EN
RUEvery batch undergoes tensile testing at over three times the working load limit, verifying mechanical strength and ensuring the loops can safely handle required lifting loads.
1. Higher Standard Products
2. Shorter Production Cycle
3. More Corrosion Resistant
4. More Optional Delivery Methods
5. Comprehensive After Service
HULK Metal's cast in loops provide secure, durable lifting solutions for precast concrete elements. CE and ISO certified, they ensure safe handling, faster installation, and long-lasting performance in demanding construction environments.
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.
| Name | Cast-in Lifting Loops | |||
| Drawings |  | |||
| Material | Alloy Steel / Carbon Steel / Aluminum Alloy / Customizable | |||
| Surface Treatment | Electro-galvanized | |||
| Safety Factor | ≥ 3 | |||
| Certification | CE / ISO 9001 | |||
| SWL (tons) | CODE | E(mm) | D(mm) | Rd(mm) |
| 0.8 | HM-CL008 | 60 | 150 | 6 |
| 1.2 | HM-CL012 | 65 | 160 | 7 |
| 1.6 | HM-CL016 | 70 | 165 | 8 |
| 2.0 | HM-CL020 | 80 | 200 | 9 |
| 2.5 | HM-CL025 | 85 | 230 | 10 |
| 4.0 | HM-CL040 | 100 | 240 | 12 |
| 5.2 | HM-CL052 | 100 | 260 | 14 |
| 6.3 | HM-CL063 | 110 | 280 | 16 |
| 8.0 | HM-CL080 | 120 | 320 | 18 |
| 10.0 | HM-CL100 | 135 | 390 | 20 |
| 12.5 | HM-CL125 | 150 | 420 | 22 |
| 16.0 | HM-CL160 | 165 | 450 | 24 |
| 20.0 | HM-CL200 | 180 | 550 | 28 |
| 25.0 | HM-CL250 | 200 | 600 | 32 |
HULK Metal's cast in loops are precision-engineered lifting devices embedded in precast concrete elements to enable safe, efficient handling during transport and installation. Manufactured with high-strength wire rope, each loop undergoes strict dimensional and tensile testing to meet CE and ISO 9001 standards. Their design ensures consistent load distribution, enhanced corrosion resistance, and reliable performance, making them suitable for various construction, infrastructure, and industrial lifting applications under challenging site conditions.
Cast in loops, also known as cast in lifting loops or cast in wire ropes, are lifting devices embedded directly into precast concrete elements during the casting process. They are typically made from high-strength galvanized wire rope, formed into a loop and secured with a ferrule to create a reliable anchor point. Once the concrete hardens, the exposed loop allows lifting hooks or shackles to be easily attached for safe handling. These loops are engineered with a defined working load limit (WLL) and a safety factor, ensuring consistent performance in demanding construction environments. Cast in loops are widely used in precast beams, panels, columns, and other concrete components, enabling faster, safer, and more efficient lifting operations. HULK Metal produces CE-certified cast in loops under ISO 9001 quality standards, delivering products with excellent corrosion resistance, durability, and load-bearing reliability to meet global construction requirements.
Cast in loops are placed in position before the concrete is poured, with the loop portion protruding from the mold. Once the concrete cures, the embedded wire rope creates a secure anchor point inside the structure. During lifting, a hook or shackle attaches to the exposed loop, transferring the load evenly through the rope into the surrounding concrete. This design ensures safe handling and minimizes stress concentrations in the element.
Cast in loops are widely used in the lifting and positioning of precast concrete components such as wall panels, beams, columns, stairs, and bridge elements. They are essential in building construction, infrastructure development, and industrial projects where reliable lifting anchors are required. Their versatility allows them to be applied in both temporary handling during installation and permanent structural integration in certain designs.
HULK Metal's cast in loops offer high load-bearing capacity, excellent corrosion resistance, and consistent quality. Their CE and ISO 9001 certification ensures compliance with global safety standards. They enable faster and safer installation, reduce on-site handling risks, and minimize downtime. With customizable sizes and surface treatments, these lifting loops can be tailored to meet project-specific requirements, improving overall efficiency and durability in precast concrete operations.
Our sales and technical teams thoroughly analyze your drawings, specifications, and lifting requirements. We discuss safety factors, load limits, and application scenarios to ensure every cast in loop is designed precisely to meet your project's lifting, durability, and installation needs.
We source high-strength galvanized wire ropes from trusted suppliers. Upon arrival, our QC team inspects tensile strength, diameter accuracy, and surface condition. Only certified materials that meet our internal quality benchmarks proceed to production for your cast in loops.
