Lifting Clutch

Lifting Clutch Brief Introduction:

The lifting clutch is also called the DogBone Lifting Clutch. It consists of the main body with a protruding lever arm and a high-strength bail. The main body has a "T" slot that engages the head of a DogBone lifting Anchor. The combined rotation capabilities of the main body and the bail allow a precast panel to be lifted, turned, tilted, and/or rotated while under load. The GME Ring Clutch consists of a shackle and a clutch head; the shackle is free to move in any direction.

The clutch in each load group matches the shape of the recess former and incorporates a locking bolt that engages in the head of the cast-in lifting anchor. The Ring clutches are matched to the lifting anchors by compatible design as well as by marking the anchor types and load groups. Only matching components will fit together

 When the head of the lifting clutch is inserted into the recess and anchor head, the bolt will lock down the anchor from the head of the lifting clutch. The lifting clutch casting head needs special head treatment to improve mechanical behavior. The forged bolt needs the same materials as the head. The lifting clutch hook was made with enough thickness and high-strength steel. The lifting clutch hook needs high-quality and deep approval with X-ray machinery.

What Materials Are Made of a lifting clutch?

By Precision Casting and Forged, GME Precast produced a CE-certified lifting clutch (ring clutch) with a high-grade 35CrMoV special casting head clutch and forged bolt, to ensure stable quality and high performance. Super Cast Alloy Locking Ring. Lifting Ring is Forged Alloy Steel. 100% Crack Tested. Safety Factor 5:1.

Concrete Lifting Clutches have been exclusively designed and approved for use with Lifting Anchors.

● They are available in a range of Working Load Limits.

● They have been designed so that they cannot spontaneously disengage whilst the system is under load at any orientation, provided they are connected to the head of the correct anchor in the recess. When the lift is complete and the load released, the clutch is quickly and simply disengaged.

● Identification markings are required for the Lifting Eye to comply with AS 3850 – 2003.

● The Lifting Eye must be proof load tested every 12 months by AS 3850–2003.

● The Lifting Eye has a FOS (factor of safety) of no less than 5 by AS 3850 – 2003.

Surface Treatment and Protection for the Clutch:

self-colored and protected with Hot-dipped galvanized, electro galvanized, and Spray Painting, such as yellow, depending on customers' detailed requests.

Marked with Brand, Working Load Limit, Batch Number, traceable on quality, and very useful for workers' operations. Special specifications and marks can be made according to customers' requirements.

US Standard Lifting Eye Dimension and Specification (Suitable for ALP Lifting Pin Anchor)

Style1: Lifting Clutch

Style2: Ring Clutch

The rated load has a 5:1 safety factor.

Chinese Lifting Clutch Dimension and Specification (from GPS):

 How to Use the Precast Lifting Clutch and Lifting Anchor to Lift the Panel?

①Lifting clutch for precast concrete is attached to the lifting anchor by lowering the clutch slot over the anchor, and then rotating the clutch tab until it rests on the concrete surface.

②The load is raised, and the anchor takes the full tension.

As the panel rotates to the vertical position, the clutch comes in contact with the concrete surface; this transfers the lifting force into the concrete. The anchor prevents the clutch from slipping out of the void

④Lifting away from the tab is also safe, provided the tab does not rise more than 30° from the concrete surface.

How Do You Inspect And Maintain The Lifting Eye And Lifting Clutch Regularly For Safety?

All critical dimensions are unique to GME-engineered and manufactured components and verified through testing.

Clients must determine an inspection program based on the frequency of use.

The Lifting Eye or Lifting Clutch may be exposed to mishandling, overloading, wear, and any other factors that may contribute to adverse effects on the lifting eye's allowable load ratings.

Thus, it is pertinent that the lifting eye is inspected by a designated person regularly to evaluate its general condition and degree of wear.

• Lifting Eyes or Lifting Clutch must be inspected immediately after returning from job sites.

• Additional general inspections should be conducted periodically, depending on the frequency of use.

• Lifting Eyes that don't meet the below inspection criteria should be immediately discontinued from use and destroyed. Inspection documents should be filed for the life of the Lifting Eye.

