. Usually perform cooling with compressed air, water, or chemical media.

8. Die casting mold clamping

9. Aluminum Alloy smelting and heat preservation

The die-cast alloy is heated to a predetermined temperature and kept stable.

10. Die casting injection

The pouring temperature refers to the average temperature of the liquid aluminum alloy when it enters the cavity from the pressing chamber. Because it is inconvenient to measure the temperature of the liquid metal in the pressing chamber, it is usually shown by the temperature in the holding furnace.

The too high pouring temperature will cause the die casting to shrink seriously. Aluminum die castings are prone to cracks, large grains and can also cause stickiness; too low pouring temperature can easily cause cold insulation, surface patterns, and insufficient pouring of die castings. Therefore, we should consider the pouring temperature, the pressure, the temperature of the die casting mold, and the filling speed at the same time.

The time it takes for the liquid metal to fill the cavity from entering the cavity is called the filling time. The length of filling time depends on the casting volume's size and complexity. Large and simple aluminum die castings will have relatively long filling times; complex and thin-walled castings will have shorter filling times. The filling time is closely related to the cross-sectional area of the gate, the width and thickness of the gate, and these three parameters, must be determined correctly.

11. Inserts preparation

Inserts can improve local mechanical properties on castings, such as strength, hardness, wear resistance, etc.

Some parts of aluminum die castings are too complex for the core to come out and require the aid of inserts.

12. Pressure holding

The duration from the liquid aluminum alloy filling the cavity to the complete solidification of the inner gate is called the pressure holding time. The length of the holding time depends on the material and wall thickness of the aluminum die casting.

13. Mold opening and core pulling

We should complete the opening and take out the aluminum die casting at an accurate time after the pressure holding. The time from the pressure injection to the opening mold is called the opening time. We need to accurately control the opening time. Because if the opening time is too short, the strength of the aluminum dies casting will be much lower, which may cause deformation when it is ejected and dropped from the mold; if the opening time is too long, the temperature of the aluminum die casting will decrease, lead to high shrinkage rate, and the resistance of core pulling and ejection of castings will increase accordingly. The general calculation method of opening time is: every 1 mm increase in the wall thickness of the casting takes 3 seconds and then adjusts after the on-machine test.

14. Clean up (refurbishment)

Casting cleaning is hard work, and its workload is often 10 to 15 times that of die casting. Therefore, it is important to realize the mechanization and automation of the casting cleaning work to increase the die casting machine productivity and output.

15. Casting infiltration and shot penning

The surface cleaning of aluminum die castings adopt ordinary polygonal rollers and vibration buried cleaning devices. For simple and small batches of small parts, often use the polygonal cleaning roller; for decorations with high surface requirements, often use the cloth or leather polishing wheel to complete the polishing; for mass-produced die-casting parts, often use the screw-shell vibration cleaning machine.

The cleaned aluminum die castings can also be surface treated and impregnated according to users' requirements to increase luster, prevent corrosion and improve air tightness.

16. Final inspection

Ensure that the shape, size, corrosion resistance, mechanical properties, and other parameters of the die casting meet the requirements.

Summary

HULK Metal began in the early 21st century, focusing on providing professional and higher standard metal manufacturing services for each customer, and has accumulated rich experience. We have a complete supply chain system that can provide you with comprehensive services such as production, quality inspection, packaging, warehousing, freight consulting, etc. so that every customer can enjoy easier procurement. We will spare no effort to continuously build a more complete ecosystem to provide you with more excellent metal manufacturing services.

HULK Metal not only has an experienced production team, quality inspection team, and technical team, but also has a modern factory, advanced production equipment, and quality inspection equipment. We can produce higher standard products for you. We also integrate most of the factories in China with the same strength as ours to provide you with production services at the standard of our factories. Your order can be completed faster with guaranteed quality.

HULK Metal. Your trusted metal fabrication service provider.

Related Services of Aluminum Die Casting

Explore a range of services that support aluminum die casting, including mold design, precision machining, surface finishing, and assembly. From anodizing and powder coating to CNC post-processing, these services enhance the strength, appearance, and performance of cast components. Whether for prototype development or large-scale production, our related services ensure every aluminum die casting project achieves accuracy, efficiency, and lasting quality.

Custom Metal Parts of Aluminum Die Casting

Discover custom aluminum die-cast parts engineered to meet diverse industry needs. Examples include automotive housings, LED light fixtures, heat sinks, gearbox covers, and electronic enclosures. Each part is cast with precision to achieve tight tolerances, smooth surfaces, and high structural integrity. Our capabilities allow complex shapes, thin walls, and intricate details, delivering components that are lightweight yet strong. Explore how aluminum die-cast parts can improve product performance, reduce weight, and enhance design flexibility.

Precast Concrete Accessories

Key Clamp Fittings

Custom Metal Parts

Wire Rope Cable Puller Gripper

Precast Concrete Accessories

Precast concrete accessories are designed for precast concrete elements lifting, transport, fixing and connection. It includes those buried in concrete to provide lifting points, such as lifting anchors, sockets, spread anchors, and so on; those used to connect lifting points and lifting equipment, such as lifting clutch, hooks, loops, hoist rings; those used to connect other elements or fix other objects, such as wire rope box, cast in channel and others.

HULK Metal has been supplying precast concrete accessories from China to customers around the world since 2006. We have integrated a complete supply chain and built an experienced team to provide higher quality products and services. We can currently provide CE certified precast concrete lifting anchors, sockets (inserts), spread anchors, clutch, hooks, hoist rings, cast in channel, wire rope box, recess former, and others. We will strictly implement ISO 9001 standards for every order you make and provide QA services to make your purchase worry-free.

Lifting Anchors

Lifting & Fixing Sockets (Inserts)

Spread Anchors

Lifting Clutch

Lifting Hooks

Recess Former

Precast Concrete Magnets

Other Accessories

Lifting Anchors

Precast concrete lifting anchors are accessories designed specifically for the lifting of precast concrete elements. It includes lifting pin anchors (as know as dog bone anchors, spherical head lifting anchors), double head lifting anchors, utility anchors, etc. It needs to be embedded in precast concrete elements, fixed with a recess former, and a recess is created in the fixed position to accommodate the lifting clutch. They can be used in many elements such as: concrete trenches, culverts, stairs, pipes, panels, etc.

Foot Anchors

Our foot anchors come in a variety of sizes to suit different precast concrete lifting needs, with precise dimensions tailored for optimal performance. Each anchor's Working Load Limit (WLL) is clearly specified to ensure maximum safety during handling and lifting. HULK Metal's parameters guarantee reliable strength and compatibility, meeting industry standards to support secure and efficient lifting operations on any construction site.
Lifting Pin Anchor

Here we show all the load groups, dimensions, surface treatments and other information of Lifting Pin Anchor that we can currently provide. If you want to know more, please leave us a message or download our product catalog. We look forward to your ordering to us. We will develop a perfect solution and the most competitive price for you.
Lifting Pin (Dog Bone) Anchors

Our lifting pin (dog bone) anchors are available in various sizes, load capacities, and surface treatments to suit different precast concrete applications. Manufactured from high-quality steel, each anchor meets strict dimensional and performance standards. Detailed specifications, including length, diameter, and rated load, ensure compatibility with standard lifting systems. We can also customize parameters based on your drawings or project requirements, providing optimal lifting solutions that improve safety, efficiency, and durability in your construction or precast production processes.
Lifting Eye Anchor

HULK Metal offers precast concrete lifting eye anchors in a range of sizes and load capacities to meet the needs of different types of projects. Material grade, usually high-strength steel like 20Mn2 or Q345, lengths between 50 and 300 mm, and safe working loads up to 32 tons are important considerations. Corrosion resistance is increased by surface treatments like electric galvanizing and hot dip. In demanding environments, these anchors perform better than standard options thanks to their threaded ends for secure embedding and eye diameters optimized for clutch compatibility.
Double Head Lifting Anchor

The parameters of precast concrete double head lifting pin anchors include detailed dimensions and Working Load Limits (WLL) to ensure correct selection for your project. HULK Metal provides precise specifications for each size, helping you match anchors to specific lifting requirements. All parameters comply with CE and ISO 9001 standards, ensuring consistency, safety, and compatibility with related lifting systems. Accurate data supports safe handling and optimal performance in precast concrete construction.
Spherical Head Lifting Anchors

HULK Metal can provide CE-certified spherical head lifting anchors. We have an ISO 9001-certified forging factory to produce your order. A full range of molds can produce a full range of products. A well-equipped quality control center can conduct factory, mechanical properties, chemical properties, and other indicators. Each product can be tested 3 times safety equal to the tensile test. You are welcome to contact us at any time to visit the factory and place an order. We will provide you with more competitive quotations and quality services.
Lifting Pins for Precast Concrete

The table here shows the materials, certifications, surface treatments, specific parameters and corresponding CODEs of Lifting Pins for Precast Concrete that we can provide. You can get them through the download button above.

