Used Karsten for sale (161)

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 Hodpfxexguxfo Ag Nsfn Centre distance 900 mm ..... Condition: The machine cannot be switched on! The following applies to this machine: Condition unknown! Scope of delivery as per attached images ....

Condition: good (used), Year of construction: 2002, Machine type: CNC Lathe Manufacturer: Reinecker Karstens Kopp - EMAG Model: VSC 250 DS Serial number: M02.43446 Year of manufacture: 2002 Hjdpfx Aekyrwwjg Njfn Available immediately Ex site for self disassembly Optionally we can offer dismantling and loading

Condition: used, Year of construction: 1990, grinding diameter 360 mm grinding length 1000 mm centre height 180 mm Hjdpsxbh Ebjfx Ag Nefn max. workpiece weight between centres 250 kg Maschine mit sehr wenigen Betriebsstunden nach Überholung beim Karstens Fachbetrieb. Zustellsteuerung Jetter 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 Make Karstens Technical data: Center width: 1100 mm center height: 180 mm / (250 mm = option) workpiece weight: 100 kg flying, 300 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 quill force: 200-600 N manual, (up to 2500 N possible, adjustable = option) table inclination: 10 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 3800 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 Hfodpfjiv Au Esx Ag Nen Central coolant supply for all grinding points Work headstock with infinitely variable drive with travelling and lockable spindle. spindle. New infeed 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: 2015, Retrofit 2015 Hfodjuc Uttjpfx Ag Nsn Karstens K 52 cylindrical grinding machine, CNC control Eckelmann ENC 66, Workpiece length 650 mm, Weiss Schleiftechnik retrofit 2015, Expansion through automation 2023, Spindle power 7.5 KW, Center height 180 mm, Ø grinding wheel 500 mm, straight / angular grooving, filter system, Auto. Loading between the centers, Prismatic belt blank / finished part

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. Hjdpfx Aev Suftog Nsfn

Condition: good (used), Year of construction: 1970, functionality: fully functional, Data : Hfjdpfexbnlnjx Ag Nen 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

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

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

Condition: new, We offer you for your conventional or CNC Karstens/GP cylindrical grinding machine spare parts of all kinds around your tailstock, workhead, grinding headstock, ball screw spindles - glass scales - grinding wheel flanges - drive motors Hodpoup Aiksfx Ag Nofn - Axis drives ( BOSCH SIEMENS ) - Bellows - Bearings - K11/ K21 infeed controls new and used - Reversing blocks Z.axis in exchange.....

Condition: reconditioned (used), Year of construction: 1987, grinding diameter 360 mm grinding length 650 mm centre height 180 mm spindle taper MK 4 speeds of grinding spindle 1600 U/min turning speed range - workpiece spindle 30 - 450 U/min power capacity - grinding motor 4 kW dimensions of grinding wheel Ø 400 x 100 x 127 mm max. width of grinding wheel 60 mm max. workpiece weight between centers 250 kg Hfedpfx Aetxr Rqjg Nen taper in tailstock-quill MK 4 weight of the machine ca. 3,5 t dimensions of the machine ca. 3,02 x 1,57 x 1,80 m coolant tank 1,02 x 1,02 x 0,90 m switchgear cabinet 1,12 x 0,81 x 1,70 m - Serial No.: 8606606111 - rapid traverse - internal grinding device - dressing device - coolant equipment - Machine partly reconditioned incl. geometry check

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. Hfodpfx Asvf Iy Rog Nsn

Condition: good (used), Year of construction: 1974, Digital display Grinding diameter 250 mm Grinding length 650 mm Hedpfjwpya Nox Ag Nofn Accessories

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 Hedpfxst Hw Rdj Ag Njfn 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 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 you for your conventional or CNC Karstens/GP cylindrical grinding machine spare parts of all kinds around your tailstock, workhead, grinding headstock, ball screws - glass scales - grinding wheel flanges - drive motors Hjdpfx Aeraibvog Njfn - Axis drive ( BOSCH SIEMENS ) - Bellows - Bearings - K11/ K21 infeed controls new and used - Reversing blocks Z.axis in exchange.....

