3.5.3 Slack Chain Anchorage

Some standards require the slack end anchorage for the load chain to be at least equal in strength to 2.5 times the maximum tension in the load chain when the WLL is being lifted. While others also require the free end of the chain to be fitted with a chain end stop to prevent the chain passing completely through the hoist. This stop must be able to withstand 2.5 times the tension in the chain when the WLL is being lifted. These requirements are an important safety feature and should be considered as the minimum for hoists of all ages. If the user inadvertently runs the chain fully out and the slack end anchorage is not adequate, the chain will easily continue through the hoist and drop the load. It is therefore important to select hoists that have slack end anchorages or chain end stops.