Lifting & Fixing Sockets (Inserts)

Lifting & Fixing Sockets, also commonly called Lifting & Fixing Inserts, are accessories designed for the lifting and anchoring of precast concrete elements. They are pre-buried in specific locations in the concrete to provide lifting points or connection holes for lifting or connecting other elements. With the development of the quick-install concrete industry, many types have been derived. It generally consists of two parts: a sleeve part and a stress transfer part. Depending on the different stress transfer parts, dozens of products can be derived.

Short Wavy Tail Anchor

The Short Wavy Tail Anchor comes in a range of sizes and SWL capacities to suit various precast concrete applications. Available in materials including stainless steel, Q345, Q235, and 20#, it features raw, electro-galvanized, or hot-dip galvanized finishes. With a minimum safety factor of 3 and CE/ISO 9001 certification, each anchor ensures reliable performance. Detailed parameters include thread size, height, diameter, embedment depth, and DS, providing precise load handling for secure lifting.
Wavy Tail Anchor

We currently offer two types of wavy tail anchors: short and long. The difference between them is the distance from the extrusion point to the wavy tail. You can see their specific sizes in the table below. You can directly tell us the specific model and quantity. We will provide a better quotation.
Precast Lifting Thread Insert

Here are the models, thread types, load groups and other information of various types of Precast Lifting Thread Inserts. You can click to jump to the corresponding product details to learn more. You can also contact us directly to get a quote.
Flat End Lifting Insert

This table shows our Flat End Lifting Insert material, thread standard, SWL, surface treatment, unit weight, certification, safety factor and other information. You can click the button below the product to download the product brochure for more details.
Solid Rod Lifting Insert

Here is the parameter table of Solid Rod Lifting Insert, which shows the Solid Rod Lifting Insert size, surface treatment, certification, material, SWL, CODE and other information we can provide. If you need to know more, you can contact us at any time to obtain it.
Solid Rod Lifting & Fixing Socket

HULK Metal's solid rod lifting and fixing sockets come in various sizes to match different load requirements. Built with materials like stainless steel or Q235, they undergo rigorous testing for safety. The table below outlines key dimensions and safe working loads, helping you select the right fit for your precast concrete needs.
Combi Lifting Socket

Our combi lifting socket range includes various sizes and working load limits (WLL) to match diverse lifting requirements. Each model is precisely machined for accurate dimensions and optimal performance. Detailed parameters cover length, thread size, anchor dimensions, and rated load capacity, ensuring you can select the right product for your precast concrete lifting application. Specifications comply with CE and ISO 9001 standards for safety and reliability in every lifting task.
Flat Fixing Socket with Cross Pin

Our Flat End Fixing Socket with Cross Pin is available in multiple sizes and Safe Working Load (SWL) capacities to match diverse lifting needs. Each dimension is carefully engineered for optimal performance and verified through strict quality inspections. Whether for heavy or standard precast components, you can rely on precise specifications, consistent manufacturing tolerances, and a proven safety factor to deliver dependable results in every construction project.
Fixing Socket with Bent End

Explore the detailed parameters of our fixing sockets with Bent ends, including various sizes and working load limits (WLL). These specifications help you select the right option for your precast concrete needs. Our products come in multiple diameters and lengths, with WLL ratings that ensure safer handling than basic alternatives. This overview highlights how our sockets deliver stronger performance across construction projects, backed by precise engineering for better integration and longevity.
Tubular Lifting Insert

Here, you can learn about the material, surface treatment, thread type, SWL and unit weight of the Tubular Lifting Insert we can supply. The price needs to consider the specific requirements such as model, quantity, packaging and transportation. You can contact us for more information.
Long Wavy Lifting Insert

Here you can see the material, surface treatment, SWL range, thread standard and range, CODE and surface treatment of Long Wavy Lifting Insert. You can click on the information above to download these contents for your better viewing.
Solid Rod Fixing Sockets with Crossbar

HULK Metal provides detailed parameters for Solid Rod Fixing Sockets with Crossbar, including safe working loads, dimensions, and material options. These specs ensure compatibility with precast concrete applications, from thread diameters to lengths, all backed by certifications for reliable performance in bulk projects.
Flat End Lifting Socket

Our parameter table provides detailed specifications for each flat end lifting socket, including dimensions, safe working load (SWL), and thread size. This information ensures you can select the correct lifting insert for your precast concrete application. HULK Metal's precision manufacturing guarantees that all parameters strictly meet CE and ISO standards, delivering optimal compatibility, superior performance, and enhanced safety for lifting operations across diverse construction and infrastructure projects.
Tubular Lifting Sockets

Our tubular lifting sockets are available in multiple sizes and safe working load options to suit various precast concrete lifting needs. Made from stainless steel or quality carbon steel, they feature precise threads, a safety factor above 3 times, and durable surface treatments. CE and ISO 9001 certified, each socket is manufactured and inspected to ensure consistent dimensions, load capacity, and performance, giving you confidence in every lifting application.
Long Wavy Lifting Socket

Our Long Wavy Lifting Socket range offers multiple load capacities, from 0.5 tons to 8.0 tons, to suit diverse precast lifting needs. Made from high-quality stainless steel, Q345, Q235, or 20# steel, each socket undergoes precision threading, strict tolerance checks, and optional surface treatments like electro-galvanizing or hot-dip galvanizing. With a minimum 3× safety factor and CE/ISO 9001 certification, these anchors deliver strength, durability, and reliable performance for demanding construction projects.
Crown Foot Lifting Anchor

Crown Foot Anchors come in various sizes to suit diverse precast needs, with thread diameters ranging from M12 to M30 and lengths from 60mm to 155mm. Working Load Limits (WLL) start at 0.5 tons for smaller units and reach up to 3 tons for heavier applications, always maintaining a safety factor exceeding three times the rated capacity. These parameters allow versatile use in thin panels and slabs, where edge distances and panel thicknesses dictate optimal placement for maximum stability. Our team customizes dimensions based on your drawings, ensuring precise fits that enhance project safety and speed.
Flat Plate Lifting Socket

HULK Metal's flat plate lifting sockets come in a range of sizes tailored for various safe working loads, from 0.5 to 12.5 tons. Key parameters include thread diameters, heights, and base dimensions, all crafted from materials like stainless steel or Q235 for optimal strength. Surface treatments such as hot-dip galvanizing enhance corrosion resistance, while certifications ensure compliance. This table outlines specifications to help select the right socket for your precast concrete needs, balancing compactness with high performance.
Flat End Fixing Socket

Explore the key parameters of our flat end fixing sockets, including various sizes and working load limits (WLL) tailored to your needs. These details ensure compatibility with your precast concrete applications, from small panels to larger structures, providing stronger holds and better performance under stress.

Spread Anchors

Precast concrete spread anchors are made of high-performance alloy steel plates and are designed to be embedded in precast concrete elements to provide accessories for lifting points. Its international standard is CE certification. It needs to undergo strict tensile performance sampling inspection—using a tensile force of 3 times or even higher safety factor until it is broken. There are many types of it, and when using it, you need to consider the shape, thickness, lifting point location, weight and other factors of the precast concrete elements.