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. Hjdpfenl Emfex Ag Nefn

Condition: as good as new (ex-display), Year of construction: 2025, Tip height 181 mm chip width 650 mm Hjdpfotqf Sqjx Ag Nsfn largest grindable workpiece diameter 360 mm max load on the fly 1000 N 100kg max load between centers 3000 N 300kg Z-axis Table inclination 10 degrees Table drive hydr. 0-4 m/min X-axis Adjustment path of the infeed spindle 80 mm Rapid traverse (hydraulic) 50 mm Coarse adjustment travel air cushion 280 mm Infeed drive by DC motor Rapid traverse speed 48 mm/min/Ø Infeed process Grooving Longitudinal grinding 4 preselectable speeds mm/min/Ø 0.01-48 4 preselectable infeed rates mm/ 0.001-0.1 Firing during infeed grinding s 0-99 0-99 strokes Jog infeed mm/Ø 0.001 Grinding headstock Universal, swiveling degrees 0-180 Grinding wheel:Outer D x w 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, flat kW 5.5 (7.5) Drive power: Internal kW 2.2 Peripheral speed: Outer m/s 35 (50) Grinding wheel wear: Outer mm/Ø 160 Guard width mm 100 Grinding spindle diameter mm 60 Internal spindle mount mm 80 (100) Workpiece headstock: Drive infinitely variable: Mk 4 1/mm 30-270/ 50-450 Workpiece spindle can be fixed Spindle holder mm MK 4/24 Spindle nose for flange mounting: MK 4 mm cylindrical Ø63H6 x 6 Workpiece headstock can be swiveled on turning part degrees 0-90 Tailstock: Quill holder/ quill diameter mm MK4750 Quill stroke mm 45 Quill force N 100-800/ 250-1400 adjustable Manual quill actuation (foot switch) Quill fine adjustment +- 40µ Connected loads: Total connected load of the machine kW 6.5 -10 Grinding headstock kW 5.5 (7.5) Workhead kW 0.55 (1.1) Coolant cleaning kW 0.75 - 2.2 Lubrication pump guideways kW 0.1 Hydraulic pump kW 1.5 Hydraulic reservoir liter 80 Pneumatics bar 6

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. Hfodpfop T Uphox Ag Nen

Condition: refurbished (used), Year of construction: 1990, Karstens K11 1000 full equipment The cylindrical grinding machine was completely overhauled at PS-Karstens. The machine is inspected and in a very good condition. Since we are specialized in Karstens cylindrical grinding machines, we can offer you the complete service (electrical and mechanical) for the machine after purchase. Technical data: Center width: 1000 mm center height: 180 mm workpiece weight: 100 kg flying, 250 kg between centers grinding wheel diameter: 400 mm workpiece spindle: MK 4, speed infinitely variable 30-450 rpm, swivel range 0 - 90 ° tailstock: MK4, quill stroke 45 mm, cylinder fine adjustment quill force: 200-600 N, hydraulically operated via foot pedal table inclination: 10 degrees feed spindle adjustment travel: 80 mm rapid traverse path: 50 mm Coarse adjustment air cushion: 280 mm grinding spindle motor outside: 4 KW grinding spindle motor inside: 2,2 KW workpiece spindle motor: 0,55 KW Machine weight: Net 3800 Kg Infeed drive via 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. Infeed control for longitudinal grinding and plunge-cut grinding, input for return, infeed amounts, feeds, burnout times, empty strokes Digital displays for grinding spindle B axis ,workpiece spindle, X, Z axis from HEIDENHAIN Paper belt filter automat approx. 250 L similar to Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat Hfsdpfx Agsh Riwdj Njn

