When it involves toughness and dependability, chain slings are the bulldogs of lifting slings. They are often used to lift very heavy and bulky loads on a daily or repetitive basis, so it’s important they are strong, durable and tough. Their flexible design provides strength and sturdiness so they will withstand impact, extreme temperatures, and exposure to chemicals and UV rays.
Chain slings are often preferred in high-temperature applications and for lifting heavy-duty loads. Their strength and sturdiness mean they work well in steel mills, heavy machine shops, and therefore any other environment where repetitive lifts or harsh conditions take place. Remember, most harsh environments would damage or destroy a wire rope sling or synthetic nylon or polyester sling, so a chain sling often reigns supreme. If any damage does occur on a chain sling, they’re completely repairable and should be load tested-and re-certified after the repair.
Chain slings are often heated to temperatures of 1000°F, however, the Working Load Limit must be reduced in accordance with the manufacturer’s recommendations when continually exposed to temperatures above 400°F. Chain slings are often configured in single-leg, 2-leg, 3-leg, and 4-leg designs. They can be configured to be used in vertical, choker, or basket hitches and a selection of varied sling hooks, lengths of chain, and master links are often used to create different sling assemblies for various applications.
While there are many different kinds, steel grades such as 63, 80, and 100 are normally recommended for overhead lifting. You can find grade 8 chain slings here. In some applications, chain slings made up of material apart from steel could even be used. These applications involve a corrosive or high-temperature environment. The chain material in these unique applications is typically stainless steel or another special material chain.
Advantages of Chain Slings
• High-strength, durable, and versatile design holds up to the harshest operating environments.
• Completely repairable by replacing individual chain links or segments.
• Chain slings are easy to re-certify within the event they’re repaired to a high standard.
• They can be used at relatively high temperatures and in hazardous environments where other slings would be damaged or destroyed.
• Resistant to corrosion, chemicals, and UV exposure.
• Not damaged or ruined by dirt, oil, or grease
• Will elongate 15-20% when overloaded to supply a very clear indicator that they have been overloaded.
Disadvantages of Using Chain Slings
• They are very heavy – the upper the ‘WLL’ is, the heavier the chain will be.
• Can be pricier than wire rope or synthetic.
• Can easily damage or crush sensitive parts or components, so must be used with care.