KRM ST 20/7 - Motor-driven rollers with large working width and motorised rear roller adjustment for processing heavy plate
KRM ST 20/7 - Motor-driven rollers with large working width and motorised rear roller adjustment for processing heavy plate

KRM ST 20/7

SKU : 130782

The models in our KRM ST series take on bending work on workpieces up to 3000 mm (118 in.) in length. The heavy, medium-capacity round bending machines have a solid, closed machine frame and a motor-driven rear roller. Conical bending and pre-bending are among the features that allow you a wide range of applications for individual production in metalworking, steel and metal construction.

  • Asymmetrical structure
  • Motorized drive with 4 kW
  • Hardened rollers
  • Conical bender
Working area
Working length 2050 mm
Plate thickness (max.) - 450 N/mm² 7 mm
max. plate thickness with prebending 6 mm
max. plate thickness with prebending (Stainless steel) 2,5 mm
Max. plate thickness for conical bending 2 mm
Bending diameter (min.) 285 mm
Roll diameter 190 mm
Drive capacity
Motor rating main drive 4 kW
Measures and weights
Overall dimensions (length x width x height) 4,2 m x 0,95 m x 1,3 m
Weight 3100 kg

  • Plate bending machine with heavy, closed machine frame and motorized back roll infeed for applications in locksmithery, steel and metal construction
  • Equipped with asymmetric roll arrangement, the machines of this series are suitable for heavy plates
  • The back roller is manually feedable, optionally the feed can also be motorized
  • The crowned rolls are made of high quality steel and are hardened and therefore also suitable for processing stainless steel
  • There are wire insertion grooves in the lower and rear rollers
  • The powerful electric motor integrated in the base frame drives the upper and lower rolls via a reduction gearbox
  • The direction of rotation is controlled by the operator via a foot switch on the separate control panel
  • An electromagnetic brake prevents overrunning and allows full control in every phase of the bending process
  • The rear roller is also motorized and a scale indicates the set position, a digital display is available as an option
  • The upper roller can be folded up to facilitate the removal of the workpiece
  • For conical workpieces, the rear roller can be adjusted to one side by loosening the coupling on the torsion shaft
  • A stable side bearing absorbs the high forces that occur when machining conical workpieces
  • Central lubrication facilitates maintenance and guarantees reliable functioning of the machine

Back roll with motor SKU:
Back roll with motor
Back roll with motor SKU:
Conical bending feature
Conical bending feature SKU:
  • Conical rolling is achieved by decoupling the shaft connecting the rollers
  • The capacity of the machine is lower when performing conical bendings
Hardened rollers
Hardened rollers SKU:

Facilite the rolling of harder materials like stainless steel

Emergncy stop safety rope
Emergncy stop safety rope SKU:

Machine will stop if the operator enters the safety perimeter

Separate control panel with foot switch
Separate control panel with foot switch SKU:
Operator instructions
Operator instructions SKU:

Resources & Downloads

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KRM ST 20/7 - Motor-driven rollers with large working width and motorised rear roller adjustment for processing heavy plate
KRM ST 20/7
SKU : 130782
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