EN
RUOrder quantities are verified before shipment, ensuring customers receive accurate deliveries without shortage or overage.
1. Higher Standard Products
2. Shorter Production Cycle
3. More Corrosion Resistant
4. More Optional Delivery Methods
5. Comprehensive After Service
The Combination Ring Clutch is designed for lifting precast concrete elements securely with spread anchors. Manufactured by precision casting and hot forging, it provides strong performance, durability, and safe operation. Each clutch meets international standards and offers consistent reliability in heavy-duty lifting.
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.
| Name | Combination Ring Clutch | ||||
| Drawings |  | ||||
| Material | Q345D / Q355D / CM490 / G30CrMoV / Customizable | ||||
| Surface Treatment | Electro-galvanized | ||||
| Safety Factor | ≥ 5 | ||||
| Certification | ISO9001 / CE | ||||
| SWL (tons) | CODE | LENGTH(mm) | C(mm) | D(mm) | DS(mm) |
| 1.25 | RC0125-20-0320 | 320 | 52 | 20 | dia. 8 |
| 2.5 | RC0250-27-0560 | 560 | 80 | 27 | dia.14 |
| 5.0 | RC0500-27-0595 | 595 | 105 | 36 | dia.18 |
| 10.0 | RC1000-50-0702 | 702 | 150 | 50 | dia.22 |
| 26.0 | RC2600-72-1570 | 1570 | 206 | 72 | dia.32 |
The Combination Ring Clutch is a vital lifting device for precast concrete construction, designed to safely connect with spread anchors. Its unique structure combines precision casting, hot forging, and durable wire rope assembly, ensuring maximum strength and stability. With CE and ISO certification, it provides safe lifting with a five times safety factor. Its smart design makes installation faster, safer, and more efficient for construction projects worldwide.
A Combination Ring Clutch is specifically designed to lift all types of spread anchors used in precast concrete construction. It consists of a precision-cast ring, a forged latch, and a steel wire rope handle. The ring contains a central cavity for the latch, which is secured with a pin to prevent disengagement. The latch includes a hole for connecting the rope, making it easier to disassemble after lifting. Compared with a common ring clutch, the combination version integrates the handle with a wire rope, improving flexibility and safety during lifting. The surface is treated with electroplated zinc, offering corrosion resistance with an average coating thickness of 5μm. To use, the latch is opened, fitted into the spread anchor, then secured in place. Proper load alignment must always be maintained to prevent damage to the concrete and to ensure safe lifting operations.
It consists of three parts: latch, ring and Wire rope.
produced by precision casting. It has a central cavity for placing the latch. It will have the Load Croup mark of this Combination Ring Clutch.
produced by hot forging. There will be a hole on it (for connecting the rope to make it easier to disassemble the Combination Ring Clutch after the lifting is completed), which will be embedded in the central cavity of the ring and prevented from being separated again by a pin.
It is made of high-strength steel wire rope.
The handle of a combination ring clutch is directly connected to the head with a steel wire rope. A common ring clutch uses a high-performance steel plate as the bar, with a ring attached to the head and the ring welded to the bar.
It is completed by electroplating zinc. Its average coating thickness is 5μm.
When using the Combination Ring Clutch, open the latch, open the gap on the ring, clamp the gap on the spread anchor, loosen the latch, and push it into the hole of the spread anchor completely. Pay attention to the load direction when using to prevent damage to the concrete block.
The clutch is the core component of the lifting system, directly connecting spread anchors with lifting hooks. Its precision construction ensures safe operation, while its flexibility allows repeated use in heavy-duty precast concrete lifting tasks.
A recess former creates the cavity required for spread anchors in precast concrete. It ensures accurate positioning and secure fitting of the anchor, making installation faster and enhancing the performance of the lifting system.
Spread anchors are embedded into precast concrete units, working with the clutch to bear loads safely. Their design ensures strong bonding with concrete, allowing efficient and reliable handling of different precast components during lifting.
Lifting hooks connect the crane to the combination ring clutch. They provide a secure link that transfers lifting forces evenly, ensuring stable handling of precast concrete elements during transportation and installation on construction sites.