Plate Spread Anchor

HULK Metal's plate spread anchors come in standard sizes tailored for different load capacities, from 2.5 to 10 tons SWL. Materials include 20Mn2, Q345D, or customizable stainless steel, with surface treatments like raw, electro-galvanized, or hot-dip galvanized for enhanced durability. Each anchor boasts a safety factor of at least three, backed by ISO9001 and CE certifications. The table below details dimensions and codes, helping you select the right fit for your precast concrete needs. Contact our technical team for custom variations based on your requirements.
Unilateral Erection Anchor

Our unilateral erection anchors come in various sizes to suit different safe working loads (SWL) from 2.5 to 26 tons, accommodating diverse precast concrete needs. Made from robust materials such as 20Mn2, Q345D, CM490, or stainless steel, they offer customizable options with surface treatments like electro-galvanized or hot-dip galvanized. Each anchor maintains a safety factor of at least 3, backed by ISO9001 and CE certifications. The table below details dimensions, ensuring precise fits for columns, beams, and wall panels in bulk production runs.
Flat Foot Anchor

This section outlines key specifications for flat foot anchors, including safe working loads and dimensions to guide selection for precast projects. HULK Metal offers models from 2.5 to 26 tons SWL, crafted from durable steels with options for galvanized finishes. These parameters ensure compatibility with diverse concrete elements, supporting safer and more efficient lifts. Bulk buyers benefit from our ability to customize based on exact needs, backed by certifications that guarantee performance.
Erection Anchor

HULK Metal's erection anchors come in various sizes with safe working loads from 2.5 to 10 tons, made from materials like 20Mn2 or customizable options. These parameters ensure compatibility with diverse precast concrete elements, supported by our production expertise for bulk customization.
Spread Anchor

Our spread anchors are available in multiple sizes and safe working load capacities to meet different lifting demands. Manufactured from high-grade steels such as 20Mn2, Q345D, CM490, or stainless steel, they can be customized with suitable surface treatments. Each spread anchor is CE and ISO9001 certified with a minimum safety factor of three, ensuring consistent performance, durability, and compliance with international standards for precast concrete lifting applications.
Two Hole Anchor

HULK Metal's two hole anchors are available in various sizes and safe working loads (SWL) to suit diverse precast concrete applications. Crafted from high-strength materials like 20Mn2, Q345D, or stainless steel, they ensure durability and safety. With surface treatment options such as electro-galvanizing or hot-dip galvanizing, our anchors meet strict CE and ISO 9001 standards, guaranteeing reliable performance for bulk buyers across global projects.

Lifting Clutch

HULK Metal has been engaged in the production and sales of precast concrete lifting clutch since 2006, and has accumulated rich experience. We have integrated a complete supply chain and formed a professional team to provide better products and services. Our lifting clutch has passed the CE certification and can pass the destructive test with a 5-fold safety factor. Here you can learn about our product range, production capacity, and service capabilities.

Precast Concrete Lifting Lugs

Our Precast Concrete Lifting Lugs are available in multiple sizes and working load limits (SWL) to meet diverse precast concrete lifting needs. Manufactured from Q345D, Q355D, CM490, or G30CrMoV steel, they feature electro-galvanized surfaces and a minimum safety factor of 5. With CE and ISO 9001 certifications, each lifting lug ensures consistent strength, durability, and reliable performance, making them suitable for lifting and handling various precast concrete elements efficiently.
Dog Bone Lifting Eye

The Dog Bone Lifting Eye is available in multiple sizes and load capacities to meet different project requirements. Each unit is manufactured from high-quality steel, electro-galvanized for enhanced corrosion resistance, and tested to a safety factor of five times. With CE and ISO9001 certification, our lifting eyes ensure consistent performance. Bulk buyers can choose from a wide range of SWL options, making them ideal for various precast concrete lifting applications.
Lifting Clutch For Pin Anchor

Our lifting clutch for pin anchor is engineered from high-grade materials such as Q345D, Q355D, CM490, and G30CrMoV, with customizable options available. Each clutch is electro-galvanized for enhanced corrosion resistance and tested to meet a minimum 5:1 safety factor. Certified by CE and ISO9001, the clutches are available in different safe working load (SWL) capacities, ensuring reliable lifting performance across varied construction and precast concrete projects.
Dog Bone Lifting Eye With Chain

We show you the material, test index, certification, size and CODE of Dog Bone Lifting Eye With Chain in a table. You can find what you want more clearly. If you need more parameters or inquire about the price, please contact us.
Ring Clutch

The parameter section of the Ring Clutch provides details on available sizes and Safe Working Load (SWL). Each model is clearly defined to match different precast lifting requirements. With strict load group markings and compliance with CE standards, customers can easily select the right clutch for their projects. These specifications help ensure that lifting operations remain safe, efficient, and fully aligned with international construction safety standards.
Precast Concrete Lifting Eyes

We can provide precast concrete lifting eyes made of high performance alloy steel with CE certification. The following table details some important parameters such as Safety Factor, Certification, Materials, SWL, etc. You can contact us at any time to get a quotation for the corresponding specifications.
Combination Ring Clutch

The parameters of the Combination Ring Clutch provide clear details on dimensions, working load limits, and load groups, allowing customers to select the most suitable model for their project. Each clutch is designed with a five times safety factor to guarantee safety during lifting operations. By comparing specifications, buyers can quickly match the correct clutch with their spread anchors, ensuring efficiency, precision, and reliability in precast concrete handling.

Lifting Hooks

HULK Metal offers a wide range of G60, G70, and G80 strength lifting hooks with a well-established supply chain. We have an advanced forging factory and integrated assembly line production. The quality of lifting hooks will be more guaranteed, and we can provide electro-galvanizing, hot-dip galvanizing, and powder coating—three surface treatments. We strictly implement ISO 9001 standard management to provide you with higher quality products and services. You can contact us at any time to visit the factory to understand our production capacity and service capabilities, and then hand over the order to us after you are satisfied.

Clevis Slip Hooks

We are able to provide clevis slip hooks in all sizes in the form. In addition to that, we also provide OEM service, and the engineers will make a perfect solution according to your drawings and give a more reasonable quotation.
Clevis Grab Hooks

Here are the specifications of the Clevis Grab Hooks we can offer. The table contains information such as CODE, Size, WLL, etc. You can tell us directly about CODE and quantity, and we will give you a more satisfactory quote.
Eye Grab Hooks

HULK Metal currently offers eye grab hooks from 1/4"to 3/4". The following table shows the CODE and the corresponding specifications. You can choose the appropriate CODE according to the size of the chain. We support OEM services and can develop a complete solution based on the drawings or samples you send us, and give a more reasonable quotation.
Eye Slip Hooks

HULK Metal can provide eye slip hooks in 7 sizes from 1/4" to 3/4" in both carbon steel and alloy steel, and in three surface treatments: electro-galvanized, hot-dip galvanized and powder sprayed. The table provides detailed product parameters, you can view them, or click the button on the upper right to download the catalog to learn more.

Recess Former

Recess formers are used to place lifting anchors, spread anchors, and other accessories that need to be pre-buried in precast concrete elements. The recess they leave is for the lifting clutch to connect with lifting anchors or spread anchors. We offer a full range of standard recess formers and OEM services for special requirements.

Rubber Recess Former

The parameter table of Rubber Recess Former clearly shows available sizes and load capacities. Buyers can easily choose suitable types from 1.5 to 32 tons, ensuring compatibility with Pin Anchor and Spread Anchor lifting systems.
Lifting Pin Anchor Recess Former

Our lifting pin anchor recess former come in multiple configurations to match specific load demands in precast concrete projects. The table below details dimensions, weights, and safe working loads, helping you select the right model. Made from customizable rubber, these ensure compatibility with various anchors. We prioritize precision in sizing for better integration, reducing risks during lifting operations compared to generic options.
Precast Magnetic Formers

Precast Magnetic Formers have various styles, including fixed Precast Frame, Lifting Anchors Sockets and Spread Anchors. You can download our product catalog.
Spread Anchor Rubber Recess Former

The parameters of Spread Anchor Rubber Recess Former cover multiple working load limits from 2.5 tons to 26 tons, providing flexibility for different precast concrete projects. Each type is designed with precise dimensions to match specific spread anchors, ensuring stable positioning and reliable lifting performance. Made from durable rubber with customizable options, these recess formers meet ISO9001 and CE standards, making them suitable for various construction and lifting applications.

Precast Concrete Magnets

Precast concrete magnets are one of HULK Metal's main products. They are recognized by customers for their high quality and reasonable price. Precast concrete magnets use high-performance and durable NdFeB alloy magnets. Advanced technology effectively improves production efficiency and reduces costs while ensuring its quality. We provide quality assurance services. You can purchase them with confidence.

