Cylindrical grinding machine

Karstens Premium Retrofit K11 1000

Karstens K11 1000 Premium Retrofit Cylindrical Grinding Machine

Manufacturer: Karstens
Technical specifications:

Centre distance: 1100 mm
Centre height: 180 mm (250 mm optional)
Workpiece weight: 100 kg between centres, 300 kg between centres
Grinding wheel diameter: 400 mm or 500 mm (external grinding wheel)
Workpiece spindle: MT 4, stepless speed control 30–450 rpm, swivelling range 0–90°
Tailstock: MT 4, quill stroke 45 mm
Quill force: 200–600 N manual, (up to 2500 N adjustable—optional)
Table swivel: 10 degrees
Adjustment travel of feed spindle: 80 mm
Rapid traverse stroke: 50 mm
Coarse air cushion adjustment: 280 mm
External grinding spindle motor: 4 kW (5.5 kW optional)
Stepless grinding wheel speed setting 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: 80 litres
Machine weight, net: 3,800 kg
Feed drive via DC motor
Air-cushioned rapid adjustment of the grinding headstock for quick and precise approach to the grinding position.
Separate drives for external and internal grinding spindles.
Fully automatic operation cycle, infeed movement controlled by cam switch: rapid approach, rapid return, grinding mode, feed stop, micron feed.
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Automatic longitudinal grinding cycle
Central coolant supply to all grinding positions
Workpiece headstock with infinitely variable drive for rotating or fixed spindle configuration.
New digital feed control with Siemens touchscreen panel and Siemens PLC for longitudinal and plunge grinding, with input for retraction, feed values, feed rates, spark-out times, idle strokes; compatible with previous Karstens feed control. Features a colour Siemens touchscreen panel.
Comparable to Weiss, EMAG, GP cylindrical grinding machines, Studer, Kellenberger, Schaudt, Tschudin, Tacchella, Dannobat.

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