KRONOS dual

Through the combination of centerless grinding and grinding between centers, the KRONOS dual preserves the workpiece center during centerless grinding. The perfect solution for machining workpieces that must retain a reference to the centring device after centerless grinding.

Machine description:

  • Combination of centerless grinding and grinding between centers
  • Working range 15... 100 mm, plunge cut length up to 630 mm
  • Thermally stable, vibration-damping GRANITAN® machine bed
  • Shorter machining times thanks to higher stock removal rates
  • Preservation of workpiece center
  • Much shorter machining times with higher grinding accuracy in comparison with pure grinding between centers
  • Max. regulating wheel lowering of 30 mm
  • Complete machine concept based on the proven KRONOS L 660
  • SIEMENS SINUMERIK 840D sl control system

Specifications

Workpiece diameter

mm   

15-100

Workpiece length plunge cut grinding, max. 

mm

300-630

Grinding wheel

   

Grinding wheel diameter, max.   

mm

660

Grinding wheel width, max

mm

660

Grinding wheel peripheral speed (optional CBN)      

m/s

63 (90/120)

Grinding wheel driving power    

kW

51/95

Regulating wheel

 

 

Regulating wheel diameter, max.

mm

400

Regulating wheel width, max.

mm

660

Regulating wheel rpm range, infinitely variable

min-1      

5-300

Regulating wheel driving power

kW

12

     

SINUMERIK 840D sl control system