Magnetic Recess Former Supplier In China

As one of the excellent magnetic recess former suppliers in China, HULK Metal has advanced factories and a perfect supply chain to provide you with high-quality products and services. We can provide magnetic recess former with load group of 1.3, 2.5, 5, and 10 tons. Advanced quality inspection equipment and professional quality inspection personnel can ensure that each batch of goods meets higher qualification rates and quality requirements. We provide quality assurance services, you can rest assured to give us your order.
Precast Lifting Fixing Insert Socket Magnet

HULK Metal can provide CE-certified magnets for precast lifting and fixing inserts or sockets. Our factory has advanced machining equipment, laser cutting machines, and assembly lines, which can more efficiently complete CE-certified precast lifting fixing insert socket magnet with a higher pass rate. Our supply chain can help you save more costs through consistent management from top to bottom. Quality assurance service is our confidence in quality and our guarantee to you. You can rest assured to give us your order.
Electrical Box Fixed Magnets

The parameters of Electrical Box Fixed Magnets include material, shape, size, and surface treatment options, allowing customization for different project requirements. The body is made of high-quality rubber, while NdFeB magnets provide strong holding power. With ISO 9001 and CE certifications, every batch meets international quality standards. Square, round, and other shapes are available. Surface treatment options like electro-galvanizing ensure enhanced durability in demanding precast concrete applications.
Shuttering Magnets for Formwork

The parameters of Shuttering Magnets for Formwork include magnet strength, fixing body material, and surface treatment options. These Formwork Magnets are available in stainless steel, carbon steel, or alloy steel, ensuring durability and adaptability. Certificates such as ISO 9001 and CE guarantee consistent quality.
Embedded Corrugated Pipe Fixed Magnet

The Embedded Corrugated Pipe Fixed Magnet comes in different sizes, materials, and magnetic strengths to fit various corrugated pipe dimensions used in precast concrete. Each product is manufactured with strict quality control to ensure precision and durability. Customers can request customized designs, magnetic force adjustments, and base sizes according to their project needs. With flexible OEM/ODM support, HULK Metal delivers magnets that perform reliably and meet international standards for different concrete applications.

Other Accessories

HULK Metal also specializes in OEM services for cast-in-channel, T-bolts, wire rope boxes, stone support brackets, and other accessories. Cast in channel can be made of cold-rolled steel, hot-rolled steel, and stainless steel. T bolts are made of carbon steel, alloy steel, and stainless steel. Our wire rope box only has one wire rope, and stone support brackets only accept OEM services. We will develop a perfect solution according to your requirements to ensure that the delivery time, quality, and price can meet your requirements.

Cast In Channel T Bolts

The parameters of Cast In Channel T Bolts cover standard and customized dimensions to meet diverse structural needs. Each bolt is designed with high load-bearing capacity and tested Safe Working Load (SWL) values to guarantee safety. Available in various thread sizes, head dimensions, and finishes, our T Bolts are suitable for different cast-in channel systems. Technical support ensures buyers receive accurate specifications for seamless installation and long-term performance.
Halfen Anchor Channel

HULK Metal's HALFEN Anchor Channels come in a range of dimensions and safe working loads (SWL) to suit diverse precast concrete applications. Each channel is precisely manufactured with cold-rolled or hot-rolled steel, ensuring structural integrity. SWL values are clearly specified to meet project requirements, and all products undergo strict quality control. This allows bulk buyers to select the exact channel type with confidence in performance and safety for their concrete projects.
Precast Wall Connection Wire Loop Box

The parameter section presents the detailed specifications of our precast wall connection wire loop boxes, including available sizes, breaking loads, and safe working loads. These values allow engineers and contractors to choose the most suitable type for their structural requirements. With CE and ISO 9001 certification, every wire loop box is manufactured under strict quality control, ensuring dependable performance and safety for different precast wall connection projects.
Cast in Channel

The parameters of our Cast in Channel cover a wide range of hot-rolled and cold-rolled types to suit different load requirements. Each specification ensures safe working loads, precise geometry, and compatibility with matching T-bolts. With certified strength and accurate dimensions, our HALFEN Channel products guarantee safer installation and reliable performance in precast concrete structures, giving engineers and contractors greater flexibility and confidence in large-scale projects.
Concrete Screw Bolts

Concrete screw bolts are available in different diameters, lengths, head styles, and surface treatments. At HULK Metal, we support customization according to drawings and requirements. Our galvanized concrete bolts come with electro-galvanizing and hot-dip galvanizing finishes, ensuring long service life. We provide a full range of dimensions to meet different project applications, from precast construction to heavy-duty industrial installations. Bulk buyers can benefit from efficient production and consistent quality.
Cast-in Lifting Loops

The parameters of HULK Metal's cast in loops include a range of diameters, lengths, and working load limits (WLL) to suit different precast concrete lifting needs. Each loop is manufactured to precise dimensional tolerances and tested for tensile strength exceeding three times its rated capacity. With clear specifications, you can select the right cast in lifting loop to ensure optimal performance, safety, and efficiency for your specific construction application.
Lifting Loops

Our lifting loops come in a wide range of sizes and safe working loads to suit various precast concrete lifting needs. Each is crafted from durable alloy or carbon steel and finished with electro-galvanizing for superior corrosion resistance. With a safety factor of four or more, precision threading, and CE/ISO 9001 certification, they deliver reliable performance, easy compatibility with lifting sockets, and consistent quality in demanding construction environments.

Key Clamp Fittings

Key clamp fitting can be used with pipe to build many practical structures. We have been engaged in the sales of this series of products since 2006, and now we can provide dozens of fittings with pipe outer diameters such as 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", etc. We have integrated a complete supply chain and a professional team to provide high-quality products and services. You can contact us at any time to get a more suitable price.

Structural Pipe Fittings

Galvanized Pipe Handrail Fittings

Structural Pipe Fittings

Structural pipe fittings are metal parts used to connect pipes of various lengths and diameters using many types of fittings to form a structure with a specific function. It is also often called key clamp fittings or slip-on pipe fittings. Common structures built with it include handrails, guardrails, safety railings, roof guardrails, outdoor amusement facilities, brackets, indoor tables and chairs, etc. HULK Metal can provide structural pipe fittings with pipe diameters of 1/2", 3/4", 1", 1 1/4", 1 1/2", and 2" that are hot dip galvanized, double coated, powder coated, and raw black.

Handrail Bracket Structural Pipe Fitting

The HULK Metal handrail bracket structural pipe fittings come with detailed dimensions, hole sizes, and pipe diameters that match to make sure they work together. There are many types of surface treatments that can be used to meet different environmental needs. These include hot-dip galvanizing, double-coating galvanizing, and powder coating. Every product has its code that makes it easy to find and order, which helps you keep track of projects better while making sure they are always high quality and work the same way.
Internal Swivel Tee

HULK Metal manufactures Internal Swivel Tee Structural Pipe Fittings in different tube sizes to suit various project requirements. We provide options in malleable iron, ductile iron, and customizable materials, all available with galvanizing, powder-coating, or special finishes. Standard tube sizes include 33.7 mm, 42.4 mm, and 48.3 mm, with additional customization available upon request. These fittings are designed to meet higher structural performance and provide longer-lasting protection against corrosion.
Three Socket Angle Tee

Our Three Socket Angle Tee Structural Pipe Fitting is available in multiple tube sizes and customizable designs to fit diverse project requirements. Customers can choose from durable malleable iron, ductile iron, or stainless steel with various surface finishes, including galvanizing and powder coating. With adjustable angles from 0–11 deg, this fitting ensures flexible installation and long-lasting performance. Each fitting is manufactured under strict standards, ensuring consistency, reliability, and high load capacity.
Slope Short Tee

Our Slope Short Tee Structural Pipe Fittings are produced with strict dimensional accuracy and high-quality materials. They are available in malleable iron, ductile iron, or customized alloys, and can be finished with galvanizing, powder coating, or other protective layers. Multiple tube sizes and angles (0–11 degrees) ensure compatibility with different project requirements. Customizable options are also available to meet the special needs of industrial and architectural applications.
Railing Bracket
Base Flange

The parameters of base flange structural pipe fittings include different sizes, codes, surface treatments, and dimensions to match a variety of pipes. Each type is carefully produced with precise casting and strict testing to ensure reliability. Options such as hot-dip galvanizing, double galvanizing, and powder coating provide enhanced corrosion resistance. Buyers can select the most suitable specifications according to application needs, ensuring better adaptability and long-term performance in structural projects.
Railing Base Flange

The parameters of Railing Base Flange Structural Pipe Fittings include detailed size options, different pipe compatibility, and surface treatment codes. Buyers can choose from hot-dip galvanized, double galvanized, powder coating, or raw black finishes to match project needs. Each size provides accurate dimensions to ensure easy installation and secure support. These fittings are designed for reliable use in railing uprights, safety barriers, and various structural frameworks, meeting diverse customer requirements.
Short Swivel Tee

