Used Karstens for sale (27)

Condition: used, Year of construction: 2003, Technical details: grinding length: 1500 mm weight of the machine ca.: 12 t Karstens EMAG H310 Universal Grinding Machine Year of manufacture: 2004 Center distance: 1500 mm Center height: 325 mm Reinforced workpiece spindle, load capacity up to 250 kg Driven C-axis for polygon, thread, and eccentric grinding. 3 individually mounted grinding spindles. Siemens 840D control system Rodsx Hgilepfx Ah Ujl *

Condition: as good as new (ex-display), Year of construction: 2025, Centre height: 181 mm Centre distance: 650 mm Maximum grindable workpiece diameter: 360 mm Max. load between centres (cantilevered): 1000 N (100 kg) Max. load between centres: 3000 N (300 kg) Z-axis: Table swivel angle: 10° Table drive, hydraulic: 0-4 m/min X-axis: Infeed spindle travel: 80 mm Rapid traverse (hydraulic): 50 mm Coarse adjustment (air cushion): 280 mm Feed drive by DC motor Rapid feed rate: 48 mm/min/Ø Feed process: plunge grinding / longitudinal grinding 4 preselectable feed rates: mm/min/Ø 0.01–48 4 preselectable infeed amounts: mm 0.001–0.1 Spark-out time, oscillation grinding: 0–99 s / 0–99 strokes Tapping infeed: mm/Ø 0.001 Grinding spindle headstock: universal, swiveling: 0–180° Grinding wheel (external): D x b x d (mm) 500x100x127 or 203.2 Grinding wheel (face - option): D (mm) 250x32x76.2 Grinding wheel (internal - option): D (mm) (2–250) Drive power, external/face: kW 5.5 (7.5) Drive power, internal: kW 2.2 Peripheral speed, external: m/s 35 (50) Grinding wheel wear (external): mm/Ø 160 Guard width: 100 mm Grinding spindle diameter: 60 mm Internal spindle mounting: 80 (100) mm Workpiece headstock: Stepless variable drive: Mk 4, 1/mm 30–270 / 50–450 Workpiece spindle fixable Spindle bore: MK 4/24 mm Spindle nose for flange mounting: MK 4 mm cylindrical Ø63H6 x 6 Workpiece headstock swivel on rotary part: 0–90° Tailstock: Quill mounting / quill diameter: MK 4 / 75 mm Quill stroke: 45 mm Quill force: 100–800 N / 250–1400 N adjustable Quill actuation: manual (foot switch) Quill fine adjustment: ±40 µm Connections: Total connected load (machine): 6.5–10 kW Grinding spindle headstock: 5.5 (7.5) kW Workpiece headstock: 0.55 (1.1) kW Coolant filtration: 0.75–2.2 kW Guideway lubrication pump: 0.1 kW Redpfjtqf Sqex Ah Uel Hydraulic pump: 1.5 kW Hydraulic tank: 80 L Pneumatics: 6 bar Comparable machines: Weiss / EMAG / GP cylindrical grinders / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat

Condition: good (used), Year of construction: 1974, Digital display Rodpfx Aewpya Neh Uol Grinding diameter 250 mm Grinding length 650 mm Accessories

Condition: repair required (used), Type AS - 900 Machine No. 74054 Centre distance 900 mm Centre height 150 mm Max. grinding wheel 400 x 80 x 127 mm Centre height 150 mm Centre distance 900 mm Rjdpfsx Hfcwox Ah Uel ..... Condition: The machine cannot be switched on! The following applies to this machine: Condition unknown! Scope of delivery as per attached images ....

Condition: defective spare-parts repository (used), We offer you: Cylindrical grinding machine Manufacturer: Karstens Redpfxjxxxrto Ah Uol For spare parts The main spindle grinding head is missing Accessories, illustrated tools, and clamping devices are only included if stated in the additional information. Subject to changes and errors in technical data and details, as well as prior sale!

