Vertical 3-roller forming

The vertical 3-roller flow forming machine VSTR 150/3 is special designed for the production of high precision thin-walled tubes and other hollow work pieces with symmetry of rotation, of constant or variable wall thickness. The machine allows the flexible production of by using the forwarder backward-flow forming method. The stable, vertical machine design offers the following distinctive advantages against machines built in conventional horizontal design:

  • excellent self centering capability of the 3-roller flow forming support due to his vertical position
  • during the forming process, the flow forming support, the tooling and the tailstock sleeve stay
  • perfectly in position; this is due to the fact that their positions are not affected by the gravity force


  • vertical, stable machine design with complete enclosures
  • minimal space requirements due the vertical machine design
  • 3-roller flow forming support with 4 axis CNC-control
  • electric drives for all feed slides
  • roller guideways pre-stressed, free of clearance and pre-stressed installed onto all feed slides
  • internal and external hydraulic ejectors on the main spindle
  • well prepared for the addition of anautomatic loading-/unloading deviceor the integration of a robot


  • short cycle time
  • optimum performance related to the accuracies of the flow formed contour and surface quality of the work piece due to the vertical machine design
  • high flexibility by using the most advancd CNC-control
  • high energy efficiency resulting from energy recovery form the electric drives when operating in braking mode


  • Automotive supply industry
  • Aerospace Engineering
  • Military engineering
  • Power / Environmental engineering

End products

  • Thin-walled tubes
  • Rotationally symmetric hollow parts

Technical specifications

Workpiece diameter min. 20 mm
  max. 200 mm

Tool mounting main spindle centering location size 8 in, accordance with DIN 55027

Power of main spindle drive approx. 60 kW

Spindle speed max. 1500 rpm

Vertical force 3-roller flow forming support 150 kN

Vertical stroke 3-roller flow forming support 650 mm

Radial force 3-roller flow forming support each 150 kN

Radial stroke 3-roller flow forming support 150 mm

Clamping force tailstock cylinder m100 kN

Power hydraulic station approx. 30 kW

Machine weight 12,500 kg

Do you have any questions regarding the product? Need specific information on the machine or for the production of parts?
Contact our sales department. We will be glad to help you.
Tel +49 2526-9302-10 or email:.

VSTR_150/3 [.pdf]