KRONOS M 250

The KRONOS M 250 enables optimum adaptation to any grinding task. Thanks to its impressive system rigidity, the centerless precision grinding machine is the ideal solution for manufacturing workpieces of the highest quality.

Machine description:

  • Working range 1.5...100 mm, plunge cut length up to 245 mm
  • Thermally stable, vibration-damping GRANITAN® machine bed
  • High system rigidity thanks to regulating spindles supported on both sides and rigidly designed slide systems
  • Overhung grinding spindles
  • Grinding spindles mounted on hydrodynamic bearings (optional)
  • Designed for mass production
  • High cost effectiveness thanks to reduced cycle times
  • Optionally extendable if application requirements change
  • Highest safety standard thanks to full housing
  • Maintenance and service friendly SIEMENS SINUMERIK 840D sl control system

Possible technologies:

  • Plunge cut grinding
  • Throughfeed grinding
  • Plunge cut grinding in mass production
  • Surface grinding (grinding spindles mounted on hydrodynamic bearings)

Specifications

Workpiece diameter

mm

1.5-100

workpiece length plunge cut grinding, max.

mm

245

Grinding wheel    

Grinding wheel diameter, max.  

mm

610

Grinding wheel width, max.

mm

250

Grinding wheel peripheral speed (optional CBN)      m/s 63 (120)

Grinding wheel driving power  

kW

22

Regulating wheel 

 

 

Regulating wheel diameter, max. mm 350
Regulating wheel width, max. mm 250
Regulating wheel rpm range, infinitely variable min-1           5-600
Regulating wheel driving power kW  5.7
     

SINUMERIK 840D sl control system