Cylindrical grinding machine

Karstens Premium Retrofit K11 650

Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine

Manufacturer: Karstens
Technical specifications:

Centre distance: 750 mm
Centre height: 180 mm / (250 mm optional)
Workpiece weight: 100 kg (between centres) – 250 kg (supported between centres)
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: MT 4, quill stroke 45 mm, quill offset adjustment
Quill force: 200–600 N manual, (up to 2500 N adjustable as option)
Table swivel adjustment: 12.5 degrees
Cross slide travel: 80 mm
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Rapid traverse distance: 50 mm
Coarse adjustment with air cushion: 280 mm
External grinding spindle motor: 4 kW / (5.5 kW optional)
Stepless speed setting 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: 80 litres
Machine weight: Net 3,500 kg
Feed drive via DC motor
Air-cushioned rapid adjustment of the grinding spindle head for fast and precise positioning.
Separate drive for external and internal grinding spindles.
Fully automatic operation, feed movement controlled via handwheel switch: rapid feed, rapid return, grinding operation, feed stop, mym-feed.
Automatic longitudinal grinding cycle
Central coolant supply for all grinding zones
Workpiece headstock with steplessly adjustable drive, with live and lockable spindle.
Digital feed control with Siemens panel and Siemens PLC for plunge and traverse grinding, input for retraction, infeed values, feed rates, spark-out times, idle strokes, compatible with traditional Karstens infeed control, with colour Siemens touch panel.
Scale in X and Z axis by HEIDENHAIN.
Comparable with Weiss / EMAG / GP cylindrical grinders / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat / Bahmüller / Fortuna.

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