A Guide to Chain Slings


In the video above, the reporter discusses the fascinating process of manufacturing chain slings, highlighting their versatility as essential lifting tools. These slings are crafted meticulously from high-quality grade 80 and grade 100 alloy steel chains in a controlled environment. The manufacturing process begins with the precise measurement of the chain, which is then cleanly severed using a high-pressure hydraulic cutting machine to eliminate the risk of heat damage.

Once the chain is cut, the reporter explains the installation of grab hooks on each end, ultimately resulting in a 20-foot-long chain sling.

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The cold-cutting process is emphasized for its role in preventing heat damage to adjoining links, a common issue with cutting torches. The reporter details the final steps, including the installation of a grab hook in the correct orientation, securing the load pin with a keeper, and tracking each chain sling in a comprehensive database until retirement.

The manufacturing process concludes with a proof load testing phase, where each chain sling undergoes testing on a hydraulic incline proof testing machine generating up to two hundred twenty thousand pounds of force. The sling’s ability to stretch between five to ten percent under a calculated load is highlighted as a crucial quality check, ensuring its durability and safety in normal use. Concluding, by discovering crafting durable chains with precision and quality.

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