Hob profile grinding
HRG 350


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Thanks to our long experience in the manufacturing of high-quality gear cutting tools, we can provide the perfect machine for the customers who wants perfect final products.

The Samputensili HRG 350 hob relief grinding machine is especially suited for the manufacturing of all kinds of different hob types, including helical hobs and threads. The machine guarantees top quality results with minimum cycle times.

Grinding methods:

+ Profile grinding

+ Creep feed grinding

The HRG 350 can accommodate all grinding wheels currently available on the market.

Main advantages:

  • Flexible with internal dressing device
  • Minimum cycle times
  • Accommodates all grinding wheels currently on the market
  • Siemens 840D CNC with mobile operator panel
  • The X and Z axes are directly driven by digital linear motors with flat prismatic guides
  • No mechanical transmission or backlash
  • Profile relief grinding of solid hobs and form cutter disc

Technical Data

Model HRG 350
Max. outside diameter mm 300
Max. workpiece length mm 850
Max. grinding length mm 450
Module range mm 0.6 – 10 (25)
Machine data:
Outside diameter of grinding wheel mm 30 – 100 (200)
Grinding spindle speed range rpm 0 – 28.000
Speed rate of relieving slide stroke / min 0 – 300
Helix angle degrees +/- 45
Grinding wheel – workpiece axes crossing offset degrees 0 – 25
Dressing spindle speed range rpm 0 – 9.000

Catalogue Downloads

HRG 250      Download

HRG 250      Download

HRG 250      Download