... ,double drum wind. 2,applicable for free fall punching and piling 3,mainly use in construction site,mine,port,dock,bridge ... is mainly used for hoisting heavy cargos in construction site, factory, mine, port, especially suitable for free fall punching & piling for bridge ... dimention mm3800×2375×17002935×2080×1550Machine weight KW70005000 punching and piling hoist