The Short Swivel Tee Structural Pipe Fitting is available in a variety of sizes to meet different system requirements. Manufactured from malleable iron, ductile iron, or customized materials, it can be supplied with hot-dip galvanizing, powder coating, or other protective finishes. The fitting ensures reliable connections across multiple tube diameters. Technical data, including size codes, tube compatibility, and surface options, helps buyers choose the most suitable product for their projects.
External Sleeve Joint Structural Pipe Fitting

The parameters of external sleeve joint structural pipe fittings cover dimensions, surface finishing, and product codes. These fittings are available in multiple pipe sizes to match different railing or structural requirements. Customers can choose from hot-dip galvanizing, double galvanizing, powder coating, or raw black finishes. Each fitting has a specific code for easy identification, ensuring you can order and manage products more efficiently for your projects.
Swivel Base Flange

Our Swivel Base Flange structural pipe fittings are available in a range of sizes and materials to meet diverse project requirements. Choose from malleable iron, ductile iron, or customizable materials, with surface treatments like galvanizing, powder coating, or custom finishes. Standard tube sizes include 26.9mm, 33.7mm, 42.4mm, 48.3mm, and 60.3mm, while bespoke options are available. Each fitting is precision-engineered to ensure secure, long-lasting connections in industrial, commercial, and DIY applications.
Corner Swivel Combination

The Corner Swivel Combination structural pipe fittings from HULK Metal are available in multiple sizes to match different tube diameters, including 26.9mm, 33.7mm, 42.4mm, and 48.3mm. They can be manufactured from malleable iron, ductile iron, or customized materials, with surface finishes such as hot-dip galvanizing and powder coating. We also provide tailor-made options to meet special project needs, ensuring a reliable solution for varied structural applications.
Add on Crossover Pipe Fitting

Our Add on Crossover Structural Pipe Fittings are available in various sizes and materials to suit different construction needs. Each fitting can be made of malleable iron, ductile iron, or customized materials, with surface treatments such as galvanizing or powder coating for enhanced corrosion resistance. Standard tube sizes include 33.7mm, 42.4mm, and 48.3mm, but we also provide customizable options to meet special project requirements.
90 Degree Two Way Elbow

The parameters of the 90 Degree Two Way Elbow structural pipe fitting cover multiple specifications to meet diverse project requirements. You can check available sizes, surface treatment options, and corresponding CODE to ensure the most suitable choice for your handrail, guardrail, or industrial systems. With precise dimensions, durable finishes, and detailed product codes, it is easier for purchasers to select and confirm fittings that match their application needs.
Four Socket Cross

Our Four Socket Cross Structural Pipe Fitting comes in a variety of sizes and surface treatments to suit different projects. Made from malleable iron or ductile iron, and customizable on request, these fittings are durable and corrosion-resistant. The table below shows the available tube sizes and codes. Each fitting is designed for a precise fit, ensuring ease of assembly and long-term stability in fence systems, DIY projects, and industrial structures.
Clamp on Crossover

The parameters of Clamp on Crossover Structural Pipe Fittings demonstrate their versatility across different system requirements. HULK Metal offers a wide range of tube sizes to suit various structural applications. Surface treatments like galvanizing or powder coating enhance corrosion resistance, ensuring longer service life. With customizable material options and dimensions, our Clamp on Crossover can be tailored to meet specific project demands, ensuring strength, reliability, and compatibility with existing pipe systems.
Offset Crossover

The Offset Crossover Structural Pipe Fitting is available in a wide range of tube sizes to suit different construction requirements. Each product is manufactured with premium materials such as malleable iron or ductile iron and can be customized with various finishes including galvanizing and powder coating. With options for both standard and custom sizes, HULK Metal provides reliable solutions to meet your project's unique technical specifications.
90 Degree Two Socket Tee

HULK Metal provides 90 Degree Two Socket Tee Structural Pipe Fittings in a variety of sizes to fit different tube diameters. Manufactured from malleable iron, ductile iron, or customized materials, these fittings are available with galvanized, powder-coated, or tailored finishes. They are designed to meet diverse application requirements, ensuring strength, corrosion resistance, and adaptability. Each fitting can be customized with specific dimensions and surface treatments.
Three Socket Cross

Our Three Socket Cross Structural Pipe Fittings come in various sizes to fit standard pipes from 26.9mm to 60.3mm. Crafted from malleable or ductile iron, they can be customized to meet specific project needs. Surface finishes include galvanized, powder-coated, or tailored options. These fittings are ideal for industrial, agricultural, and DIY projects where reliable pipe connections and corrosion resistance are essential. Custom dimensions and codes are available upon request.
Clamp on Tee

Our Clamp on Tee Structural Pipe Fittings are available in multiple tube sizes to fit diverse applications, with customizable material options including malleable iron, ductile iron, and other metals. Surface treatments such as galvanized, powder-coated, or custom finishes enhance durability and corrosion resistance. Each fitting is produced to meet strict international codes and standards, providing reliable performance for structural projects, guardrail systems, handrails, and DIY installations, ensuring safety and long-lasting use.
Two Socket Cross

Our Two Socket Cross Structural Pipe Fittings are available in multiple sizes and materials to meet different construction needs. They can be made of malleable iron, ductile iron, or customized materials, and are offered with hot-dip galvanizing, powder coating, or other surface treatments for enhanced durability. With size options ranging from 26.9mm to 60.3mm, and customizable specifications, they can perfectly match your project requirements.
Double Swivel Combination

HULK Metal provides Double Swivel Combination Structural Pipe Fittings in a range of tube sizes from 26.9mm to 48.3mm, with customizable options available. Manufactured from malleable iron or ductile iron, these fittings can be surface-treated with galvanizing, powder coating, or special finishes to suit specific applications. Clear parameter data, including material, tube sizes, and codes, ensures buyers can easily select the right fittings for their projects.
Three Socket Tee

The Three Socket Tee Structural Pipe Fitting comes in multiple sizes to fit tubes ranging from 26.9mm to 60.3mm, with customizable options for other dimensions. HULK Metal offers a choice of materials such as malleable iron, ductile iron, or aluminum, with surface treatments including galvanizing, powder coating, or tailored finishes. This flexibility ensures suitability for a wide range of environments, from industrial projects to outdoor guardrail systems.
Side Outlet Elbow

HULK Metal Side Outlet Elbow Structural Pipe Fittings are available in a wide range of sizes to meet different system requirements. Customers can choose from various surface finishes, including hot-dip galvanizing, double-coating galvanizing, and powder coating, to suit different environments. Each fitting is designed with accurate dimensions and product codes, making selection and installation easier, faster, and more reliable for international projects.
Variable Swivel Elbow

The parameters of the Variable Swivel Elbow Structural Pipe Fitting cover material options, surface treatments, and tube size compatibility to meet different project requirements. You can choose from malleable iron, ductile iron, stainless steel, or aluminum, and apply galvanizing, double-coating, or powder-coating finishes. Various tube sizes are available to fit different systems, and customization options are provided to meet specific structural demands.
Reducing Short Tee

The Reducing Short Tee Structural Pipe Fitting comes in a variety of tube size combinations to meet different railing and construction needs. Manufactured with malleable or ductile iron, it offers strength, stability, and long service life. Customers can choose from galvanized, powder-coated, or custom finishes to match specific project requirements. Additional sizes and OEM solutions are available to support diverse applications worldwide.
Single Socket Tee

The parameters of the Single Socket Tee Structural Pipe Fitting demonstrate its adaptability for diverse projects. Available in malleable iron, ductile iron, or customized materials, it can be finished with galvanizing, powder coating, or other treatments to ensure corrosion resistance. With standard tube sizes of 33.7mm, 42.4mm, and 48.3mm, plus customizable options, HULK Metal guarantees fittings that precisely match your installation needs.
Single Lugged Bracket

HULK Metal provides Single Lugged Bracket Structural Pipe Fittings with customizable specifications to meet different project requirements. You can choose from malleable iron, ductile iron, or other requested materials. The surface can be treated with galvanizing, powder coating, or tailored finishes for enhanced durability. Standard tube sizes include 33.7mm, 42.4mm, and 48.3mm, while customized dimensions are also available to suit unique applications.
Vertical Railing Side Support

The Vertical Railing Side Support Structural Pipe Fitting parameters showcase its adaptability and strength. Made from malleable or ductile iron, with options for galvanized, powder-coated, or customized surface treatments, it is designed to fit common tube sizes such as 33.7mm, 42.4mm, and 48.3mm. Additional customization is available to meet diverse project requirements, ensuring compatibility with international standards and delivering reliable performance across different installation environments.
Cradle Clamp

