Most of the slings available have industrial ratings, which indicate specific conditions of use. Some of the specific details that will be indicated include temperature, load, operational conditions, and how they are attached to the load. Make sure that the chain sling with hoist that you will be getting meets the sling ratings consistent with your needs. If sling ratings and your needs don’t align, this could spell disaster for your workers.http://www.z2-lifting.com/hoist/