CE ISO9001 Certified
Need to Pay Attention:
SWL must meet usage requirements.
Load Group must match the Spread Anchors.
Must comply with standards.
Clutch must pass tensile test with 5 times safety factor.
Combination Ring Clutches are widely applied in lifting precast concrete panels, beams, columns, staircases, and other elements. They are essential for construction projects requiring safe, efficient, and reliable handling of heavy components.
Stronger safety factor compared with common clutches.
Faster installation and disassembly.
Corrosion-resistant surface treatment.
Shorter production cycles for bulk supply.
Comprehensive technical and after-sales support.
We develop complete solutions by analyzing requirements such as quantity, dimensions, surface treatment, delivery schedule, and after-sales needs, ensuring the clutch design and production fully meet your project and operational expectations.
We select high-quality alloy steel and wire rope from trusted suppliers. Each batch undergoes rigorous chemical and mechanical property testing to ensure raw materials meet international standards for strength, safety, and durability.
The clutch head is produced using precision casting technology, ensuring accurate dimensions and strong structural performance, which allows the ring to withstand heavy loads consistently during lifting operations in construction projects.
High-performance wire ropes are cut with precision equipment, ensuring accurate length and clean edges. This step guarantees consistent assembly quality and enhances the flexibility and durability of the clutch handle.
The latch is hot-forged to maximize strength and resistance against deformation. Forging improves the mechanical properties, enabling the latch to provide secure locking and safe performance even under extreme lifting conditions.
Each part undergoes dimensional checks, tensile testing, and visual inspection. Defective or substandard parts are rejected immediately to maintain high production standards and ensure safety in final assembly.
All parts are assembled with precision, ensuring secure connections between the ring, latch, and rope. The final product is tested for alignment, flexibility, and overall performance before moving to finishing.
After assembly, clutches undergo load testing, functional checks, and safety verification. Only units meeting CE and ISO 9001 standards are approved for packaging, ensuring every clutch delivered is safe and reliable.
The finished clutches are zinc electroplated for corrosion resistance, with coating thickness checked carefully. This step extends product lifespan, enhances appearance, and ensures consistent protection against environmental conditions.
We provide custom packaging solutions, ensuring clutches are securely packed for global shipment. With an in-house logistics team, delivery schedules are strictly managed to meet project timelines efficiently.
We provide technical consultation, problem-solving support, and replacement services for products with quality issues. Our after-sales team ensures that every customer receives timely and professional assistance after delivery.
It is designed with a five times safety factor to ensure safe lifting operations.
Yes, it can be reused if inspected regularly and confirmed free of damage.
It is compatible with all types of spread anchors for precast concrete.
It is zinc electroplated with an average coating thickness of 5μm for corrosion resistance.
Yes, we offer OEM/ODM services based on your drawings or samples.
Our shorter production cycle and in-house logistics allow faster global delivery.
All clutches are CE and ISO 9001 certified for quality and safety.
Yes, dimensional and tensile strength inspections are conducted before shipment.
Quality is ensured through strict inspections at every stage of production. Each Combination Ring Clutch undergoes dimensional, tensile, hole, and pre-shipment checks, along with quantity verification. Our QC team follows international standards, ensuring each product meets CE and ISO 9001 requirements. This process guarantees safe, durable, and reliable lifting solutions that perform consistently in demanding construction environments.
Order quantities are verified before shipment, ensuring customers receive accurate deliveries without shortage or overage.
Dimensions are carefully checked to ensure compatibility with spread anchors, guaranteeing accurate fitting and reliable performance during lifting operations.
Final products undergo detailed checks before packing to ensure compliance with standards and customer requirements.
Holes in the ring and latch are inspected for accuracy, ensuring proper connection and safe engagement during lifting operations.
Each clutch is tested to verify tensile strength meets or exceeds safety standards, ensuring durability and reliability under heavy loads.
Our factories integrate precision casting, forging, machining, and assembly, ensuring efficient and high-quality production. Each step is supported by advanced equipment and strict QC processes. From casting to surface treatment, we control every stage to guarantee consistent quality and timely delivery. With a professional team and in-house logistics, we provide bulk buyers with a reliable supply chain for Combination Ring Clutches.
