... double drum wind. 2,applicable for free fall punching and piling 3,mainly use in construction site,mine,port, ... port, especially suitable for free fall punching & piling for bridge, dock, construction works and so on.This winch can operate by ... hand and motor, it can be hand controlled without ... mm3800×2375×17002935×2080×1550Machine weight KW70005000 punching and piling hoist