Each wire rope is cut to exact lengths using precision cutting equipment. Accurate lengths ensure uniform loop sizes, consistent load distribution, and a professional finish, reducing waste while meeting both functional and aesthetic requirements.
The cut wire rope is shaped into loops and secured with high-quality ferrules using hydraulic extrusion. This process guarantees strong mechanical connections, smooth finishes, and precise loop dimensions for safe lifting performance in concrete applications.
Every loop undergoes dimensional checks and load testing at more than three times its rated WLL. This ensures compliance with CE and ISO 9001 standards, providing reliable lifting performance in demanding construction environments.
Loops receive surface treatments such as galvanizing or anti-rust coating, depending on client requirements. These finishes enhance corrosion resistance, extend service life, and maintain the product's integrity during storage, transport, and long-term use.
Products are securely packed to prevent damage during transit, using protective materials and moisture control measures. We coordinate delivery schedules to meet your deadlines, offering multiple shipping options for faster, more flexible order fulfillment.
Our dedicated after-sales team offers one-on-one support, addressing technical inquiries, replacement needs, and performance feedback. We work closely with you to resolve issues promptly, ensuring long-term satisfaction and confidence in our cast in loops.
Yes, all HULK Metal cast in loops are CE and ISO 9001 certified for safety and quality.
Our cast in loops are tested to exceed three times their rated working load limit for maximum safety.
Yes, we produce cast in loops in custom lengths, diameters, and load capacities to match specific project requirements.
They are made from high-strength galvanized wire rope for excellent load performance and corrosion resistance in harsh environments.
Yes, we offer galvanizing, anti-rust coating, and other treatments to enhance durability and extend service life.
With efficient production planning and multiple shipping options, we can meet urgent delivery schedules without compromising quality.
They are used in lifting precast concrete elements for construction, infrastructure, and industrial projects worldwide.
At HULK Metal, rigorous quality control underpins every cast in loop we produce. From raw material inspection to final delivery, multiple checkpoints ensure product reliability and safety. Our dimensional checks guarantee precise measurements, while tensile tests verify load capacity well above rated limits. Pre-shipment inspections confirm compliance with customer specifications. Quantity inspections ensure order accuracy. This comprehensive QC process assures you receive cast in loops that meet strict CE and ISO 9001 standards consistently.
Every batch undergoes tensile testing at over three times the working load limit, verifying mechanical strength and ensuring the loops can safely handle required lifting loads.
Before shipping, a final quality check confirms product integrity, surface finish, packaging, and documentation accuracy, ensuring that every order meets HULK Metal's strict standards and customer expectations.
We count and verify the exact number of casts in loops per order, preventing shortages or excesses, ensuring accurate fulfillment aligned with purchase agreements.
HULK Metal's cast in loops are produced in advanced factories equipped with cutting-edge machinery and strict process controls. Our factories ensure consistent quality through skilled workforce training and automation integration. A dedicated quality control center monitors each production stage, from raw material inspection to final packaging. This combination of modern production capabilities and rigorous supervision guarantees reliable, high-performance cast in loops that meet international standards and customer specifications.
Choosing HULK Metal means receiving cast in lifting loops that surpass industry standards with CE and ISO 9001 certifications. Our experienced team uses advanced equipment to ensure reliable strength, corrosion resistance, and a shorter production cycle. We offer flexible surface treatments and fast delivery options, supported by comprehensive after-sales service. With thousands of successful orders, HULK provides trusted, high-quality cast in loops that meet your exact project needs.
This section features informative articles related to cast in loops, covering topics such as their design principles, installation techniques, safety standards, and maintenance tips. These resources help users understand the advantages of using cast in lifting loops in precast concrete projects. You'll find detailed guides on choosing the right loop size, complying with CE certification, and maximizing lifting efficiency. Each article is illustrated with images and real-world examples to support better decision-making.
Explore a variety of precast concrete accessories that complement cast in loops, including foot anchors, lifting pins, wire rope cable grippers, and key clamp fittings. These accessories enhance the safety, efficiency, and durability of precast concrete handling and installation. Manufactured with high-quality materials and strict quality controls, they are designed to meet CE and ISO standards. Together, these components form a reliable system for lifting, securing, and positioning precast elements in construction and infrastructure projects worldwide.
HULK Metal offers high-quality foot anchors designed for secure lifting of precast concrete elements. Our CE and ISO 9001 certified lifting pin anchors ensure a threefold safety factor, shorter production cycles, and prompt delivery.
