CrankStar | Microfinish / Superfinish of crankshafts

Microfinish / Superfinish of crankshafts with the Thielenhaus CrankStar

The average vehicle uses up to 340 litres of fuel per year simply in order to overcome the internal friction in a combustion engine. The requirements placed on the installation of crankshafts are increasing in line with demands for lower consumption, higher performance and sustainability. Compact dimensions as well as precision bearings and sealing seats are, in this regard, important contributors to environmental balance, performance and longevity. The Thielenhaus CrankStar precision crankshaft machining unit is the perfect solution for the challenges experienced by today’s engine manufacturers.

Processing Principle



Thielenhaus Microfinish For CrankShafts

The CrankStar surface precision machining unit is the solution to fulfilling the requirements set today by engine manufacturers: reduced friction coefficients, the greatest level of durability and the lowest possible unit costs. 


  • Significantly increased percentage contact area of the workpiece’s functional surface
  • Reduction of friction
  • Increased service life
  • Reduced wear and energy requirements
  • Lower noise by reduction of waviness

Special Machine Features

  • Modular machine system with 1-X stations
  • Horizontal machine
  • Shortest cycle times with optimised finnishing units and loading system
  • Small size ratio
  • Easy access
  • Easy set-up
  • Loading within cycle time possible


Thielenhaus CrankStar TX

  • Optimised for large-scale production
  • 3- and 4-cylinder crankshafts
  • Length up to 500 mm
  • Modular concept (1–X stations)


Thielenhaus CrankStar SX

  • Optimised for highly flexible lines
  • 1–X cylinder crankshaft
  • Length up to 800 mm
  • Stroke up to 100 mm


Thielenhaus Sales Department
▶ Phone: +1 248-347-1611
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