Cylindrical grinding machine

Karstens Premium Retrofit K11 650

Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine

Manufacturer: Karstens
Technical Specifications:

- Distance between centers: 750 mm
- Center height: 180 mm (250 mm optional)
- Workpiece weight: 100 kg between centers, 250 kg between tips
- Grinding wheel diameter: 400 mm or 500 mm (external grinding wheel)
- Workpiece spindle: MT 4, stepless speed adjustment 30-450 rpm, swivel range 0 - 90°
- Tailstock: MT4, quill stroke 45 mm, cylindrical correction
- Quill force: 200-600 N manual, (up to 2500 N adjustable option)
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- Table swivel: 12.5 degrees
- Infeed spindle stroke: 80 mm
- Rapid traverse: 50 mm
- Coarse adjustment air cushion: 280 mm
- External grinding spindle motor: 4 kW (5.5 kW optional)
- Stepless speed adjustment of the grinding wheel via potentiometer
- Internal grinding spindle motor: 2.2 kW
- Workpiece spindle motor: 1.1 kW
- Hydraulic motor: 1.5 kW
- Lubrication motor: 0.1 kW
- Hydraulic tank capacity: 80 liters
- Machine weight: net 3,500 kg
- Infeed drive through DC motor
- Air-cushion-assisted rapid adjustment of the grinding spindle head for fast and safe positioning to the grinding point
- Separate drives for spindles for external and internal grinding
- Fully automatic work cycle, feed movement via rotary switch: rapid advance, rapid return, grinding operation, feed stop, fine feed
- Automatic longitudinal grinding cycle
- Central coolant supply for all grinding points
- Workpiece spindle head with continuously adjustable drive for live and lockable spindle
- Digital infeed control with Siemens panel and Siemens PLC for longitudinal grinding and plunge grinding, input for return stroke, infeed amounts, feeds, spark-out times, idle strokes; compatible with older Karstens infeed controls, with a color Siemens touchscreen panel
- Scale in X and Z axes by HEIDENHAIN

Comparable to Weiss/EMAG/GP cylindrical grinding machines/Studer/Kellenberger/Schaudt/Tschudin/Tacchella/Dannobat

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