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 Make Karstens Technical data: Center width: 750 mm center height: 180 mm / (250 mm = option) Workpiece weight: 100 kg flying, 250 kg between centers Gbsdpfx Afoiv Audoieu grinding wheel diameter: 400 mm or 500 mm (external grinding wheel) workpiece spindle: MK 4, speed infinitely variable 30-450 rpm, swivel range 0 - 90 ° tailstock: MK4, quill stroke 45 mm, cylinder correction quill force: 200-600 N manual, (up to 2500 N possible, adjustable = option) table inclination: 12,5 degrees feed spindle adjustment travel: 80 mm rapid traverse path: 50 mm Coarse adjustment air cushion: 280 mm Grinding spindle motor outside: 4 KW / (5,5 KW = option) Infinitely variable speed adjustment of the grinding wheel with potentiometer grinding spindle motor inside: 2,2 KW Workpiece spindle motor: 1,1 KW Hydraulic motor 1,5 KW Lubrication motor 0,1 KW Hydraulic tank 80 liters Machine weight: net 3500 Kg Infeed drive by DC motor Air cushion supported quick adjustment of the grinding headstock for fast and safe approach of the grinding position. Separate drive for the spindles for external and internal grinding. Fully automatic work sequence, infeed movement via wind rose switch: Fast forward, fast reverse, grinding mode, infeed stop, mym infeed. Automatic longitudinal grinding cycle Central coolant supply for all grinding points Work headstock with infinitely variable drive with travelling and lockable spindle. Feed control digital with Siemens panel and Siemens SPS for longitudinal grinding and plunge-cut grinding, input for return, infeed amounts, feeds, burnout times, empty strokes, compatible to the old Karstens infeed control, with colored Siemens touch panel scale in X and Z axis make HEIDENHAIN. similar to 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 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 Gjdpfewy Ufusx Afiebu 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: as good as new (ex-display), Year of construction: 2025, Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine Make Karstens Technical data: Center width: 750 mm center height: 180 mm / (250 mm = option) Workpiece weight: 100 kg flying, 250 kg between centers grinding wheel diameter: 400 mm or 500 mm (external grinding wheel) workpiece spindle: MK 4, speed infinitely variable 30-450 rpm, swivel range 0 - 90 ° tailstock: MK4, quill stroke 45 mm, cylinder correction quill force: 200-600 N manual, (up to 2500 N possible, adjustable = option) table inclination: 12,5 degrees feed spindle adjustment travel: 80 mm rapid traverse path: 50 mm Coarse adjustment air cushion: 280 mm Grinding spindle motor outside: 4 KW / (5,5 KW = option) Infinitely variable speed adjustment of the grinding wheel with potentiometer grinding spindle motor inside: 2,2 KW Workpiece spindle motor: 1,1 KW Hydraulic motor 1,5 KW Lubrication motor 0,1 KW Hydraulic tank 80 liters Machine weight: net 3500 Kg Infeed drive by DC motor Air cushion supported quick adjustment of the grinding headstock for fast and safe approach of the grinding position. Separate drive for the spindles for external and internal grinding. Fully automatic work sequence, infeed movement via wind rose switch: Fast forward, fast reverse, grinding mode, infeed stop, mym infeed. Automatic longitudinal grinding cycle Central coolant supply for all grinding points Work headstock with infinitely variable drive with travelling and lockable spindle. Feed control digital with Siemens panel and Siemens SPS for longitudinal grinding and plunge-cut grinding, input for return, infeed amounts, feeds, burnout times, empty strokes, compatible to the old Karstens infeed control, Gbjdpfxsh Rftlj Afieu with colored Siemens touch panel scale in X and Z axis make HEIDENHAIN. similar to Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat

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 Gbjdpfxjwy Rnfs Afiju - Coarse adjustment with air cushion: 280 mm MACHINE DETAILS Drives - 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