Condition: used, Year of construction: 1979, functionality: fully functional, Grinding wheel diameter: 600 mm Center width: 300 mm Center height: 180 mm Headstock Rjdporvybtjfx Ah Usl Counter holder with pressure cylinder

Condition: used, Year of construction: 1990, grinding diameter 360 mm grinding length 1000 mm centre height 180 mm max. workpiece weight between centres 250 kg Maschine mit sehr wenigen Betriebsstunden nach Überholung beim Karstens Fachbetrieb. Zustellsteuerung Jetter Rsdpfsxbh Ebox Ah Ujl Digitalanzeige Innenschleifvorrichtung Reitstock mit Zylindrizitätsfeinverstellung Hydraulische Reitstockpinole Etc... Luftkissenschnellverstellung Schleifspindelstock

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) Rsdpfx Aoiv Au Esh Uol 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 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.

Year of construction: 2014, condition: ready for operation (used), A Karstens cylindrical grinding machine from 1992, which was completely overhauled and modernized in 2014, is available. Center width: 1000mm, center height: 180mm, grinding diameter: 360mm, max. workpiece weight center/flying: 250kg/70kg, grinding wheel diameter: 400mm. Spindle holder: MK4, speed: 450rpm, swivel range: 90°, quill holder: MK4, quill stroke: 45mm, quill force: 600N. Table swivel: 10°, infeed spindle: 80mm, rapid traverse: 50mm, coarse adjustment: 280mm, weight: approx. 3800kg. Including 3x centering points and grinding wheels as good as new. Documentation available. On-site inspection is possible. Redov Suftjpfx Ah Uel

Condition: good (used), Year of construction: 1970, functionality: fully functional, Data : Tip width 300 mm Tip height 150 mm External grinding spindle 4.0 kW Grinding wheel max. 400 x 80 x 127 mm Spindle cone MK4 Workpiece headstock 0.55 kW Workpiece speeds 30 - 450 rpm Internal grinding spindle 1.5 kW Rodexw Etnspfx Ah Usl

Condition: used, Year of construction: 1999, grinding diameter 360 mm grinding length 650 mm centre height 180 mm Control SIEMENS 840 D total power requirement 15 kW Rsdpot Hw A Hsfx Ah Usl weight of the machine ca. 9500 kg dimensions of the machine ca. m

Condition: good (used), Year of construction: 2002, functionality: fully functional, center height: 180 mm, grinding length: 1,000 mm, center width: 1,000 mm, grinding wheel diameter: 400 mm, grinding diameter: 360 mm, controller model: Steuerung Siemens 840 D, TECHNICAL DETAILS Rjdpfov Rfz Aex Ah Uol Grinding length: 1,000 mm Center height: 180 mm Center width: 1,000 mm Grinding diameter: 360 mm Grinding wheel diameter: 400 mm Control: Siemens 840 D EQUIPMENT - Grinding detection - Coolant system - Internal grinding spindle - Flanges

Condition: as good as new (ex-display), Year of construction: 2025, Centre height: 181 mm Centre distance: 1000 mm Maximum grindable workpiece diameter: 360 mm Max load cantilevered: 1000 N (100 kg) Max load between centres: 3000 N (300 kg) Z-axis: Table swivel angle: 10° Table drive, hydraulic: 0–4 m/min X-axis: Cross slide travel: 80 mm Rapid traverse (hydraulic): 50 mm Rsdetqf Rzjpfx Ah Ujl Coarse adjustment – air cushion: 280 mm Infeed drive by DC motor Rapid infeed speed: 48 mm/min/Ø Infeed cycle: Plunge grinding / Longitudinal grinding 4 preselectable speeds: mm/min/Ø: 0.01–48 4 preselectable infeed increments: mm: 0.001–0.1 Automatic shut-off during stop-grinding: 0–99 s or 0–99 strokes Stepwise infeed: mm/Ø: 0.001 Grinding headstock universal, swivelling: 0–180° Grinding wheel (OD): D x width x bore: 500 x 100 x 127 mm or 203.2 mm Grinding wheel (face, option) D: 250 x 32 x 76.2 mm Grinding wheel (ID, option) D: 2–250 mm Drive power, external/face: 5.5 (7.5) kW Drive power, internal: 2.2 kW Peripheral speed, external: 35 (50) m/s Grinding wheel wear (OD): mm/Ø: 160 Guard width: 100 mm Grinding spindle diameter: 60 mm Internal spindle mounting: 80 (100) mm Workpiece headstock: Infinitely variable drive: MK 4, 1/min: 30–270 / 50–450 Workpiece spindle lockable Spindle mounting: MK 4/24 mm Spindle nose for flange attachment: MK 4, cylindrical Ø63H6 x 6 mm Headstock swivels on rotating part: 0–90° Tailstock: Quill mounting / Quill diameter: MK 4, 750 mm Quill stroke: 45 mm Quill force, N: 100–800 / 250–1400 adjustable Quill operation: manual (foot switch) Quill fine adjustment: ±40 μm Connections: Total machine connected load: 6.5–10 kW Grinding headstock: 5.5 (7.5) kW Workpiece headstock: 0.55 (1.1) kW Coolant filtration: 0.75–2.2 kW Lubrication pump – guideways: 0.1 kW Hydraulic pump: 1.5 kW Hydraulic tank: 80 l Pneumatics: 6 bar Comparable to: Weiss / EMAG / GP cylindrical grinders / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat

Year of construction: 1974, condition: ready for operation (used), A Karstens cylindrical grinding machine with display is available. Center height: 180mm, grinding diameter: 360mm, center width: 650mm, max. workpiece weight flying/between centers: 70kg/250kg. Grinding wheel outer diameter: 400mm, face diameter: 250mm, peripheral speed: 35m/s, speed: 450rpm, mounting cone: MK4, quill diameter: 50mm, fine adjustment: 0.08mm. Machine dimensions X/Y: approx. 3250mm/2150mm, weight: approx. 3600kg. On-site inspection is possible. Rsdpfovf Iy Rox Ah Uol

Condition: used, Year of construction: 2000, grinding diameter 360 mm grinding length 1600 mm centre height 180 mm internal diameter 0 mm grinding depth 0 mm swing diameter 0 mm total power requirement 40 kW weight of the machine ca. 10000 kg dimensions of the machine ca. m K A R S T E N S (Germany) Universal “CNC” - Cylindrical Internal and Face Grinding Machine also for grinding excentric and cam profiles and polygons and even suitable for Threadgrinding Model K 51 – 1500 Year 2000 Serial No. 99 093 Height of centres 180 mm Distance between centres / grinding length 1,700/1.600 mm Cylindrical Grinding: Grinding Ø, approx. 5 - 360 mm Grinding wheel: Ø x width x bore 500 x 100 x 127 mm Grinding spindle speeds (35 m/s / 50 m/s) 1.900 / 2.200 rpm Drives of cyl./int/face spindle units 7.5/4,0/7,5 kW Grinding Wheelhead: 3 Positions = B-Axis Head swivels in 3 positions = 240 ° / 17,5 degree X-axis adjustment in total 360 mm Increments for infeed 0,001 – 125 mm Redpfxet Hw Rds Ah Uol Workpiece wheelhead = C-Axis Spindle speeds steplessly adjustable 10 – 1.000 rpm Spindle taper / Spindle bore MK 4 / 24 mm Table speeds 0,01 – 10.000 mm/min Total electrical load 40 kW - 400 V - 50 Hz Weight, approx. 10,000 kg Accessories / Special Features: * Very versatile CNC Grinding Machine for almost all grinding purposes like External/Internal and Face grinding as well as for Excentric- / Cam- / Polygone Grinding and even for Thread Grinding * Free programmable CNC System make BWO Model 900 C with many grinding cycles and for easy input of the work-parameters. Graphic support, any many more features. * 3 position wheelhead with 3 Grinding spindles as B-Axis, one with measuring feeler (Z - Position) * MOVOMATIC Measuring Device Model ES 400 for diameter control, Probe head CR 60, to be mounted on table. * MPM Automatic Grinding wheel balancing Device, Dressing devices with diamantflees mounted on table surface and also motorized Diamantroll Profile dresser on table (for thread profiles, etc.) * Workhead and tailstock can be easily moved on table by air cushion. Hydraulic quill on tailstock. * No Coolant Device available ! Condition : Good to very good. Machine can be inspected under power. Delivery : Ex stock as inspected. Payment : Net, after conclusion of contract.

