1.building electric windlass capacity 1T to 50T 2.rope speed:10-30m/min 3.with long ropes 4.lift and pull electric windlass building electric windlass. JM-series electric slow speed electric windlass for large equipment lifting and pulling in mine, marine, construction site, shipyard, slipway, plant and so on..There are two type in this series, small pull capacity and large pull capacity. Large ...