Products Introduce This kind of double drum cable electric pulling winch is most commonly used winch in construction site or workshop, etc. And power supply for the electric winch varies from 110v-440v/50 or 60HZ according to different countries' situation, and the rated speed of wire rope on the drum is 2m/min ~ 20m/min. Features Slow speed, steadily working. Light duty, compact design, beauty and reasonable price. High strength component, durable and reliable.