Condition: new, We offer spare parts of all kinds for your conventional or CNC Karstens/GP cylindrical grinding machine – for all components around your tailstock, workpiece spindle head, grinding spindle head, ball screws, glass scales, grinding wheel flanges, drive motors, axis drives (BOSCH SIEMENS), bellows, bearings, K11/K21 infeed controls new and used, reversing blocks for the Z-axis as exchange units... Also suitable for similar Weiss/EMAG/GP cylindrical grinding machines/Studer/Kellenberger/Schaudt/Tschudin/Tacchella/Dannobat . Rsdpfjraibvsx Ah Uel

Year of construction: 2016, condition: ready for operation (used), A universally overhauled in 2016 universal grinding machine Karstens from the year 1968 is available. Grinding length: 320mm, centre height: 150mm, grinding wheel diameter: 350mm, spindle diameter: 60mm, workpiece headstock: MT4, tailstock: MT4. Includes approx. 200l wet grinding unit, 3x grinding wheel holders, internal grinding unit, grinding spindle, quick clamping device, collet holders, various chucks, and extraction system. Documentation available. An on-site inspection is possible. Rodpfjw E Iy Aox Ah Usl

Condition: new, We offer you spare parts of all kinds for your conventional or CNC Karstens / EMAG WEISS / GP cylindrical grinding machine—covering your tailstock, workpiece headstock, grinding spindle headstock, ball screw spindles, glass scales, grinding wheel flanges, drive motors, axis drives (BOSCH SIEMENS), ECKELMANN controls, bellows, bearings, K11/K21 infeed controls (new and used), as well as Z-axis reversing blocks for exchange. We service machines from year of manufacture 1955 onwards: ASA-ASE-K10-K11-K12-K13-K16-K19-K21-K22-K23-K24-K25-K26-K27-K28- K29-K33-K35-K37-K50-K51-K52-K53-K57-W11-W21-GP cylindrical grinding machines—all assemblies based on Karstens design. Rodpfx Ahjup Aiko Uel Comparable/ EMAG-WEISS/ GP cylindrical grinding machines/ Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat.

Condition: ready for operation (used), There are five metal working machines available (1) Cylindrical Grinding Machine Karstens (2) Lathe Iberimex MOD. T6 (3) Multi-Spindle Drilling Machine (4) 2x Thread Cutting Machine Weiler, the machine can be visited. Rjdenl Emfspfx Ah Usl

Condition: as good as new (ex-display), Year of construction: 2025, Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine Rsdpfx Ahsiv Audj Usl 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 - 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: ready for operation (used), Grinding length: 650mm, center height: 150mm, grinding wheel dimensions: 400x80x127mm, sleeve diameter with Mk 4 seat: 50mm, weight: 2.9t, including belt filter, electrical circuit diagrams and hydraulic diagrams, an on-site inspection is possible. Rsdpfxep T Upho Ah Ujl

Condition: refurbished (used), Year of construction: 1990, Karstens K11 1000 Full Equipment The cylindrical grinding machine has been completely overhauled by PS-Karstens. The machine has been inspected and is in very good condition. Since we specialize in Karstens cylindrical grinders, we can offer you complete service (both electrical and mechanical) for the machine after purchase. Technical specifications: Distance between centers: 1000 mm Center height: 180 mm Workpiece weight: 100 kg (overhung), 250 kg (between centers) Grinding wheel diameter: 400 mm Workpiece spindle: MT 4, infinitely variable speed control 30–450 rpm, swiveling range 0–90° Tailstock: MT 4, quill stroke 45 mm, micrometric adjustment Quill force: 200–600 N, hydraulically operated via foot pedal Table swivel: 10 degrees Cross slide travel: 80 mm Rapid traverse travel: 50 mm Coarse adjustment (air cushion): 280 mm External grinding spindle motor: 4 kW Internal grinding spindle motor: 2.2 kW Workpiece spindle motor: 0.55 kW Machine weight: net 3800 kg Feed drive via DC motor Air-cushioned rapid traverse of grinding headstock for quick and safe positioning at grinding position Separate drive for external and internal grinding spindles Fully automatic operation, infeed movement controlled by handwheel switch: rapid advance, rapid return, grinding mode, infeed stop, mym infeed Automatic longitudinal grinding cycle Central coolant supply for all grinding points Workpiece headstock with steplessly adjustable drive for live and lockable spindle Rjdpoh Riwdefx Ah Usl Infeed control for longitudinal and plunge grinding, with programmable retraction, feed increments, feeds, spark-out times, and idle strokes Digital readouts for grinding spindle B-axis, workpiece spindle, X-, and Z-axis by HEIDENHAIN Paper belt filter unit approx. 250 L Comparable to Weiss/EMAG/GP cylindrical grinders/Studer/Kellenberger/Schaudt/Tschudin/Tacchella/Dannobat

Condition: as good as new (ex-display), Year of construction: 2025, 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) Rodsh Rimmspfx Ah Uel 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. 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.

