Category - chain hoists

Electric chain hoists and motorized winch systems require strict adherence to ANSI E1.6-1 and ASME HST-4. This article covers entertainment vs. industrial hoists, WLL calculations, dual limit switches, E-stop requirements, performer flying (ANSI E1.43), and the annual inspection and load-test program.

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Not all chain is safe for overhead rigging. This article covers chain grades (80, 100, proof coil), why unmarked chain is retired, entertainment-rated vs. industrial hoists, load chain inspection and retirement criteria, sling angles, and the documentation program for chain in theatrical facilities.

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