• Assembled Rotor Shaft (Electric Motor)
  • Stator Housing
  • Truck Brake Drum
  • Articulated cage
  • Bevel gear
  • Blisk
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  • CVT Pulley
  • Large Crankshafts
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  • Differential pinion
  • Differential housing
  • Distributor flange
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  • Gear shaft (joining)
  • Gear shaft (laser welding)
  • Gear with synchronising wheel
  • Hobbing gears
  • Injector body
  • Outer Race
  • Master brake cylinder
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  • Pump ring
  • Railway wheel
  • Roll ring
  • Worm Gear
  • Sprocket
  • Sprocket (Manufacturing System)
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  • Triple-sector clutch
  • Truck Wheel Hub
  • Turbocharger Shaft
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Pump ring

High-precision Production of Pump Rings

Whether round or out-of-round workpieces or even free-form surfaces, with the SK 204 both internal and external pump ring machining is possible: Out-of-round grinding, cylindrical grinding (internal and external), planar grinding, groove grinding and polishing – an all-around grinder.

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Out-of-round Pump Ring Machining

The SK 204 was specially developed for the out-of-round machining of pump rings. Workpieces with an outer diameter of up to 250 mm can be produced on the machine. The typical range of workpieces includes rings for hydraulic pumps, cooling compressors and cam drive shaft workpieces used in injection technology.


Precise pump ring grinding places high demands on the machine

SK 204 – the modular machine system for grinding pump rings. This machine provides solutions for the internal and external out-of-round grinding of individual components, including the production grinding of large series


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