HULK Metal is a trusted supplier of Combination Ring Clutches in China, offering certified quality, reliable supply capacity, and strong technical support. Our shorter production cycles, comprehensive QC system, and fast global delivery ensure your projects run smoothly. With decades of expertise in metalworking and precast concrete accessories, we provide bulk buyers with safe, efficient, and cost-effective lifting solutions, backed by professional after-sales service.
Our related articles provide deeper insights into the design, usage, and safety of Combination Ring Clutches and other precast concrete lifting accessories. From installation guidance to case studies, each article helps bulk buyers and project managers make informed decisions. These resources are designed to support your technical understanding, highlight industry best practices, and demonstrate how HULK Metal's expertise ensures reliable lifting solutions.
In addition to Combination Ring Clutches, HULK Metal supplies a full range of precast concrete accessories, including spread anchors, lifting sockets, lifting loops, dog bone lifting eyes, ring clutches, and two-hole anchors. Each accessory is manufactured with strict quality control and certified to international standards, ensuring compatibility, safety, and durability. By providing a complete selection of lifting solutions, we help bulk buyers simplify procurement, reduce costs, and improve efficiency in construction projects.
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.
Durable precast concrete double head lifting pin anchors from HULK Metal ensure secure lifting, higher safety factors, and corrosion resistance, meeting CE and ISO 9001 standards for demanding construction applications worldwide.
Durable, CE-certified spherical head lifting anchors from HULK Metal offer reliable load capacity and corrosion resistance, ensuring safe, efficient lifting for precast concrete projects with fast delivery and quality assurance.
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.
Short Wavy Tail Anchor is a compact, high-strength lifting solution for precast concrete elements. Its wavy rebar tail ensures even load distribution, prevents concrete cracking, and connects securely with threaded sockets or lifting inserts for safe, efficient operations.
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.
Solid rod lifting and fixing sockets embed into precast concrete for secure threaded connections. Crafted from sturdy steel rods, one end features tapping for attachments, while the other includes a hole for rebar passage, enhancing structural integrity.
The combi lifting socket combines a lifting pin anchor and threaded socket, providing a strong, secure connection for lifting and handling precast concrete elements in construction and infrastructure projects.
HULK Metal's Flat End Fixing Socket with Cross Pin integrates a robust cross bar to improve load stability. Manufactured to CE and ISO 9001 standards, it ensures exceptional strength, corrosion resistance, and reliability for various precast concrete lifting applications.
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.
HULK Metal manufactures durable solid rod fixing sockets with cross pins and inserts with cross bars for precast concrete. CE and ISO 9001 certified, with high safety factors and quick delivery for bulk orders.
HULK Metal offers premium flat end lifting sockets designed for safe and efficient handling of precast concrete elements. Manufactured from high-strength alloy steel and certified to CE and ISO 9001 standards, these lifting inserts provide exceptional load capacity and corrosion resistance.
HULK Metal's tubular lifting sockets, made from high-grade steel or stainless steel, provide secure threaded connections in precast concrete. CE certified and precision manufactured, they ensure reliable lifting performance, excellent durability, and meet strict safety requirements for diverse construction applications.
The Long Wavy Lifting Socket combines a threaded steel pipe with a wavy-tail rebar to achieve deeper stress transfer in precast concrete. Designed for heavy-duty lifting, it meets CE and ISO 9001 standards and ensures a 4 times safety factor.
Q345/20#/Stainless steel/Others
Galvanized/Black
8~52
≥3
Flat plate lifting sockets embed into precast concrete for secure lifting points. The design includes a threaded end for clutch attachment and a broad base for load distribution, available in galvanized finishes for added durability.
Flat end fixing sockets, also known as flat end fixing inserts, anchor securely into precast concrete for fixing. Made from sturdy steel, they feature a flat end for easy installation and a threaded interior for bolts.
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.
Room 901, Intelligent Park A Building, No. 86 ChunYang Rd, Qingdao, China 266109
© 2025 HULK Metal All Rights Reserved. All Rights Reserved.