Our Cradle Clamp Structural Pipe Fittings are available in multiple tube sizes, including 33.7mm, 42.4mm, and 48.3mm, with customizable options to match specific project needs. Each fitting is manufactured from high-quality malleable or ductile iron and can be finished with galvanizing, powder coating, or other requested surface treatments. With standardized dimensions and accurate machining, these fittings ensure secure assembly, consistent quality, and adaptability for various railing and structural pipe systems.
Horizontal Railing Side Support Structural Pipe Fitting

Our Horizontal Railing Side Support Structural Pipe Fittings are available in multiple tube sizes including 33.7mm, 42.4mm, and 48.3mm, with customizable options to meet your project needs. Produced from malleable or ductile iron, they can also be tailored with alternative materials. Multiple surface treatments such as galvanizing and powder coating are provided, ensuring corrosion resistance and a longer service life in different environments and installation conditions.
Adjustable Short Tee 30-60 Degree

HULK Metal provides Adjustable Short Tee fittings in multiple tube sizes, ranging from 26.9 mm to 48.3 mm, with an adjustable angle of 30 deg–60 deg. These fittings can be customized in materials such as malleable iron or ductile iron, with surface treatments including galvanizing or powder coating. The flexibility in specifications and finishes ensures compatibility with diverse project requirements and guarantees reliable performance in different installation environments.
Single Swivel Combination

The Single Swivel Combination Structural Pipe Fitting comes in a wide range of tube sizes from 26.9mm to 60.3mm, with customizable options to meet project-specific requirements. Made from malleable iron, ductile iron, or customized materials, it supports multiple surface treatments, including galvanizing and powder coating. Each product is manufactured to strict standards, ensuring consistency, durability, and compatibility with different structural pipe systems.
Add on Short Tee

The Add on Short Tee Structural Pipe Fitting is available in multiple tube sizes to suit different system requirements. Produced with malleable iron, ductile iron, or custom materials, the fittings can be finished with galvanizing, powder coating, or special treatments. Each product is manufactured with strict quality standards to ensure durability, precision, and compatibility. Customers can also request tailored dimensions and surface finishes for specific applications.
Variable Elbow

The parameters of Variable Elbow Structural Pipe Fitting include multiple pipe size options, corrosion-resistant surface treatments, and internationally standardized codes. Customers can select from hot-dip galvanizing, double-coating galvanizing, or powder coating depending on the application environment. Each fitting is designed to meet precise dimensional accuracy, ensuring smooth installation and compatibility. With clear specification codes, buyers can easily choose the right size and surface finish for their project needs.
Adjustable Angle Two Socket Cross

The Adjustable Angle Two Socket Cross Structural Pipe Fitting is produced with malleable iron, ductile iron, or customizable materials. Available surface treatments include galvanizing and powder coating for enhanced protection. It fits standard tube sizes of 33.7mm, 42.4mm, and 48.3mm, with adjustable angles ranging from 45° to 90°. Customization options are also available, allowing you to choose the best dimensions and finishes for your project requirements.
Galv Ground Socket Structural Pipe Fitting

Our Galv Ground Socket Structural Pipe Fittings are available in various tube sizes to meet different construction needs. Manufactured with malleable iron, ductile iron, or customized materials, they offer both strength and flexibility. The surface treatment can be galvanized, powder-coated, or customized to enhance corrosion resistance. Standard tube sizes include 33.7mm, 42.4mm, and 48.3mm, while customized options are available to suit specific project requirements.
Side Palm Fixing

HULK Metal produces Side Palm Fixing Structural Pipe Fittings in multiple sizes and materials to suit diverse railing applications. Standard socket dimensions cover tube sizes of 33.7mm, 42.4mm, and 48.3mm, with options for customization. Customers can choose surface treatments such as hot-dip galvanizing, double-coating, or powder coating for enhanced corrosion resistance. Each fitting is produced under strict quality control to ensure accuracy, durability, and long-term performance in various projects.
Double Lugged Bracket Structural Pipe Fitting

The Double Lugged Bracket Structural Pipe Fitting is available in multiple sizes and surface finishes to fit diverse structural applications. Manufactured with malleable iron, ductile iron, or customized materials, it can be treated with galvanizing, powder coating, or other finishes. Standard tube compatibility ranges from 26.9mm to 48.3mm, with customizable options available. Each fitting is precisely designed and coded to meet international quality and installation standards.
Double Male Swivel Structural Pipe Fitting

HULK Metal's Double Male Swivel Structural Pipe Fittings are manufactured with strict dimensional standards and various surface treatments, such as hot-dip galvanizing or powder coating, to enhance durability. Multiple tube sizes from 26.9mm to 60.3mm are available to meet different structural requirements, and customization is supported. Each product is identified with specific codes for easy procurement and project management, ensuring seamless integration into your system.
Plug Structural Pipe Fitting

Our Plug Structural Pipe Fittings are manufactured with malleable iron, ductile iron, or customized materials to meet different project requirements. Multiple surface treatments such as galvanizing or powder coating ensure durability and corrosion resistance. Standard sizes fit common tubes ranging from 26.9 mm to 60.3 mm, with customization available. Each product is precisely designed and tested to ensure secure fitting, reliable sealing, and long-lasting performance in various structural systems.
Hook Structural Pipe Fitting

Our Hook Structural Pipe Fittings come in multiple sizes to fit different pipe diameters. They are available in cast iron, stainless steel, and aluminum with surface treatments including hot-dip galvanizing, double-coating galvanizing, and powder coating. Each hook meets international quality standards, and their dimensions, materials, and coatings are carefully selected to ensure durability, corrosion resistance, and compatibility with your handrail or pipe systems.
Slope Railing Base Flange

Our slope railing base flange pipe fittings are available in multiple sizes and surface finishes to match different railing system requirements. With precise dimensions and high-quality materials such as malleable iron and ductile iron, these fittings provide superior stability and performance. Options include hot-dip galvanizing, double galvanizing, powder coating, or raw black finish, allowing you to choose the most suitable treatment for your application environment.
Gate Hinge

Our gate hinge structural pipe fittings are available in multiple sizes to match standard pipes, ensuring easy installation and reliable strength. Each hinge can be supplied with hot-dip galvanized, double galvanized, powder-coated, or raw black surfaces, providing excellent resistance to corrosion. With clearly defined product codes, dimensions, and finishes, you can select the right fitting quickly for your project. These fittings are designed to deliver dependable performance in both indoor and outdoor applications.
Gate Eye Structural Pipe Fittings

The Gate Eye Structural Pipe Fittings come in multiple sizes ranging from DN20 to DN40, making them suitable for different gate and railing systems. Each size is precisely cast and surface-treated to guarantee durability. Options include hot-dip galvanizing, double galvanizing, powder coating, and raw black finishes. Each fitting is coded for easy identification, ensuring accurate ordering, faster processing, and reliable assembly in both fencing and DIY structural applications.

Galvanized Pipe Handrail Fittings

Galvanized pipe handrail fittings are slip-on pipe fittings that connect pipes through sockets and use side grub screws to fasten the entire handrail. Its surface treatment includes hot-dip galvanizing and double-layer galvanizing. The latter is more expensive but the coating is thicker and more beautiful. HULK Metal has a complete supply chain and a professional team to provide a full range of products and services. You can download our product catalog or directly inquire.

