How to choose your chain sling?

1. Determine the lifting capacity needed.

• What is the weight of the load to be lifted?
• Identify the center of gravity of the load to be lifted.
• What is the lifting capacity of the equipment available (crane)?

2. Define the number of strands needed.

• How many anchor points are there on the load? 1, 2, 3 or 4?

Reminder: when slinging on 4 legs, a maximum of 3 legs are considered to be bearing, the fourth leg only intervening for balancing.

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3. Choose the chain grade.

• 50, 80, 100 or 120.

For ergonomics and working hardness reasons, increasing the chain grade of your sling enables &#; for an equivalent chain diameter &#; to benefit from a higher lifting capacity. The weight of your sling will therefore be lower.

4. Calculate the length of the sling.

This step is crucial because the length determines the working angle of a multi-leg sling.

The greater the angle, the greater the stress on the sling ring, and the greater the angular load loss on each leg.

• The length of the strands should be determined in such a way as to keep an optimal angle of the strand with respect to the vertical axis between 0 and 45.
• Attention, beyond 45°, take into account the pressure drop.
• Above 60° it is forbidden to carry out the lifting operation.

5. Define the sling termination.

• Hook with automatic locking, swivel, latch&#;

You must ensure compatibility between the accessories of your sling and the external elements that will be connected to it (hoisting device hooks, anchorage on the load, etc.).

6. Determine the options.

• The use of shortening clutches: to adapt the length of the sling legs to suit to make it more versatile and adapted to the part to be lifted.
• The possibility of optionally affixing your own traceability to the sling.

Customizing slings offers you many advantages. Many customization or custom manufacturing solutions are possible by calling on PMS Industrie, a French manufacturer. Contact us to find out more.

Whatever your lifting configuration, be sure to use your sling in accordance with the manufacturer&#;s instructions.

Today, there are six different types of lifting slings used in industrial and construction undertaking. The various classifications of the lifting slings include wire rope slings, synthetic rope slings, chain slings, web slings, and metal mesh slings. Choosing lifting slings should be based on the size or type of the load, as well as the environmental conditions of the workplace.

Chain slings are among the most versatile and durable pieces of heavy lifting equipment. They are easy to repair and fit a wide range of purposes across every industry. When choosing a chain sling, consider one that is strong enough to manage the loads you have in mind.

Overloading a chain sling can damage the equipment and possibly cause injury in the workplace. Such injuries lead to staircase accidents, ranking as the second leading cause of accidental injury after motor vehicle accidents. The following guide is useful in selecting the appropriate chain sling.

Size of the Load

When selecting a chain sling, settle for one that will handle the size of the load you intend to lift. Generally, chain slings are robust, dense, and extremely durable. They are suited to lift most types of loads in various applications, regardless of the size or weight.

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Since chain slings can handle heavy-duty lifting, they would be ideal for use in steel fabrication and shipbuilding. You can also customize a chain sling to allow on-site adjustments to fit your every requirement. Their versatility and durability make them a great choice.

The alloy steel chain slings are durable and can adapt to the shape of the load. Therefore, it is crucial to note that sudden shocks can damage the alloy chain slings. Misuse of the chain sling can result in sling failure and possible injury to workers or damage to the load.

Durability in Extreme Temperatures

The chain slings are best suited for very rugged environments and tough jobs. They can withstand up to 1,000 degrees Fahrenheit. They are perfect for use in steel factories, heavy machinery and equipment workshops, and other environments with extreme conditions.

A chain sling can withstand heat and lift heated materials without melting, breaking, or weakening. If you are dealing with high service temperatures, choosing lifting slings that are resistant to abrasion will prove essential. You can use chain slings as they are less likely to cause heat-induced damage.

One of the outstanding features of a chain lifting sling is its ability to maintain integrity under extreme temperatures. Even so, it is vital to ensure safety and stay well within the working load limit. Users need to observe working load limits according to the manufacturer&#;s recommendations.

Sling Ratings

Most lifting slings in the market have industrial ratings, which show the specific conditions of use. The specific details may include a specified environment or temperature, how the sling is to be attached to the load, and operational requirements.

Any variation in any of these conditions will call for the necessary adjustments. If the sling ratings are inconsistent with your needs, it could pose a potential hazard.

Safety should always be a primary concern during the entire project. Ensure you get a chain sling that meets the sling ratings and is in line with your needs.

Lifting Points

When choosing a chain sling, it is essential to consider the lifting points on the load. Without correct lifting points, you will have to come up with other ways of attaching the chain sling to it.

In case your chain sling has threaded holes, check that the holes are big enough to bear the entire weight of the load. Where the lifting points are absent, it is only logical to select a chain sling that can pass through the aperture in the load. You can also go for a chain sling suitable for wrapping around the load.

Conclusion

When it comes to choosing lifting slings, chain slings are the most versatile option. Selecting a dependable chain sling is a crucial step towards ensuring the safety of all who use it.

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