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Shackles
A lifting shackle is an essential connecting accessory that ensures a secure connection between different pieces of equipment. Used with slings, hooks, or lifting eyes, it guarantees stability and safety when handling loads.
Forankra offers a complete range of shackles available in stainless steel and compliant with professional standards, designed to meet all lifting and securing needs:
- Straight shackles
Ideal for aligned loads, they are primarily used for simple setups with minimal lateral stress. - U-shackles
Thanks to their rounded shape, they allow for better distribution of forces and are particularly suitable for lifts using multiple slings or at angles.
FAQ – Lifting Shackles
What is a lifting shackle?
A lifting shackle is a connecting device used to securely attach various pieces of equipment, such as slings, chains, or cables, to a load or an anchor point. It consists of a metal body (straight or U-shaped) and a locking pin, ensuring a reliable connection during lifting operations.
What is the difference between a straight shackle and a U-shaped shackle?
Straight shackle: suitable for direct-line lifting, with a single direction of pull
G-shaped shackle: ideal for multi-leg or angled lifts, thanks to its rounded shape
The G-shaped shackle is generally more versatile, especially when multiple slings are used
How do you choose the right lifting shackle?
The choice of a shackle depends on several key criteria:
- The load to be lifted (WLL)
- The type of lift (single-leg or multi-leg)
- The environment (humid, corrosive, industrial, etc.)
- The type of pin (screwed or bolted)
It is essential to select a shackle with a capacity greater than the actual weight of the load to ensure safety
What is a shackle’s WLL?
The WLL (Working Load Limit) corresponds to the maximum load that the shackle can safely support. This value is marked directly on the product and must be strictly adhered to in order to avoid any risk of breakage.
What is the difference between a screw-in pin and a bolted pin?
Screw-in pin: quick to install, ideal for occasional use
Bolted pin with a cotter pin: more secure, recommended for permanent installations or those subject to vibration
The choice depends mainly on the frequency of use and the required safety level
Can a shackle be used with an angled load?
Shackles are designed for use in the centerline. An angled or lateral load can reduce their lifting capacity and increase risks. In this case, it is necessary to adjust the working load limit (WLL) or use an appropriate configuration.
How do you check the condition of a lifting shackle?
Before each use, it is recommended to check:
- For cracks or deformation
- The condition of the pin thread
- For wear or elongation of the contact points
- The legibility of markings (WLL, standard, manufacturer)
- A damaged shackle must be removed immediately.
In which environments should a stainless steel shackle be used?
Stainless steel shackles are particularly suitable for the following environments:
- Marine
- Humid
- Chemical or corrosive
They offer excellent corrosion resistance and ensure greater durability under these conditions.
Are lifting shackles subject to regulations?
Yes, shackles must meet strict standards (such as EN 13889) and bear mandatory markings: working load limit (WLL), CE conformity, manufacturer, etc. They must also be inspected regularly as part of periodic inspections.
How often should a lifting shackle be inspected?
A visual inspection performed by a qualified professional must be conducted before each use, supplemented by mandatory periodic inspections in accordance with current regulations. This helps prevent risks associated with wear and tear or misuse.