PRG Piston Ring Groove Grinding Machine

Essential machine for cost-effective operation of piston chroming plant.

The PRG piston ring groove grinding machine, with its powerful grinding motors, three grinding heads and seamless regulation of piston rotation speed, is designed for fast and accurate grinding. Featuring a groove measuring device and efficient coolant band filter, the PRG provides a very high level of precision and after having been utilised in chroming plants worldwide it has proven itself an essential machine for the cost-effective operation of piston chroming plants.

  • Stepless regulation of piston rotation speed
  • Two grinding heads for the ring grooves, third head for chamfering and external deposits
  • Powerful grinding motors for fast and accurate grinding
  • Automatic groove measuring device and efficient coolant band filter
  • Rugged high-profile box shaped frame secures superior grinding column stability
  • Digital display of vertical and horizontal positioning of grinding heads
  • Proven in chroming plants worldwide

Technical specification

Piston diameters Ø250 - Ø1000 mm
Piston groove widths >5 mm
Electric power supply 3-phase 400 V 50 Hz
Power requirement 10 kW
Air pressure 0.6 - 0.9 MPa (6 - 9 bar or 85 - 130 psi)
Size H: 2700 mm
L: 2300 mm
W: 2200 mm
Weight ≈ 4500 kg

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