Cylindrical grinding machine

Karstens Premium Retrofit K11 1000

Condition: as good as new (ex-display), Year of construction: 2025, Karstens K11 1000 Premium Retrofit Cylindrical Grinding Machine Manufacturer: Karstens Technical Data: Centre distance: 1100 mm Centre height: 180 mm (250 mm optional) Workpiece weight: 100 kg between centres (unsupported), 300 kg between centres (supported) Grinding wheel diameter: 400 mm or 500 mm (external grinding wheel) Workpiece spindle: MT4, infinitely variable speed control 30–450 rpm, swivel range 0–90° Tailstock: MT4, quill stroke 45 mm Quill force: 200–600 N manual (up to 2500 N adjustable, optional) Table swivel angle: 10° Cross feed travel: 80 mm Rapid traverse: 50 mm Coarse adjustment (air cushion): 280 mm External grinding spindle motor: 4 kW (5.5 kW optional) Stepless grinding wheel speed adjustment 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 Net weight: 3,800 kg Feed drive via DC motor Ndsdpfx Aoiv Au Eedvjd Air cushion-assisted rapid positioning of the grinding spindle headstock for quick and safe positioning to the grinding location. Separate drive for external and internal grinding spindles. Fully automatic operation sequence, infeed movement via cam switch: Rapid approach, rapid retraction, grinding mode, infeed stop, micron infeed. Automatic longitudinal grinding cycle Centralised coolant supply for all grinding zones Workpiece headstock with infinitely variable drive for both live and lockable spindle modes. New digital infeed control with Siemens panel and Siemens PLC for both longitudinal and plunge grinding, parameter input for retraction, infeed amounts, feeds, spark-out times, idle strokes; compatible with the previous Karstens infeed control; featuring a colour Siemens touch panel; HEIDENHAIN scale on X and Z axes. Comparable to Weiss, EMAG, GP cylindrical grinding machines, Studer, Kellenberger, Schaudt, Tschudin, Tacchella, Dannobat.