101 Galvanized Pipe Handrail Fittings Pipe Clamp Short Tee

The Galvanized Pipe Handrail Fittings Short Tee is available in a wide range of sizes to meet different construction needs. Each fitting can be produced with hot-dip galvanizing, double galvanizing, powder coating, or raw black finish, offering excellent adaptability to different environments. Detailed dimensions and codes allow buyers to quickly select the right product, ensuring easier procurement, accurate matching, and consistent installation results.
101R Galvanized Pipe Railing Fittings Reducing Short Tee

The parameters of the Galvanized Pipe Handrail Fittings Reducing Short Tee include a complete range of sizes, surface treatments, and dimension codes to meet different project needs. Each fitting is available in malleable or ductile iron with hot-dip galvanizing, double galvanizing, powder coating, or raw black finishes. Customers can easily select the right type by checking pipe size, finishing code, and dimensions to ensure compatibility and long-term performance.
104 Galvanized Slip-on Pipe Fittings Long Tee

The Galvanized Slip on Pipe Fittings Long Tee is available in different sizes ranging from DN20 to DN50, meeting diverse installation requirements. Each product can be finished with hot-dip galvanizing, double galvanizing, powder coating, or raw black surface to suit different usage environments. Detailed codes and dimensions are provided for easy selection, helping you identify the correct product for your specific project needs.
116 Galvanized Pipe Clamp Fittings Side-outlet Tee

The galvanized pipe clamp fittings side outlet tee is available in a wide range of sizes, suitable for pipe diameters from 21.3mm to 60.3mm. Customers can choose from hot-dip galvanizing, double-coating galvanizing, powder coating, or raw black surface finishes to match their project requirements. Each fitting is carefully coded and dimensioned to ensure precise installation, excellent performance, and long-lasting durability under different environmental conditions.
116A Galvanized Pipe Guardrail Fittings Add On Side-outlet Tee

Our Galvanized Pipe Guardrail Fittings Add On Side-outlet Tee parameters cover multiple pipe sizes, surface treatments, and customized codes, helping customers quickly match the right product to their project needs. With options including hot-dip galvanizing, double galvanizing, powder coating, and raw finish, buyers can select the best solution for durability, cost-effectiveness, and environmental suitability. Standardized dimensions ensure easy compatibility with international guardrail and handrail system requirements.
119 Galvanized Safety Railing Fittings Two Socket Cross

Our Galvanized Safety Railing Fittings Two Socket Cross (119) comes in a wide range of sizes and finishes to meet various project requirements. Customers can select from hot-dip galvanized, double galvanized, powder-coated, or raw black finishes to match different environments. The detailed code system, along with precise dimensions, ensures easy selection and accurate application for both standard railing systems and customized structures.
119R Galvanized Pipe Connector Fittings Reducing Two Socket Cross

The parameters of the 119R galvanized pipe connector fittings reducing two socket cross include size specifications, surface finishing options, and product codes. Available in multiple diameters to match various pipe systems, this fitting ensures precise compatibility. Customers can choose hot-dip galvanizing, double galvanizing, or powder coating according to usage environment. Each product code corresponds to its finishing, making selection and procurement easier and more efficient for different application needs.
119A Galvanized Railing Connectors Add-on Two Socket Cross

The Galvanized Railing Connectors Add-on Two Socket Cross is available in different sizes and surface treatments to fit various railing applications. Each product is precisely cast and processed to meet strict dimensional standards. Customers can choose hot-dip galvanizing, double galvanizing, powder coating, or raw black finishes according to environmental needs. We provide clear product codes, detailed dimensions, and pipe size compatibility to simplify selection and ensure reliable system performance.
123 Galvanized Railing Fittings 40 to 70 Elbow

The 123 Galvanized Railing Fittings 40–70 Elbow is designed to connect two pipes at an adjustable angle, widely used in stair rails, sloped handrails, and guardrail systems. With multiple finishing options and strict ISO 9001 quality control, it offers higher durability, corrosion resistance, and easy installation.
124 Galvanized Key Clamp Fittings 125 to 178 Elbow

The 124 Type Galvanized Key Clamp Fitting is manufactured from malleable or ductile iron and finished with hot-dip galvanizing, double galvanizing, or powder coating for enhanced durability. Available in 33.7mm, 42.4mm, and 48.3mm sizes, it ensures compatibility with global standard pipes. Each fitting complies with ISO 9001 quality standards, offering excellent corrosion resistance and reliable performance for guardrail, handrail, and DIY structural applications.
125 Galvanized Slip on Pipe Fittings 90 Degree Elbow

The 125 Galvanized Slip on Pipe Fittings 90 Degree Elbow is available in sizes from 21.3 mm to 60.3 mm (1/2" to 2") and manufactured from malleable or ductile iron. Multiple surface treatments, including hot-dip galvanizing, double galvanizing, and powder coating, ensure corrosion resistance and durability. Each fitting meets strict dimensional tolerances and quality standards, making it suitable for handrails, guardrails, and DIY structures in diverse indoor and outdoor applications.
125R Galvanized Safety Rail Fittings 90 Degree Elbow

We currently only have CD reducing 90 degree elbow. If you have special requirements and the quantity is large, we also support OEM service.

Custom Metal Parts

Custom metal parts are non-standard components with special shapes, tolerances, and functions, designed for use in various industries such as automotive manufacturing, construction, machinery production, and decoration. They are made from raw materials like steel, iron, aluminum, and copper through processes such as casting, forging, CNC machining, and sheet metal fabrication. HULK Metal has been providing custom metal parts OEM services to customers around the world since 2004. We have now formed a professional team that can design solutions based on your drawings to save more costs and ensure the quality of the goods. We provide QA services and look forward to your consultation.

Casting Spare Parts

Forging Parts Suppliers

Metal Stamping Parts

Machined Metal Parts

Pump & Valve Parts

Casting Spare Parts

Casting spare parts are metal workpieces with special shapes, sizes, and functions made from various metals using appropriate metal casting processes. HULK Metal integrates a complete metal foundry to complete casting spare parts that require sand casting, investment casting, lost foam casting, or die casting. Currently we can process metal parts made of ductile iron, gray iron, malleable cast iron, carbon steel, alloy steel, stainless steel, aluminum, etc. We have passed ISO9001 certification. The experienced technical team can develop a more complete solution based on your drawings and calculate a more competitive quotation. We provide QA services. Looking forward to your inquiry.

Forging Parts Suppliers

There are many forging parts suppliers in the world, and their company sizes vary, with different production capabilities and services. HULK Metal is one of the well-known forging parts suppliers in China. We have been providing forging parts production and export services to global customers since 2004 and have rich experience. We have a complete supply chain and service team to provide more thoughtful services, help solve more problems that arise during order production, and protect your rights and interests by providing after-sales service.

Metal Stamping Parts

Metal stamping parts are metal components with special shapes, sizes and functions that are made of metal sheets by blanking, deep drawing, bending, punching and other processes. Common metal sheets are made of galvanized iron, galvanized steel, carbon steel, alloy steel, stainless steel, aluminum alloy, etc. HULK Metal is a Chinese supplier with an advanced sheet metal manufacturing plant. We can provide you with OEM and ODM services such as cutting, welding and stamping. We will sign an NDA agreement with you and provide after-sales service. You can rest assured to place your order with us.

Sheet Metal Stamping Parts

HULK Metal has been providing higher-quality sheet metal stamping production services to customers worldwide since the end of the 20th century. To this end, we have continuously integrated stamping factories, raw material suppliers, packaging material factories, and other resources and continuously improved supply chain management and service levels. So far, we have provided hundreds of sheet metal stamping parts OEM services for hundreds of companies around the world. You can contact us at any time to visit our factory and place your order with us after understanding our production capacity and service capabilities.
Sheet Metal Auto Parts

HULK Metal is an experienced sheet metal fabricator that has provided high-quality OEM services to dozens of automotive parts buyers worldwide. We are familiar with and master advanced sheet metal manufacturing processes such as laser cutting, punching, deep drawing, spinning, bulging, etc., and have advanced production equipment and an experienced team of workers. We strictly implement ISO 9001 and ISO 16949 quality management. The professional technical team will develop a more complete solution according to your requirements to improve order production efficiency and minimize costs while ensuring product quality.
We can process aluminum, steel, stainless steel plates and strips with thicknesses ranging from 0.1mm to 20mm. The tolerance can reach 0.001mm.
We provide comprehensive after-sales service to let you enjoy comprehensive quality assurance. You can rest assured to entrust your sheet metal automotive parts orders to us for production.
The table below shows you our production capabilities.
Steel Metal Stamping Parts
Stainless Steel Metal Stamping Parts
Home Appliance Metal Stamping Parts
Aluminum Heat Pipe Heat Sink
Copper Metal Stamping Parts
Precision Metal Stamping Parts
Metal Stamping Parts
Custom Metal Stamping Parts
Concrete Precast Metal Stamping Parts
Carbon Steel Metal Stamping Parts
Brass Metal Stamping Parts
OEM Metal Stamping Parts
Auto Accessories Metal Stamping Parts
Aluminum Sheet Metal Stamping Parts
Aluminum Metal Stamping Parts

Machined Metal Parts

Machined metal parts are components with more precision and special functions that are made by CNC machining centers using turning, milling, grinding, drilling, and other tools to process metal billets or semi-finished castings and forgings. They are widely used in the automotive, construction, and machinery industries and various other industries. HULK Metal is a China-machined metal parts supplier that can provide OEM and ODM services and make more perfect solutions according to your drawings and requirements to ensure faster delivery of goods with higher quality and better prices. We provide after-sales service; please rest assured to purchase.

