Cylindrical grinding machine

Karstens K11 650

Condition: as good as new (ex-display), Year of construction: 2025, 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) - 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 Dsdpfxeiv Audo Adajcp - 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

Condition: refurbished (used), Year of construction: 2024, functionality: fully functional, center height: 180 mm, workpiece weight (max.): 70 kg, center width: 650 mm, grinding wheel diameter: 400 mm, Equipment: rotational speed infinitely variable, Fully overhauled cylindrical grinding machine, year of manufacture 2024! No minimum price – guaranteed sale to the highest bidder! TECHNICAL DETAILS Dcodpfx Aowy Ufuedaep Centre distance: 650 mm Centre height: 180 mm Workpiece weight: 70 kg (unsupported), 250 kg (between centres) Grinding wheel diameter: 400 mm Workpiece Spindle and Tailstock Workpiece spindle: Morse taper 4 Spindle speed: steplessly variable, 30–450 rpm Swivel range: 0–90° Tailstock: Morse taper 4 Quill stroke: 45 mm Quill force: 200–600 N Axes and Adjustments Table swivel: 10° Infeed spindle travel: 80 mm Rapid traverse distance: 50 mm Coarse adjustment, air cushion: 280 mm MACHINE DETAILS Motor External grinding spindle motor: 4 kW Internal grinding spindle motor: 2.2 kW Workpiece spindle motor: 0.55 kW Machine weight: 3,600 kg FEATURES Infeed drive via DC motor Air-cushioned rapid adjustment of grinding spindle headstock Separate drive for external and internal grinding spindles Fully automatic operation: rapid advance, rapid return, grinding cycle, infeed stop, mym infeed Automatic longitudinal grinding cycle Central coolant supply Infeed control for longitudinal and plunge grinding

Condition: excellent (used), Year of construction: 1988, functionality: fully functional, center height: 180 mm, workpiece weight (max.): 70 kg, center width: 650 mm, grinding wheel diameter: 400 mm, workpiece weight between centers: 250,000 g, The machine has been fully repaired and inspected by the seller! TECHNICAL DETAILS Working Area - Distance between centers: 650 mm - Center height: 180 mm - Workpiece weight: max. 70 kg (overhung) / max. 250 kg (between centers) - Grinding wheel diameter: 400 mm Workpiece Spindle - Mount: MK4 (Morse taper 4) - Speed: 30 - 450 rpm - Swivel range: 0 - 90° - Motor power: 0.55 kW Tailstock - Mount: MK4 (Morse taper 4) - Quill stroke: 45 mm - Quill force: 200 - 600 N Adjustment Travels and Settings - Table swivel angle: 10° - Infeed spindle travel: 80 mm - Rapid traverse: 50 mm - Coarse adjustment with air cushion: 280 mm MACHINE DETAILS Drives Dcedswy Rnfspfx Adaep - External grinding spindle motor: 4 kW - Internal grinding spindle motor: 2.2 kW Weight - Machine weight: 3,600 kg EQUIPMENT - Air-cushion supported rapid adjustment of grinding spindle headstock - Separate drive for external and internal grinding spindles - Fully automatic operation with rotary switch - Automatic longitudinal grinding cycle - Central coolant supply for all grinding positions - Workpiece spindle stock with stepless drive control - Infeed control for longitudinal and plunge grinding