ACRA MACHINERY -Durma HRB 3 Roll Hydraulic Plate Rolls

Heavy Duty Motorised 3 Roll Bending Machines from 6mm to 30mm Capacities.

Motorised Hydraulic 3 Roll Bending Machines. All rolls are driven with a combination of hydraulic motor(s) and planetary gear box(es)and are bearing mounted. The machines have a Hydraulic drop end with easy pull out system and come standard with a digital readout control unit.
Also avaliable in the HRB-3V Series.HRB-3V machines have Lower Rolls which move horizantally to the right and left in conjuction with the Top Roller moving up and down.
Note: Values given are based on 240 N/mm2 yield point material.
*ØDmin=Ødx2(Pre Bending); Ødx4 (Bending). Conical bending capacity can be taken half of the above values.

Standard Features

*Control unit with digital readout
*Conical bending
*Induction hardened rolls
*Side rolls positioning from electronically synchronised PLC
*Rigid Bottom roll mechanically synchronised
*Stress relieved steel contruction body
*Rolls seated with bearings
*Top roll hydraulic opening device
*Top rolls hydraulic motor driven and planetary gear box
*Side rolls hydramotor, diameter 360 and above gear box plus hydramotor
*Electrical and hydraulic protection against overloads


Optional Features

*Polished Rolls
*Variable speed control
*Oil Coolant
*Side supports at both side
*Vertical support crane system (mechanical or hydraulics)
*Material feeding table
*Changeable top Roll for smaller diameters
*Longer rolls for profile bending
*Welding possibility on the machine
*Preparation for Vertical support crane system