Pump & Valve Parts

Pump parts are the components that make up the pump, including the body, housing, cover, impellers, brackets, etc. Valve parts are composed of the body, handle, stem, gate (gate valve), disc (butterfly valve), ball (ball valve), etc. These metal parts are made of ductile iron, gray iron, carbon steel, alloy steel, stainless steel, and aluminum alloy through casting, forging, CNC processing, and other processes. HULK Metal has passed ISO 9001 certification and has been providing OEM and ODM services for pump and valve parts since 2004. Looking forward to your inquiry.

Wire Rope Cable Puller Gripper

When a wire rope or cable needs to be pulled or tightened, a fulcrum is often needed. This requires a tool that can be used to hold the wire rope or cable firmly and provide a loop for hanging the hook. The wire rope cable puller Gripper was born under this circumstance. It has many styles: the first one is made by intertwining metal mesh, which can clamp the cable and provide a connection point after being tightened on one end of the cable. The second one clamps the cable through a jaw at one end, and the loop at the other end can connect the hook and the lock.

Jaw Wire Cable Puller Gripper

HULK Metal's Jaw Wire Cable Puller Grippers are designed to provide strong grip, smooth pulling, and enhanced safety in cable tensioning applications. Built with high-quality materials and advanced manufacturing techniques, our pullers deliver consistent performance under demanding conditions. Whether you need sawtooth-type or round-type models, our range meets various load capacities and cable sizes. Backed by strict quality control and comprehensive production capabilities, we ensure each gripper meets international standards. With OEM services available, we help customers worldwide get customized solutions that fit their exact cable pulling needs.

Come Along Clamp

HULK Metal produces a wide range of Come Along Clamps with different load capacities, jaw openings, and surface finishes to match various conductors. Our models cover copper cable, aluminum cable, ACSR, ACSS, AAC, ABC, bare Cu cable, guy wire, and more. Each clamp is precisely forged and tested to meet international standards, ensuring safety, durability, and stable performance for demanding power line and cable projects.
Wire Grips

HULK Metal Wire Grips are available in multiple load ratings, cable diameters, and surface finishes to match diverse applications. Our catalog covers grips for copper, aluminum, ACSR, guy wire, and steel rope. Each product is engineered for strong holding capacity, safety, and efficiency. With detailed specifications and clear coding, bulk buyers can easily choose the right Wire Pulling Grips for their projects.
Heavy Duty Wire Rope Pulling Tool
Steel Jaw Cable Puller

The table below shows the wire diameter range, tensile force range and MOQ of steel jaw cable puller we can provide. You can download our product catalog to get more detailed parameters.
Jaw Cable Gripper

We can currently produce a variety of high-performance alloy steels that can be used for wire diameters between 0.08~1.8in (2.03~45.7mm), tensions between 1500~20000lbs (0.68~9tons) and for various wire types of Jaw Cable Gripper.
Steel Wire Rope Gripper
Jaw Grip Puller for Aluminum Cable
ABC Conductor Grips

We have 4 types of ABC Conductor Grips to choose from, Load Capacity, ABC diameter, CODE and product image information can be found in the table below. You can also click the button on the right side of the image to download them directly.
Jaw Rope Puller

Jaw Rope Puller Parameter

Jaw Rope Puller has passed strict sampling inspection before leaving the factory. Each batch of goods can meet the use requirements. We have a complete supply chain to provide you with more thoughtful services and higher quality products.

Jaw Rope Puller is a tool designed to pull Copper Cable, Cover Cable, Bare Aluminum Cable, ACSR, ACSS, AAC, ABC, Bare Cu Cable, Guy Wire, Wire Rope, Barbed Wire, Trolley Wire, etc. to a specific location. One end of the Jaw Rope Puller is used to connect to the tensile machine, and the other end is connected to the rope. As the tensile machine is started, the cable will gradually tighten or be pulled out from one end of the cable duct.

There are two designs for the jaws of the Jaw Rope Puller terminal jaws:
One is that the fixed jaw is straight and smooth, and the movable jaw is curved with longer anti-skid teeth. This type has a smaller contact area with the cable than the other and is more suitable for tightening harder metal ropes.
The other type has both the fixed jaw and the movable jaw straight and horizontal, and both are filled with shallow anti-skid teeth. This type has a larger contact surface with the cable, which can provide stronger friction while protecting the outer skin of the rope. It is suitable for more rope operation scenarios.
Some types of Jaw Rope Pullers will have side baffles, which are used to prevent the cable from detaching from the side of the Jaw Rope Puller due to force changes when tightening, causing accidents.
They all use springs to achieve automatic merging after opening. We use high-elastic alloy springs that can be used repeatedly for hundreds of times.

Jaw Rope Puller Supplied by HULK Metal is made of high-performance alloy steel through hot die forging. It has stronger performance.

Most of its parts are produced by hot die forging, the baffles are laser cut, and the parts are assembled by our assembly line after galvanizing.
Its surface treatment is electrogalvanizing. Its average coating thickness is 5μm.
Jaw Wire Puller

Our Jaw Wire Puller has two types of jaws to accommodate a wider variety of wires. Some types also have side panels to prevent the wire from slipping out from the side during tensioning. You can choose a more suitable one based on factors such as wire type, wire diameter, and usage scenario.
Guy Wire Jaw Grip Puller

HULK Metal can provide you with a variety of jaw grip pullers. You can choose a more suitable style according to the Guy Wire diameter, tension and other parameters, as well as the contact surface damage requirements.

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Learn about specialized aluminum die casting factories equipped with advanced hot- and cold-chamber machines, automated mold handling systems, and in-house finishing lines. These factories can handle projects from small intricate parts to large structural components, ensuring consistent quality and efficient production. Skilled technicians oversee mold creation, casting, trimming, and finishing, guaranteeing precise dimensions and strong mechanical properties. Discover how our related factories deliver excellence for automotive, electronics, lighting, and industrial equipment applications worldwide.

Metal CNC Turning Companies

HULK Metal collaborates with top CNC turning companies in China to provide high-precision machining services for casting, forging, and custom metal parts. Backed by modern equipment and skilled teams, our CNC turning factories serve clients across more than 20 industries with OEM and ODM solutions tailored to meet specific needs.

Metal CNC Milling Companies

Metal CNC milling companies play a critical role in transforming raw or semi-finished metal into highly precise components. They specialize in the CNC machining of cast, forged, and machined blanks into finished parts used across automotive, construction, aerospace, and many other industries.

CNC Machining Factory

CNC machining factory is a factory with an advanced CNC machining center that can use machining technology to process various metal forgings, castings, and billets into more precise metal parts. HULK Metal is one of the companies in China with rich CNC machining factory resources.

Die Casting Foundry in China

HULK Metal is a trusted die casting foundry in China, offering custom aluminum, zinc, and magnesium alloy parts for global industries. Backed by state-of-the-art equipment and experienced engineers, our foundries provide one-stop OEM and ODM services—from mold design to surface finishing and final delivery.

Quality Control Center

Our Quality Control Center in China is equipped with a full range of advanced testing instruments and staffed by experienced inspectors. We implement strict quality control procedures to thoroughly check the dimensions, shape, and performance of your custom metal parts. A comprehensive inspection report can be provided for every order. Kindly contact our sales manager if you would like to schedule a visit to our quality control center.

Surface Treatment Factory

To better serve our customers, HULK Metal has integrated a diverse network of surface treatment facilities to offer galvanizing, powder coating, electrophoresis, anodizing, polishing, brushing, and other surface finishing services. We are one of China's leading metal parts companies. You can request specific surface treatment methods and quality requirements. Our castings, forgings, stampings, and CNC-machined parts made of iron, steel, stainless steel, and aluminum alloys offer enhanced aesthetics, superior corrosion and oxidation resistance, and smoother surfaces. We provide comprehensive after-sales service, so you can place your orders with confidence.

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Aluminum Die Castings

What are Aluminum Die Castings?

Advantages of Aluminum Die Castings:

Application of Aluminum Die Casting:

Process of Aluminum Die Castings:

1. Die-casting machine commissioning

2. Die-casting mold design and manufacture

3. Die-casting mold design and manufacture

4. Die-casting die installation

5. Paint formulation and application

6. Mold cleaning

7. Mold preheating and coating

8. Die casting mold clamping

9. Aluminum Alloy smelting and heat preservation

10. Die casting injection

11. Inserts preparation

12. Pressure holding

13. Mold opening and core pulling

14. Clean up (refurbishment)

15. Casting infiltration and shot penning

16. Final inspection

Summary

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