HULK Metal has supplied tens of millions of Lifting Pin Anchors ranging from 1.3 tons to 32 tons to hundreds of buyers around the world. We have a full range of products and a complete supply chain to provide you with quality services. We provide quality assurance services. Please feel free to inquire.
Q345/CM490/20M2/45#/Others
Galvanized/Black
1.3~45.0
≥3
HULK Metal stands out as a leading manufacturer of lifting eye anchors, specializing in precast concrete lifting eye anchors that meet stringent CE certification with a 3 times safety factor.
Q345/CM490/20M2/45#/Others
Galvanized/Black
1.3~5.0
≥3
CE Certified Spherical Head Lifting Anchors
All Size of Spherical Head Lifting Anchors
Can Pass 3 Times Safety Equal
Lifting Pins for Precast Concrete supplied by HULK Metal are CE certified. We can supply Lifting Pins that can pass the tensile test of 3 times the safety factor and strictly implement the IS0 9001 standard to provide high-quality services.
Wavy tail anchor is made of high-performance steel pipe and rebar extrusion after bending. Its SWL range is between 0.5 and 8.0 tons. There are two thread standards, M and RD.
HULK Metal is a well-known supplier in China, providing high-quality and cost-effective Precast Lifting Thread Insert. With a complete supply chain and a professional team, we have provided flat end insert, solid rod insert, Tubular insert and others to global customers. We provide complete QA services. Looking Forward Your Inquiry.
HULK Metal is one of the high-quality Flat End Lifting Insert suppliers in China. In order to provide better services and products, we have integrated a complete supply chain. We strictly implement ISO 9001 management, and after years of development, we can now supply a full range of CE certified Flat End Lifting Insert.
Solid Rod Lifting Inserts supplied by HULK Metal have passed the CE certification. They can pass the tensile test with 3 times the safety factor. We strictly implement ISO 9001 standards to manage the entire supply chain to ensure that we can provide you with better Solid Rod Lifting Inserts and services.
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Fixing sockets with bent ends, also known as fixing inserts with bent ends, is essential for anchoring in precast concrete. These sockets provide robust points for fixing elements, featuring a bent design that enhances grip and stability.
Tubular Lifting Insert supplied by HULK Metal has passed CE certification. Tubular Lifting Insert can pass the 3 times safety factor tensile test, and each batch of goods has a comprehensive test report.
HULK Metal can provide you with RD and M standard 12-45 thread, SWL 0.5 to 8.0tons of Long Wavy Lifting Insert. Its international general standard is CE, which needs to pass the 3 times safety factor tensile force test.
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Flat End Lifting Socket
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Plate spread anchors from HULK Metal feature a welded steel plate and head design, embedded in concrete for edge lifting. Available in various sizes with galvanized options, they support loads up to 10 tons safely.
Unilateral erection anchors serve as specialized lifting inserts for precast concrete, designed for one-sided loading during element erection. They integrate with ring clutches and recess formers, providing stable anchor points that enhance safety and reduce panel stress in construction applications.
HULK Metal supplies flat foot anchors crafted from premium alloys for secure lifting in precast concrete projects worldwide.
HULK Metal stands as a reliable erection anchor supplier in China, delivering high-standard products for precast concrete lifting. Our anchors ensure secure handling with superior strength and corrosion resistance, backed by comprehensive production support for bulk orders.
HULK Metal supplies CE and ISO9001 certified spread anchors with reliable safety factors, faster delivery, and professional support. Choose our spread anchors for superior quality and complete precast lifting solutions.
HULK Metal delivers high-quality two-hole anchors, designed for secure lifting of precast concrete elements. Certified with CE and ISO 9001, our anchors ensure safety, durability, and efficiency.
HULK Metal's Precast Concrete Lifting Lugs, also known as Lifting Clutches or Lifting Eyes, are precision-engineered for heavy-duty lifting. Manufactured with high-strength materials, they ensure safety, durability, and efficiency in precast concrete lifting applications worldwide.
High-quality dog bone lifting eye with CE and ISO9001 certification. Strong, safe, and durable for precast concrete lifting. Shorter production cycle and faster delivery from trusted Chinese supplier HULK Metal.
HULK Metal supplies CE and ISO 9001 certified lifting clutch for pin anchor with 5 times safety factors, shorter production cycles, and complete after-sales support for global precast concrete projects.
Dog Bone Lifting Eye With Chain supplied by HULK Metal can pass the 5 times safety factor test and has been CE certified. We can provide 1.3 to 20 tons load groups.
Ring Clutch supplied by HULK Metal is CE certified and can pass the tensile test with a safety factor of 5. We have integrated a complete supply chain and formed a complete team to provide better products and services.
