RFM Series

HOB Grinding Machine

RFM Series

Technical specifications

RFM 500 SL / RFM1000SP

Length between centers600 mm / 1.200 mm
Height of centers150 mm / 270 mm
Helix axis+90º - 225º
Hob modules0,4-12 / 8-30
Part max. weight100 kg / 500 kg
Installed Power 35 kW / 65 kW
Machine dimensionsL: 2400 W: 1950 H: 2000 / L: 5500 W: 2500 H: 2350
Machine Total weight5000 kg / 12.000 kg


  • High dynamics relieving by means of linear motor technology.
  • Built-in spindle motors.
  • Wide range of wheelhead configurations for specific component requirements: cylindrical wheel, cup-form wheel or finger wheel.
  • Helix angle by means of power motor (+90º / -225º)
  • Software :
    • Wheel profile definition through standard parametric program or external *.dxf file.
    • Grinding tool is calculated and optimizedin relation to the hob defining parameters – diameter, num. of flutes, lead angle, relief depth, ….
  • Grinding accuracy AAA according to DIN 3968.


Straight and helical hobs and milling cutters. Module range 0,5 to 25.

Quality accuracy class AA to AAA, according to DIN 3968.



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