Parmigiani 3-Roll Plate Bending


Parmigiani 3 Roll PCO

TAS Model shown above
  • TBH Series
  • PCO Series
  • TAS Series

3-roll plate bending rolls TBH Hydrotronic


Parmigiani 3 Roll

3-Roll Double Pinch Plate Bending Rolls type TBH. Fully Hydraulic.

Rolls length up to 8.000mm, plate thickness up to 150 mm.

The TBH bending machines are equipped with the exclusive Parmigiani Parallelism System (PPS) for rolls parallelism control (closed ring type).

The PPS assures the max precision in rolls positioning also after several years of intensive work.

Rolls rectilinear slideways coated with antifriction material (AVG System).

(No maintenance; High loading and carrying capacity; Smooth and stable positioning).

All rolls (mounted on roller bearings) are driven by separate hydraulic motor for each roll.

CNC is available on request.

Main technical characteristichs of TBH Hydrotronic:

  • Machine uprights with heavy-duty RECTILINEAR GUIDE for lower rolls traslation.
  • Bending Rolls support with antifriction material in sliding area.
  • N° 3 driving rolls by n° 3 hydraulic motors + 3 planetary speed reduction gears.
  • HMB Heavy Multi Bearings System for rolls support and rotation (4 heavy-duty bearings for roll; 2 at each side).
  • Bending rolls synchronisation and balancing control fully electronically controlled by a SIEMENS industrial unit.
  • Stepless variable tilting (from control panel) of the two lower rolls on both way, positive or negative.
  • Lower rolls tilting from operator control panel.
  • Hydraulic opening of the turn-bearing for shell unloading.
  • Safety against the opening of the turn-bearing when lower rolls are under pressure.
  • Large rolls diameter for minumum deflection.
  • Multi-system safety device for instantaneous stopping of all movements.
  • Mobile (on whells) push-button operator control panel, with low voltage controls.

Optional equipment available on TBH Hydrotronic

  • Cone bending device
  • Vertical plate supporting device (top bridge)
  • Lateral plate supporting device
  • Rolls induction hardening and heat treatment
  • Extended rolls for assembling profile bending dies
  • Set of profile bending dies
  • Rolls grinded or polished after induction hardening treatmen.
  • Infeed conveyor
  • CNC control
  • Special device on customer demand

3-roll plate bending rolls PCO Hydrotronic

Parmigiani 3 Roll PCO

3-Roll Double Pinch Plate Bending Rolls type PCO.
Fully Hydraulic. Rolls length up to 8.000mm, plate thickness up to 300 mm.

All Three rolls are hydraulically adjustable.
The top roll is vertically adjustable (up – down).
The two lower rolls are horizontally adjustable
(left – right).

The PCO type is particularly recommended for cold and hot bending of high thickness plates.

To minimize rolls deflection during the bending phase, in the type PCO-SR the two lower rolls are middle-supported by back-up rolls. This allows to obtain the tightest tolerance (roundness and straightness) available in a roll bending process.

3-roll asymmetric plate bending rolls TAS

3-Roll asymmetric plate Bending Rolls type TAS (shown above).
Rolls length up to 3.000mm, plate thickness up to8 mm.

Main technical characteristichs of TAS asymmetric plate rolls

  • Machine uprights with RECTILINEAR GUIDE for rolls traslation
  • N° 2 driving rolls (Top roll and Lower roll)
  • Reduction unit for rolls driving with permanent oil-lubrication
  • Side roll mounted (journalled) on roller bearings
  • Motorized (up-down) movment of the side roll by helical geared speed reduction unit
  • Mobile detached control panel to permit optimum location for operator convenience and safety with electric low voltage push buttons controls complete of:
    • N° 2 push-buttons for rolls driving left-right / Emergency stop push button
    • N° 2 push-buttons for side roll movement (up-down)
  • Electrical control gear housed in a suitable cabinet, placed on the machine
  • Multi-system safety device for instantaneous stopping of all movements
  • Instruction manual; CE marking and declaration of conformity
  • Plate Bending machines type TAS. Optional equipment available:

    • Cone bending device
    • Rolls induction hardening and heat treatment
    • Extended rolls for assembling of profile bending dies
    • Set of profile bending dies
    • Digital read-outs for rolls position
    • Motorized (up-down) movment of the lower roll
    • Special device on customer demand