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. Hedpfxsw E Iy Ae Ag Nsfn

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, Hjdpfx Agoiv Auds Nsfn 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: 1988, Karstens K11 650 The cylindrical grinding machine was completely overhauled at PS-Karstens. The machine is checked and in a very good condition. Since we are specialized in Karstens cylindrical grinding machines, we can offer you the complete service (electrical and mechanical) for the machine after purchase. Technical data: Center width: 650 mm center height: 180 mm workpiece weight: 100 kg flying, 250 kg between centers grinding wheel diameter: 400 mm workpiece spindle: MK 4, speed infinitely variable 30-450 rpm, swivel range 0 - 90 ° tailstock: MK4, quill stroke 45 mm, cylinder fine adjustment quill force: 200-600 N, hydraulically operated via foot pedal table inclination: 10 degrees feed spindle adjustment travel: 80 mm rapid traverse path: 50 mm Coarse adjustment air cushion: 280 mm grinding spindle motor outside: 4 KW grinding spindle motor inside: 2,2 KW workpiece spindle motor: 0,55 KW Machine weight: Net 3800 Kg Infeed drive via 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 Hfjdpfx Agjh Rixxs Njn Central coolant supply for all grinding points Work headstock with infinitely variable drive with travelling and lockable spindle. Infeed control for longitudinal grinding and plunge-cut grinding, input for return, infeed amounts, feeds, burnout times, empty strokes Paper belt filter automat approx. 250 L similar to Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat

Condition: as good as new (ex-display), Year of construction: 2025, Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine Make Karstens Hfjdpfx Aoh Rftlog Non 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, with colored Siemens touch panel scale in X and Z axis make HEIDENHAIN. similar to Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat

Condition: as good as new (ex-display), Year of construction: 2025, Tip height 181 mm chip width 1000 mm largest grindable workpiece diameter 360 mm max. load on the fly 1000 N 100kg max load between centers 3000 N 300kg Z-axis Table inclination 10 degrees Table drive hydr. 0-4 m/min X-axis Adjustment path of the infeed spindle 80 mm Rapid traverse (hydraulic) 50 mm Coarse adjustment travel air cushion 280 mm Infeed drive by DC motor Rapid traverse speed 48 mm/min/Ø Infeed process Grooving Longitudinal grinding 4 preselectable speeds mm/min/Ø 0.01-48 4 preselectable infeed rates mm/ 0.001-0.1 Firing during infeed grinding s 0-99 0-99 strokes Jog infeed mm/Ø 0.001 Grinding headstock Universal, swiveling degrees 0-180 Grinding wheel:Outer D x w 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, flat kW 5.5 (7.5) Drive power: Internal kW 2.2 Peripheral speed: Outer m/s 35 (50) Grinding wheel wear: Outer mm/Ø 160 Guard width mm 100 Grinding spindle diameter mm 60 Internal spindle mount mm 80 (100) Workpiece headstock: Drive infinitely variable: Mk 4 1/mm 30-270/ 50-450 Workpiece spindle can be fixed Spindle holder mm MK 4/24 Spindle nose for flange mounting: MK 4 mm cylindrical Ø63H6 x 6 Workpiece headstock can be swiveled on turning part degrees 0-90 Tailstock: Quill holder/ quill diameter mm MK4750 Quill stroke mm 45 Quill force N 100-800/ 250-1400 adjustable Manual quill actuation (foot switch) Quill fine adjustment +- 40µ Connected loads: Hsdjtqf Rzepfx Ag Nsfn Total connected load of the machine kW 6.5 -10 Grinding headstock kW 5.5 (7.5) Workhead kW 0.55 (1.1) Coolant cleaning kW 0.75 - 2.2 Lubrication pump guideways kW 0.1 Hydraulic pump kW 1.5 Hydraulic reservoir liter 80 Pneumatics bar 6

Condition: as good as new (ex-display), Year of construction: 2025, Karstens K11 1000 Premium Retrofit Cylindrical Grinding Machine Make Karstens Technical data: Center width: 1100 mm center height: 180 mm / (250 mm = option) workpiece weight: 100 kg flying, 300 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 quill force: 200-600 N manual, (up to 2500 N possible, adjustable = option) table inclination: 10 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 3800 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 Hjdpfsh Rimmox Ag Nsfn Central coolant supply for all grinding points Work headstock with infinitely variable drive with travelling and lockable spindle. New infeed control digital with Siemens panel and Siemens PLC 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 similar to Studer/ Kellenberger/ Schaudt/ Tschudin/ Tacchella/ Dannobat