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: 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 Hjdpoiv Audsfx Ah Njng 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: good (used), Year of construction: 2000, operating hours: 10,000 h, functionality: fully functional, turning length: 1,105 mm, turning diameter: 610 mm, spindle speed (max.): 3,500 rpm, spindle bore: 70 mm, travel distance X-axis: 580 mm, travel distance Y-axis: 210 mm, travel distance Z-axis: 1,137 mm, mount diameter: 63 mm, rotational speed (max.): 6,000 rpm, type of input current: AC, Equipment: rotational speed infinitely variable, The machine is in good condition. Major maintenance work in recent years: 30.04.2020: Milling spindle overhauled CHF 35,000 16.07.2021: Software update (Wenk AG) CHF 1,600 20.06.2022: Central lubrication pump replaced CHF 400 (All prices are in CHF) Hnjdpfx Aexp Hmash Njg Known issues: - Error message during startup - Coolant from internal cooling leaks out at the rear of the milling spindle - Overload message when the machine is cold and running at 100% rapid traverse - Over 150 different tool holders included - Spare magazine sleeves for tool magazine - Spare limit switches for tool changer position monitoring - 2 x 3-jaw chuck diameter 250 mm (mounted for inspection) - 1 x 3-jaw chuck diameter 250 mm - 1 x 3-jaw chuck diameter 300 mm - 1 x 4-jaw chuck diameter 400 mm - 2 sets of hard jaws for external clamping, short version - 1 set of hard jaws for external clamping, long version - Various sets of used soft jaws - Spare filters for the high-pressure system (Kowap) (5 units in stock; approx. 2 units available by delivery – 1 filter approx. CHF 20-25) - Coolant cleaning system or oil separator (custom built) - Storage cabinet customized to fit the tool magazine for KM63 holders, numbered for 80 positions - Specific clamping equipment suited for the KM63 holders, allowing direct indexable insert clamping - Iscar disc milling cutter suitable for a D160 mm holder, 4 mm width - Gear milling cutter suitable for a holder (custom built – for soft jaws, pitch = 1.5 mm) - Cleaning/deburring brush suitable for a holder We are also happy to provide leasing and financing offers for the machine. A viewing appointment can be arranged upon request.

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 Hsdewy Ufujpfx Ah Njng 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 - 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 Hodowy Rnfjpfx Ah Neng

Condition: good (used), Year of construction: 1999, Parts shown by hand not come. Hnodewbz Tujpfx Ah Njg

Condition: used, Year of construction: 2007, turning diameter 42 / 140 mm turning length 170 mm control Mitsubishi Meldas turning speeds 80-8.000 U/min c-axis 0,001° turret (x-stations) 2x 12 (VDI 20) angetrieben turning speeds 45-4.500 U/min spindle 1 kW gripping station 42 mm turning speeds 60-6.000 U/min c-axis 0,001° number of controlled axis 8 collet unit 48 DIN 6343 . Number of working hours 10769 h chip conveyor ja/yes Bj. 2018 total power requirement 7,5 / 11 kW weight of the machine ca. 3,3 t dimensions of the machine ca. 2,4 x 1,6 x 2,2 m CNC turning and milling machine CITIZEN BOLEY BE 42, year 2007 Simultaneous working with 7 axes on main and pick-up spindle very good condition, operating hours 21.999h (September 2024) Accessories: Hodpovyli Ejfx Ah Njng # Various tool holders: 5x axiale driven tool holder # collet chuck for collets type 173E # additional coolant cooler # Knoll chip conveyor, year of construction 2018 The Boley BE 42 is without barloader. Loading magazine interface has been fitted. Complete battery exchange on 22.12.2025

Condition: like new (used), Year of construction: 1987, functionality: fully functional, machine/vehicle number: 61373, IT IS IN WORKING CONDITION Hedpfovwlf Iex Ah Neng

