Cylindrical grinding machine

Karstens Premium Retrofit K11 650

Karstens K11 650 Premium Retrofit Round Grinding Machine

Manufacturer: Karstens
Technical Specifications:

Center distance: 750 mm
Center height: 180 mm / (250 mm = Option)
Workpiece weight: 100 kg cantilevered, 250 kg between centers
Grinding wheel diameter: 400 mm or 500 mm (external grinding wheel)
Workpiece spindle: MK 4, speed continuously adjustable 30-450 rpm, swivel range 0 - 90 °
Tailstock: MK4, quill stroke 45 mm, cylindrical correction
Quill force: 200-600 N manually, (up to 2500 N possible, adjustable = Option)
Table inclination: 12.5 degrees
Travel of the feed spindle: 80 mm
Rapid traverse: 50 mm
Rough adjustment with air cushion: 280 mm
Grinding spindle motor, external: 4 kW / (5.5 kW = Option)
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Continuously adjustable grinding wheel speed with potentiometer
Grinding spindle motor, internal: 2.2 kW
Workpiece spindle motor: 1.1 kW
Hydraulic motor: 1.5 kW
Lubrication motor: 0.1 kW
Hydraulic tank: 80 liters
Machine weight: Net 3500 kg
Feed drive via DC motor
Air cushion-supported rapid adjustment of the grinding spindle head
for quick and safe positioning to the grinding location.
Separate drive for the spindles for external and internal grinding.
Fully automatic operating sequence, feed movement via wind rose switch:
Rapid traverse forward, rapid traverse backward, grinding operation, feed stop, incremental feed.
Automatic longitudinal grinding cycle
Central coolant supply for all grinding points
Workpiece spindle head with continuously adjustable drive with a co-rotating and lockable spindle.
Feed control, digital with Siemens panel and Siemens PLC
for longitudinal grinding and plunge grinding, input for retraction, feed increments,
feeds, dwell times, idle strokes, compatible with the old Karstens feed control,
with color Siemens touch panel
Scale in X and Z axes, manufacturer HEIDENHAIN.
Similar to Weiss / EMAG / GP round grinding machines / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat / Bahmüller / Fortuna.

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