Flow Forming Machine

Leifeld ST 650 H Series

The LEIFELD ST 650 H Series is designed for heavy-duty forming of long rotationally symmetrical hollow bodies with constant or varying wall thickness by flow forming via cylindrical, conical or embossed mandrel contours. Close tolerances and highest repeatability can be reached.

The machine is applicable for forming processes like forward flow forming, reverse flow forming and shear forming. A wide range of workpieces can be manufactured on this machine from most different unmachined parts or preforms and materials.

Main Characteristics

  • Extremely sturdy and torsion-resistant frame construction
  • Axially pulling feed with two diagonally positioned, synchronised ball screws spindle
  • Electrically positionable tailstock with ball screw drive
  • Loading and unloading can be performed by robots
  • Maximum flexibility in the production of lengths, external diameters, wall thicknesses and reduction

Technical Data

ST 650 H 1300
ST 650 H 2100
ST 650 H 3100
Workpiece-Ø, min. 65 mm 65 mm 65 mm
Workpiece-Ø, max. 650 mm 650 mm 650 mm
Workpiece length, max. when      
- Forward flow forming, approx. 1,200 mm 2,000 mm 3,000 mm
- Reverse flow forming, approx. 2,400 mm 4,000 mm 6,000 mm
Distance between centres, min. approx. 2,200 mm 2,200 mm 4,430 mm
Distance between centres, max. approx. 3,550 mm 4,350 mm 7,580 mm

* by 50 % reduction of wall thickness with lateral tailstock displacement

End products

  • highly stress-resistant pipes
  • hydraulic cylinders
  • engine parts
  • pressure tanks
  • casing tubes
  • fuel vessels

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