Cylindrical grinding machine

Karstens K11 650

Condition: as good as new (ex-display), Year of construction: 2026, Karstens K11 650 Premium Retrofit Cylindrical Grinding Machine Manufacturer: Karstens Technical specifications: Dcedpfx Afoiv Audjnsc Centre distance: 750 mm Centre height: 180 mm / (250 mm optional) Workpiece weight: 100 kg (between centres) – 250 kg (supported between centres) 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: MT 4, quill stroke 45 mm, quill offset adjustment Quill force: 200–600 N manual, (up to 2500 N adjustable as option) Table swivel adjustment: 12.5 degrees Cross slide travel: 80 mm Rapid traverse distance: 50 mm Coarse adjustment with air cushion: 280 mm External grinding spindle motor: 4 kW / (5.5 kW optional) Stepless speed setting 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: 80 litres Machine weight: Net 3,500 kg Feed drive via DC motor Air-cushioned rapid adjustment of the grinding spindle head for fast and precise positioning. Separate drive for external and internal grinding spindles. Fully automatic operation, feed movement controlled via handwheel switch: rapid feed, rapid return, grinding operation, feed stop, mym-feed. Automatic longitudinal grinding cycle Central coolant supply for all grinding zones Workpiece headstock with steplessly adjustable drive, with live and lockable spindle. Digital feed control with Siemens panel and Siemens PLC for plunge and traverse grinding, input for retraction, infeed values, feed rates, spark-out times, idle strokes, compatible with traditional Karstens infeed control, with colour Siemens touch panel. Scale in X and Z axis by HEIDENHAIN. Comparable with Weiss / EMAG / GP cylindrical grinders / Studer / Kellenberger / Schaudt / Tschudin / Tacchella / Dannobat / Bahmüller / Fortuna.

Condition: reconditioned (used), Year of construction: 1999, Universal Tool Milling Machine TOS FNGJ 32 3-axis Heidenhain digital readout Year of manufacture: 1999 Travel: X 600 Y 400 Z 400 mm Spindle speed range: 40 – 2000 rpm Supplied with the following accessories: Fixed angle table, 800 x 400 mm clamping surface Vertical milling head Extendable quill Various SK 40 tool holders Safety guard Dodpfx Afjxc It Ienjcc Chip tray Machine lamp Automatic central lubrication pump for X, Y, Z axes Coolant system 4 machine leveling pads

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 - External grinding spindle motor: 4 kW - Internal grinding spindle motor: 2.2 kW Dcedpfxjwy Rnfe Afnoc 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

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 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 Dcsdpfx Aswy Ufuofnjc

Condition: refurbished (used), Year of construction: 2026, functionality: fully functional, center height: 150 mm, total length: 620 mm, Mechanics: All wear parts of the machine are replaced, including the infeed spindle in the X-axis. All assemblies are restored to as-new condition. After the overhaul, the machine is comparable to a new machine. Geometry: The machine is completely dismantled down to the guides. Before the geometry of the individual tables and assemblies can be restored, both guides of the X and Z axes are scraped by hand and restored to as-new condition. After completion, the machine receives a measurement report in accordance with the manufacturer's specifications. Painting: Once the geometry of the machine has been restored, it is prepared for repainting. All housings, tables and the machine bed are stripped of old paint, cleaned and repainted. Hydraulics: The entire lubrication system, including the lubrication unit, is replaced. The hydraulic unit is also completely overhauled. Conventional internal cylindrical grinding machine TSCHUDIN HTG 610I Equipment of the machine: Technical data: Center height: 150 mm Center width: 680 mm Grinding length: 620 mm Weight and space requirement of the machine: 2500kg // 2340x1445x1900 mm Machine equipment (standard): 1 pc. Workpiece headstock MK5 1 pc. Control panel 1 pc. Holder for internal grinding spindle 1 pc. Speed control unit for belt spindle (UJ50 / UJ80) FISCHER 1 pc. Hydraulic unit Dsdpjurw Uysfx Afnscc Optional: - Digital measuring system 2-axis - Freely adjustable speed (1-800 rpm) incl. soft start (higher speeds are optionally possible after clarification of technical details) - Separate low speed for part alignment

Condition: new, BRAND NEW MACHINING CENTER HEIDENHAIN TNC 7 Digital Path Control HEIDENHAIN 19" TFT Monitor HEIDENHAIN package: motors, measuring systems, and HR 510 handwheel Dcedpfx Ashy Artsfnoc X-axis: 650 mm Y-axis: 700 mm Z-axis: 645 mm Table diameter: 410 mm Maximum workpiece diameter: 500 mm Maximum spindle speed: 12,000 rpm (oil-cooled with MQL) Spindle taper: SK 40-BIG PLUS (BVD 40) Maximum spindle drive power: 17 kW ICS – internal coolant supply – 20 bar Rapid traverse X, Y & Z: 30,000 mm/min Positioning accuracy: ± 0.005 mm Repeatability: ± 0.003 mm ATC tool changer with double gripper: 30 positions (optionally up to 80 tools) Hinged belt chip conveyor Fully enclosed Only inquiries from Germany will be answered.

Condition: used, x-travel 1050 mm y-travel 600 mm Dsdpfevnh Umsx Afnecc z-travel 600 mm control Fanuc weight of the machine ca. 7200 kg

Condition: reconditioned (used), Year of construction: 2008, functionality: fully functional, center height: 175 mm, type of input current: three-phase, spindle speed (max.): 1,500 rpm, spindle speed (min.): 1 rpm, feed length X-axis: 285 mm, feed length Z-axis: 800 mm, overall weight: 4,000 kg, rapid traverse X-axis: 5 m/min, rapid traverse Z-axis: 10 m/min, input voltage: 400 V, CNC Cylindrical grinder STUDER S33 TECHNICAL CHARACTERISTICS: Year of manufacturing: 2008 CNC control: FANUC 21i-TB Software installed: StuderGrind Centre distance: 650 [mm] Height of centers: 175 Stroke X axis: 285 [mm] Min. Stroke speed X axis: 0.001 [mm/min] Max. Stroke speed X axis: 5000 [mm/min] Resolution X axis: 0.0001 [mm] Stroke Z axis: 800 [mm] Min. Stroke speed Z axis: 0.001 [mm/min] Max. Stroke speed Z axis: 10000 [mm/min] Resolution Z axis: 0.0001 [mm] B axis swivelling stroke: -15 [°] / +195 [°] B axis indexing precision: Hirth 1 [°] Workpiece spindle nose: MT5 Workpiece spindle min. speed: 1 [rpm] Workpiece spindle max. speed: 1500 [rpm] Max. part weight in part holder headstock between centres: 80 [Kg] Type of attachment tailstock: MT3 Tailstock quill stroke: 35 [mm] Tailstock quill diameter: 50 [mm] Tailstock fine adjustment: +/- 40 [mm] Supply voltage: 400 [V] Total power required: 20 [kVA] Weight: 4000 [Kg] INCLUDED EQUIPMENT: x1 internal grinding spindle type 102560B – speed: 60,000 [rpm] x1 hydraulic swiveling dressing attachment x1 fixed dressing unit mounted on the table x1 rotating wheel dressing unit (electrical) x1 3-jaw chuck Ø170 [mm] - MT5 x1 4-jaw chuck Ø170 [mm] - MT5 x1 magnetic chuck Ø170 [mm] - MT5 x1 2-point steady rest x1 pneumatic tailstock lift x1 pneumatic upper-table lift x1 longitudinal slide with rotary table - swiveling up to 8.5 [°] x1 automatic B-axis turret wheelhead – Hirth gearing 1 [°] x1 C-axis for thread and form grinding x1 workpiece probe MOVOMATIC C25 x1 contact control device DITTEL SENSITRON 6 x1 semi-automatic wheel balancing device MPM type BMT100M x1 paper filtration unit ARO TECHNOLOGIES type 5491.246A01 x1 mist extraction unit AIR-FRESH SERVICE type FMN-V12 x1 foot pedal x1 electrical cabinet air conditioner x4 external grinding wheel flanges x1 set of lifting equipment x1 axis bracket (for transportation of the machine) Dsdjxywhpspfx Afnjcc x1 set of operating manuals (French, English, and German) More information upon request.

Condition: refurbished (used), Year of construction: 2025, operating hours: 50 h, machine/vehicle number: 3018-04, Country of manufacture: Switzerland Voltage: 380/50/3 Net weight: 3100 kg Overall dimensions: 230x155x170 cm Installed power: 13 kVA Customs tariff position: 8460.2920 TECHNICAL SPECIFICATIONS MAIN DIMENSIONS Distance between centers: 650 mm Grinding capacity SpW+bs: -80 Stroke: 700 LONGITUDINAL SLIDE Max stroke: SpW+50 mm Minimum automatic feed: 1.5 mm Speed: 50-5500 mm/min Reversal delay: 0-6 sec Maximum table swivel: 12°/10°/8.5°/6° Pneumatic relief for table and workhead CROSS SLIDE Max stroke: 300 mm Rapid traverse: 60 mm Plunge grinding depth in diameter: 3.4 mm Feed 1: 0.012-6 mm/min Feed 2: 0.012-1.2 mm/min Feed per pulse: 0.001-0.05 mm GRINDING WHEEL HEADSTOCK Left-side wheel, external grinding: 400x80x127 mm Drive power: 5.5 kW Peripheral speed: 35 m/s RPM: 1670/2110 min-1 Internal grinding device for belt-driven spindles, including drive unit: 1.5 kW WORKHEAD Swivel range: 0-90° Continuously variable RPM: 30-1000 min-1 Internal taper: Morse 5 Collets: W-25 Drive power: 0.55 kW Maximum workpiece weight between centers: 130 kg Grinding load between centers: 100 Nm Dcodpfsw T Sd Tsx Afnoc TAILSTOCK Internal taper: Morse 3 Quill stroke: 35 mm Fine adjustment for cylindricity correction: ± 40 μm TECHNICAL CHARACTERISTICS: GUARANTEED WORKING ACCURACY Straightness of the generator over 630 mm: 0.003 mm Roundness during chuck grinding: 0.0003 mm CONNECTION VALUES Maximum absorbed power: 13 kVA Maximum permitted voltage fluctuation: -15%/+10% Maximum permitted frequency variation: ± 3% Required compressed air pressure: 5 bar Unless otherwise stated or in case of error or omission, these technical details are provided without engagement.

Condition: good (used), Year of construction: 2002, HEIDENHAIN TNC 430 control Dedpfx Afewglfxsnecc Spindle speed 20–9,000 rpm Travels X = 500, Y = 400, Z = 400 mm Tool holder SK 40 16-station tool changer Rotary table with B and C axes Clamping surface Ø 700 x 500 mm Max. table load 200 kg Infrared probe for workpiece measurement