Precast Concrete Lifting Eyes supplied by HULK Metal has passed CE and ISO 9001 Certified and can passed 5 times safety factor testing. HULK Metal is an experienced manufacturer in China. Looking forward your inquire.
Q345/35CrMo/Others
Galvanized/Black/Powder-coat
1.3~32.0
≥5
Precision Casting
HULK Metal has a well-established supply chain to provide you with a full range of Clevis Slip Hooks, such as G43, G70, G80, CE marked, with latch or none, electro-galvanized, hot-dip galvanized or powder coated. We strictly implement ISO 9001 quality management and have a professional team to provide better services. We are committed to being your office in China, helping you with all aspects of your orders in China.
We have provided customers in more than 100 countries and regions around the world with Clevis Grab Hooks with strength standards such as G43 70 80 that can pass 2 to 4 Times Safety Factor detection.
HULK Metal is an experienced eye grab hooks supplier in China. We have integrated a complete supply chain and formed a professional team to provide better products and services. We can provide eye grab hooks with various specifications and surface treatments.
HULK Metal is an experienced supplier in China, providing Eye Slip Hooks in various materials, strengths, certifications, surface treatments and sizes. We have established a complete supply chain to ensure that raw materials, production and delivery are under control to provide higher quality and low-cost lifting hooks.
HULK Metal provides high-quality Rubber Recess Former for precast concrete lifting systems. They are used with Pin Anchor Recess Former and Spread Anchor Recess Former, ensuring precise recess shaping, shorter production cycles, and faster delivery.
HULK Metal supplies durable lifting pin anchor recess former for precast concrete elements, offering sizes from 1.3 to 32 tons with CE and ISO 9001 certification. Get shorter cycles and comprehensive support for bulk orders.
HULK Metal can provide a variety of precast magnetic formers. With higher quality and a more affordable price, it is your best choice.
The Spread Anchor Rubber Recess Former is made of durable rubber with a reinforced rear metal plate. It is designed for fixing spread anchors in precast concrete, ensuring accurate positioning, easy demolding, and reliable lifting performance.
As one of the excellent magnetic recess former suppliers in China, HULK Metal has advanced factories and perfect supply chain to provide you with high-quality products and services.
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.
HULK Metal's Electrical Box Fixed Magnets feature a durable rubber body combined with strong NdFeB magnets, ensuring reliable fixation of electrical boxes in precast concrete. These magnets are customizable in shape, size, and finish, providing flexibility for bulk orders.
Our Shuttering Magnets for Formwork are designed for precast concrete production, offering reusable and stable fixing solutions. They support different mold sizes and deliver better cost-efficiency for large-scale construction projects.
Our Embedded Corrugated Pipe Fixed Magnet combines premium steel housing with powerful magnets to ensure strong fixation during precast concrete production. It reduces installation time, improves efficiency, and provides consistent performance across different applications, helping customers achieve safer and more reliable concrete elements.
Cast In Channel T Bolts from HULK Metal are precision-forged using high-performance alloy steel or stainless steel. Surface treatments, including electro-galvanizing or hot-dip galvanizing, enhance rust resistance, making them reliable for precast concrete connections in construction and infrastructure projects.
HALFEN Anchor Channels from HULK Metal offer superior quality, CE and ISO certified standards, and five times safety factor. Our fast production and delivery, combined with professional after-sales support, make bulk purchasing simple and reliable.
Name Wire Loop Box Precast Concrete Accessories
Molds Full Range Moulds
Materials Wire Rope / Steel Plate / Customized
SL(mm)±10 60 / 80 / 100 / 120 /140
Our Cast in Channel offers superior strength, certified safety, and flexible application for precast construction. Manufactured with advanced processes, it guarantees durability, easier installation, and faster delivery. HULK Metal supports bulk buyers with full technical service and reliable after-sales support.
Our concrete screw bolts are designed for reliable installation without expansion anchors. Galvanized concrete screws provide superior corrosion resistance, making them ideal for indoor and outdoor use. HULK Metal offers diverse sizes, surface treatments, and customized solutions to match your needs.
Q345/20#/Stainless steel/Others
Galvanized
0.8~25.0
6~32
≥3
HULK Metal lifting loops are made from alloy or carbon steel, precision-threaded, and electro-galvanized for corrosion resistance. Designed for use with lifting sockets, they ensure safe, reliable handling of precast concrete components with a ≥4 safety factor.
As a top metalworking service provider, we want to let every customer experience a sense of security in purchasing, sales, etc., and better realize their value through continuously defining new standards for products and services.
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