Condition: excellent (used), Year of construction: 2008, Control system: Siemens 840-D Hnodpfovgxfyjx Ah Nsg Travel X: 1450 mm (longitudinal) Travel Y: 1100 mm (vertical) Z travel: 1300 mm Pallet size: 800 x 1000 mm Table load: 2000 kg NC rotary table with direct drive Positioning: 0.001° Max. Max. speed of the rotary indexing table: 60 rpm Rapid traverse: 60 m/min Spindle motor: 50 KW (25%) / 28 KW (100%) Spindle torque: 1210 NM / 680 NM Spindle speed: 6000 rpm Spindle taper: HSK 100 Tool changer: 80 places Max. Tool diameter: 325 mm Max. Tool length: 800 mm Max. Tool weight: 35 kg Workpiece diameter: 1600 mm Workpiece height: 1400 mm Workpiece weight: 2000 kg Coolant through spindle Coolant shower Tool breakage detection in the tool changer Spindle motor load monitoring Spindle extension by 100 mm Electronic handwheel Machine is supplied with many tools

Condition: refurbished (used), Year of construction: 2025, operating hours: 36 h, functionality: fully functional, machine/vehicle number: 1024-54, Country of Manufacture: Switzerland Voltage: 380/50/3 Net weight: approx. 1600 kg Customs tariff: 8460.2920 Dimensions: 235 x 155 x 145 cm TECHNICAL FEATURES: MAIN DIMENSIONS: Centre height: 100 mm Distance between centres: 400 mm LONGITUDINAL SLIDE: Max travel: 420 mm Minimum automatic travel: 1 mm Table feed speed: 100–3500 mm/min Overtravel delay: 0–5 sec. Maximum table swivel (400/650 mm): 30°/15° CROSS SLIDE: Max travel: 170 mm Rapid traverse: 30 mm Plunge depth (diameter): 1.9 mm Feed rate 1: 0.03–1.5 mm/min Feed rate 2: 0.02–0.3 mm/min Plunge feed per impulse: 0.0005–0.025 mm Hjdew T Sc Nepfx Ah Njng WHEELHEAD: Grinding wheel (diameter x width x bore): 350 x 32 x 127 mm Drive power: 3 kW Peripheral speed: 30 m/s Spindle speeds: 1600/1975/2200 rpm Manual stroke: 120 mm Swivel to right: 15°/30° Optional wheel guard for wheel set max width: 50 mm WORKHEAD: Swivel range: 0°–90° Spindle speeds: 80/175/380/800 rpm Internal taper: Morse 4 Collet type: W-20 Drive power: 0.5 kW Maximum workpiece weight: 20 kg Load for in-the-air grinding: 12 Nm Optional stepless drive speed range I: 30–300 rpm Optional stepless drive speed range II: 120–1200 rpm TAILSTOCK: Internal taper: Morse 2 Quill travel: 20 mm GUARANTEED WORKING ACCURACY: Generator straightness: Between centres: 400 mm Measured over 400 mm: 0.002 mm Between centres: 650 mm Measured over 650 mm: 0.003 mm Roundness accuracy for in-the-air grinding: 0.0004 mm CONNECTION VALUES: Power consumption: max. 8 kVA Permissible voltage variation: –15% / +10% Permissible frequency variation: ±3% Compressed air: 5 bar All technical specifications are given without obligation and subject to errors or omissions.

Year of construction: 1999, condition: ready for operation (used), Travel X/Y/Z: 1050mm/800mm/880mm, B-axis: 360°, table dimensions X/Y: 630mm/630mm, number of pallets: 2, max. workpiece weight: 1500kg, speed: 7000rpm, tool holder: SK50, power: 30kW, tool positions: 80, max. tool diameter: 135mm/260mm, max. tool weight: 30kg, rapid traverse: 40m/min. Machine dimensions X/Y/Z: approx. 6400mm/2600mm/3200mm, weight: approx. 19700kg, control: Mazatrol 640M PC-Fusion-CNC. Including 2-fold pallet changer for 630mm/630mm pallets. Documentation available. On-site inspection is possible. Hodpfxevnd Suj Ah Neng