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 5 hp
  • Hardened rollers
  • Conical bender
Working Area
Working length 81 in
Plate thickness (max.) - 450 N/mm² 0.276 in
max. plate thickness with prebending 0.24 in
max. plate thickness with prebending (Stainless steel) 0.1 in
Max. plate thickness for conical bending 0.079 in
Bending diameter (min.) 11 in
Roll diameter 7 in
Drive Capacity
Motor rating main drive 5.4 Hp
Measures and Weights
Overall dimensions (length x width x height) 166 in x 38 in x 52 in
Weight 6820 lbs

  • 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

Emergency stop lanyard
Emergency stop lanyard 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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