Lifting Eye Lifting Head, Bail and Bail Loop – Chart – Critical Dimensions Check

Cooperation Case

Company	Product	Time	Picture
SteinBauer LLC	lifting system	2022-01-05
CORE TECH INTERNATIONAL CORP	7000KG lifting system	2023-01-31

 

Application of Lifting Clutch

Usually, the lifting clutch is used together with lifting anchors in precast concrete factories to lift precast concrete walls, precast concrete slabs, stairs, and other precast components. It can greatly save manpower and material resources. It is usually used in conjunction with lifting anchors.

Lifting Clutch vs Other Systems table

What is Our Production Advantage of the Lifting Clutch?

Innovation & automation - Our core competency, Production Capacity

15 years of experience, workshop area 15,000 square meters, 60% semi-automatic & 30% house-made machinery.

The regular material stock of US$ 1.5 million is ready for urgent demand as we manufacture 20+ well-known brands on an OEM basis.

Production Technology

With just 1 stroke, both head & foot are forged, even for the double head, 3x faster, saving 60% heating energy, and much better precision.

Automation + the advantages of the high-speed drilling & thread tapping, 3x faster, and better quality assured.

Automatic welding ensures a zero failure rate and high efficiency.

Tooling workshop: 20+ CNC machines: All the molds & special machinery are made in-house, and highly efficient.

Sample Room

What Inspection Items will Operate on the Lifting Clutch?

GME's approach to quality control is designed to ensure optimal product quality, strict adherence to your design, and a reduced cost to you. From the first article sample submission through to full production, our QC staff is always on the lookout for ways to improve product quality. We continually address manufacturing processes and material concerns, and enhance staff expertise to ensure the highest quality products.

We Provide the Inspection and Testing Items Below

Tensile/ Proof Load Testing, Impact Testing, Metallographic Testing, Balance Testing, Temperature control testing, Ultraviolet spectro-photo testing, Dimensional Testing, Appearance Testing,

Mechanical Testing, Tolerance Analysis, Tooling Life Analysis, Hardness Testing, Hot Dip Galvanizing Plating Thickness per ASTM, Roughness Testing, OEM Packing.

Comprehensive Labs

2x100T testing machine + Oxford Metal Spectrum meter + Regular lab equipment

Inspection & Packing workshop: Final inspection and standardized packing w/t pallet collar.

Highly efficient Management Powered by Sage X3 ERP

Sage X3 manages the production and QC, from raw materials to the finished products.

What is the Lifting Clutch Production Process?

Defective Product Bulletin Board, Workers Pick up the Defective Product when Operating：

The Steps to Inspect?

1. Prepare Lift Eye for Inspection

Before the inspection, the Lift Eye should be cleaned to ensure any cracks or damage can be seen by the inspector.

2. Visual Inspection of Bail

Visually inspect the bail for any splitting, cracking, deformation, bending, applied heat, or damage to the welding.

If the Lifting Eye fails any of these criteria, it must be removed from service.

3. Measure the Bail and Bail Loop

Dimensions B and H are found in the Chart on the page.

These measurements must meet minimum requirements for the Lift Eye to pass inspection.

4. Visual Inspection of Lifting Head

Visually inspect the lifting head for any splitting, cracking, deformation, applied heat, or damage.

If the Lifting Eye fails any of these criteria, it must be removed from service.

5. Measure the Lifting Head

Dimensions D and G are found in the Chart on the page.

These measurements must meet minimum/maximum requirements for the Lift Eye to pass inspection.

Certification of the Lifting Clutch:

We will issue relevant test reports before each batch of goods is sent to the customer's location.

Why Choose Us? 

Professional Experience: As a leading supplier of formwork magnets and precast concrete magnets in China, we have rich experience in providing a wide range of formwork magnets and precast concrete industrial magnets. We work closely with professional factories to meet your needs in every aspect, from design to final product.

Competitive Price: We offer very competitive prices for magnetic products and can deliver goods directly from the factory to your door. Our prices are transparent and aim to provide the best value for your business.

Quick Response: Whether you are already our customer or not, we promise to provide online support within 12 hours (usually faster). We are committed to responding to your inquiries and needs quickly to support your business development.

Top Partner: We have established good relationships with the top 10 precast concrete accessories suppliers in China in Ningbo and Qingdao, so we can provide you with the best quality, best prices, and fast delivery.

Strict Quality Control: We strictly follow the 6S system and refer to the TS16949 standard system. We have established a complete quality control system, from sample development to order completion, and all processes are controlled by a perfect quality control system.

Wide product range: Our range of precast concrete accessories includes lifting systems, fixing systems, and connection systems to meet your diverse needs.