Condition: excellent (used), Year of construction: 1982, Karstens K11 1000 This cylindrical grinding machine is in absolutely as-new condition available from December 2025. It has extremely low operating hours and comes with accessories valued at over €20,000.00. Since we specialize in Karstens cylindrical grinding machines, we can offer you complete service (electrical and mechanical) for the machine after purchase. Technical specifications: - Centre distance: 1000 mm - Centre height: 180 mm - Workpiece weight: 70 kg between centres, 250 kg on centers - Grinding wheel diameter: 400 mm - Workpiece spindle: MT 4, stepless speed adjustment 30-450 rpm, swiveling range 0 - 90° - Tailstock: MT4, quill stroke 45 mm - Tailstock support next to Z-axis table - Quill force: 200-600 N - Table swivel: 12.5 degrees - Cross slide travel (dial): 80 mm - Rapid traverse: 50 mm - Coarse adjustment air cushion: 280 mm - External grinding spindle motor: 4 kW - Internal grinding spindle motor: 2.2 kW - Workpiece spindle motor: 0.55 kW - Machine net weight: 3500 kg - Infeed drive via DC motor - Air cushion-supported rapid adjustment of the grinding spindle head for fast and safe positioning to the grinding position. - Separate drives for external and internal grinding spindles. - Fully automatic operating cycle, infeed movement controlled via rotary cam switch: rapid approach, rapid return, grinding operation, infeed stop, mym infeed. - Automatic longitudinal grinding cycle - Central coolant supply for all grinding zones - Workpiece headstock with infinitely variable drive, both live and lockable spindle. - Infeed control for longitudinal or plunge grinding, settings for retraction, infeed values, feed rates, spark-out times, idle strokes - Digital readout for X-axis from Heidenhain - Paper band filtration system available as an option on request. Rodpeh Rit Eefx Ah Uol Comparable to Weiss/ EMAG/ GP-cylindrical grinders/ Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat

Condition: refurbished (used), Year of construction: 1988, Karstens K11 650 The cylindrical grinding machine has been completely overhauled by PS-Karstens. The machine has been tested and is in excellent condition. As we specialize in Karstens cylindrical grinding machines, we can offer you complete service (both electrical and mechanical) for the machine after purchase. Technical data: - Distance between centers: 650 mm - Center height: 180 mm - Workpiece weight: 100 kg (between centers), 250 kg (supported between centers) - Grinding wheel diameter: 400 mm - Workpiece spindle: MK 4, infinitely variable speed 30-450 rpm, swivel range 0 - 90° - Tailstock: MK 4, quill stroke 45 mm, fine adjustment with micrometer - Quill force: 200-600 N, hydraulically operated via foot pedal - Table swivel: 10° - Infeed spindle travel: 80 mm - Rapid traverse distance: 50 mm - Coarse adjustment with air cushion: 280 mm - External grinding spindle motor: 4 kW - Internal grinding spindle motor: 2.2 kW - Workpiece spindle motor: 0.55 kW - Machine weight: net 3800 kg - Infeed drive via DC motor - Air-cushioned rapid adjustment of the grinding spindle head for quick and safe positioning to the grinding position. Rsdpjh Rixxefx Ah Ujl - Separate drive for the spindles for external and internal grinding. - Fully automatic operation: infeed movement via cam switch: rapid advance, rapid return, grinding operation, infeed stop, μm infeed. - Automatic longitudinal grinding cycle - Central coolant supply for all grinding points - Workpiece spindle head with steplessly adjustable drive for both rotating and clamped spindle operations. - Infeed control for plunge and traverse grinding, settings for retraction, infeed amounts, feed rates, spark-out times, empty strokes - Paper band filter unit approx. 250 L - Comparable to Weiss / EMAG / GP-cylindrical grinding machines / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat