These theater or studio lighting bar winches came from the old Ch 10 Adelaide studios when they relocated about 2 years ago. They are of the double drum spiral groove type and are also suitable for heavy curtain automation, 3 phase with limit switches.
The motors are Siemens 1hp units with brake.
Each winch has 2 drums and each drum will hold about 10m of wire.
The price also includes the steel cables, 2 way bridles, and pulley blocks from the original installation.
Each drum holds 10m of cable and you get 2 lines per winch,
the same drums can be used in and endless configuration for operating heavy curtains.