... : 20(30)m/min2.Features:It's smalll lifting equipment with tight structure, small volume and light ... quality long time bearing polyurethane materials buffer.3 Crane traveling limit switch.Voltage lower protection function.Emergency ... model with general speed can satisfy common lifting;MD model has two lifting speed :general speed and slow speed, ... /415v/440v380V,50HZ/60HZ, Electric hoist crane equipment