Hydraulic 3 rolls plate bending machine with complete pre-bending and variable axis

Currently our engineers can adapt this versatile machine to each particular request of the customer, making it fully customized. Indeed, the DEA 3R is a machine suitable for every production requirement of our customers, such as special steel plates, pre-tension plate rolls, and the need of NC control.

DEA 3R is a very special machine because it has the bottom rolls that move on a horizontal axis and regardless to each other with variable steps, and at the same time the motorized roll top, moves on a vertical axis, and this allows it to work, thanks to its high flexibility, at the same time both as a 4 rolls machine, vertical or planetary guides. The Variable Geometry of DEA 3R enable to:

  • Be an ALL-AROUND and ADAPTABLE machine: increasing the distance between the bottom rolls and maintaining the same pressure of the top roll, we are able to bend big thickness; decreasing such distance we are able to bend thinner sheets;
  • Increase the CAPACITY IN CONES PRODUCTION: with regular rolling process is possible to obtain 65% of nominal capacity in cones production, using the Top Roll as a “Press” is possible to achieve 100% of the machine capacity in cones thickness;
  • Make a SHORTER FLAT-END DURING THE PRE-BENDING compared to the standard 4 rolls plate bending machine, this because this Plate Roll can work as a «Press» and keeping a very close gap between the side and top roll (closer than any other style of plate bending machine).


  • Exclusive Sertom P.B. translating geometry design “DEA 3R” type
  • Fully electronic – hydraulic machine
  • All rolls are placed on bearings on orientable double crown of rolls
  • Three rolls with adjustable position through hydraulic cylinders
  • Rolls in special carbon steel C45-C50 forged and hardened and quenched
  • Motorized top roll with 1 hydraulic planetary gearbox unit + 1 hydraulic motor
  • Side rolls with automatic brake to avoid plate sheet from slipping
  • N° 2 preset rolls rotation speeds, pre-selectable with selector
  • Easy system for top roll exchange
  • Electronic balancing system on the rolls (with regulation automatically checked by PLC SIEMENS)
  • Electronic tilting on the top and the side rolls for conical production directly from control panel
  • The machine is pre-set with an operative Touch Panel type SIEMENS KTP1200 PN, with coloured display of 12” touch.
  • System to check and drive PLC via modem
  • Hydraulic unit consisting of motor pump groups, solenoid valves, max pressure by-pass valve
  • Air cooling system for hydraulic oil
  • Hydraulic components Bosch – Rexroth, Hawe, Parker e Hydac or equivalent
  • Hydraulic drop end opening to allow produced tube removal in horizontal position
  • Automatic centralised lubrication with pre-settable cycles from the touch panel
  • All controls conveniently located on an independent control console
  • Low voltage at the controls on mobile control panel, 24VDC
  • Electric components Siemens or equivalent
  • Mechanical pre arrangements for lateral and top supports
  • Warning and diagnostic visualization on the display
  • Electric motors to power the hydraulic pumps
  • Standard working temperature: (+15°, +35°)
  • Safety device with immediate stop of all movement
  • Machine manufactured according to the “CE or UL or CSA” rules certified;
  • Instruction manual

Gallery DEA 3R