... disk brake, manual operation valve, etc. One drum for lifting purpose, another drum for OPEN/CLOSE of the Grab.Work load300Ton ... /min @300Ton (2nd layer), 60m/min @150Ton (2nd layer)Drum Capacity for CableL1000m x 4pcs ( total 2 layers)Cable spesificationDia ... for each drum (2nd layer, static)Disk Brake holding load100Ton for lifting drum (2nd layer, static) 300Ton Hydraulic Grab Hoist Winch for ...