Center Hole Grinding Machine

Technica Zentroflex 14-SA-110 (CNC Control)

Condition: new, Year of construction: 2025, functionality: fully functional, workpiece weight (max.): 170 kg, grinding spindle speed: 45,000 rpm, spindle speed (min.): 5,000 rpm, spindle speed (max.): 45,000 rpm, clamping diameter: 140 mm, clamping length: 1,100 mm, Workpiece Clamping Diameter : ø 3 – 140 mm (Optional: ø 210 mm) Workpiece Diameter : ø 3 – 310 mm Workpiece Length : 50 – 1.100 mm Centre Hole Diameter : ø 1 – 60 mm (Optional ø 100 mm) Workpiece Weight : max. 170 kg (Optional 1,000 kg) Center Hole Angle : 60 ° Accuracy : < 1 µm (Submicron accuracy) Spindle Speed : 5.000 – 45.000 rpm Grinding Cone Movements : 3+1 Rotation Orbital rotation Stroke movement +1 Workpeice rotation Quirlig Grinding Technique : Included (Cross-hatched grinding pattern) Grinding Process : Semi-Automatic, CNC Control Panel : Beckhoff CNC Movements : Z-Axis Indurstry 4.0 Compatibility : Available Semi-Auto Grinding Cone Dressing : Included Workpiece Rotation : Available (as a option) Dust Extraction And Filtration : Available (as a option) Sectors : Precision Grinding, Aviation, Automotive, Machinery etc. Benefits: Sub-micron Precision: Achieve sub-micron (< 1 µm) precision in grinding thanks to Swiss engineering and a robust machine design. Sustainable Reliability: Ensure reliable and sustainable processing. Hedpfxsgb Ec Ho Acvok Cost Efficiency & High Productivity: Benefit from lower production costs and high productivity due to a short grinding process and reduced production times for subsequent processes (cylindrical grinding). Quirlig Grinding Technique: Experience an optimized grinding process with the Quirlig Grinding Technique. Properly ground center holes that have cross-hatched grinding pattern. The cross-hatched grinding pattern ensures that oil is retained when the workpiece is placed between the centers during the cylindrical grinding process, creating a micro oil layer. The micro oil layer prevents unwanted "dry running" during cylindrical grinding. Easy to Use CNC Control Panel: Benefit from very simple operation and grinding program recording with the Beckhoff control panel and Z-axis servo movement. Industry 4.0: Fully compatible with Industry 4.0 applications, thanks to the Beckhoff control panel. Low Maintenance Costs: Enjoy low maintenance costs throughout the machine's service life, thanks to Swiss-quality construction. The Zentroflex SA-series center hole grinding machines are designed to deliver high-precision cylindrical grinding in the aviation, automotive, and machinery sectors. Additionally, the Zentroflex SA-series is the ideal solution for recovering parts distorted after heat treatment or for reducing cylindrical grinding costs. Z-Axis movement is provided by servo motor in CNC form. The part is loaded-unloaded and clamped manually. Settings are made from CNC control panel and grinding is started by pressing the start button. No other manual setting or control is made during grinding. Contact us for more details.

Year of construction: 2024, condition: as good as new (ex-display), -usable internal dimensions: D=970mm H=540mm (other sizes on request) -touch screen -injection pressure: 3 bar -basket load: 200kg Hsdpfxef A Nq Uj Acvjk -Tank volume: 210L -Standard accessories: - Oil skimmer - Frame, cover and housing made of stainless steel - Time-controlled electric steam extraction - Reinforced basket in stainless steel - Stainless steel electric pump - Stainless steel filter on the suction side of the pump - Stainless steel heating elements - Mechanical basket rotation with gear motor - Electrical system IP 65, control via SPS (DGT V4) - Automatic water supply - Safety limit switch monitors the cover opening - Spray nozzles in stainless steel - Weekly timer for heating and oil separator - Operating hours counter

Condition: as good as new (ex-display), Year of construction: 2025, Offered is a External cylindrical grinding machine EMAG Weiss WPG 7 - external cylindrical grinding at the highest level and on the smallest footprint. Footprint of the WPG 7 is only 1,800 x 2,400 mm. The machine is perfect for machining small shafts or pinions. The WPG 7 can be loaded manually as well as by automated solutions (such as chain conveyors and linear gantry). Hsdpfxstlrkbe Acvok CONTROL Fanuc 0i TECHNICAL DATA Workpiece length: max. 250 mm grinding Ø: max. 80 mm Center height: 100 mm Center length: 380 mm Workpiece weight: max. 30kg Grinding wheel Ø: max. 500x 80 mm Price, delivery time and equipment of the machine according to agreement.

Condition: excellent (used), functionality: fully functional, KELLENBERGER PRECISION UNIVERSAL CYLINDRICAL GRINDING MACHINE MODEL: 1000 U YEAR OF MANUFACTURE: 2000 PARTIAL OVERHAUL: 2026 Centre height: 175 mm Grinding length: 1000 mm Equipment: - Standard accessories - Standard workpiece headstock MK5 with adapter flange DIN 55027, size 5 Hjdeyf E Suspfx Acvek - Splash guard hood for the above - Tailstock with fine adjustment, MK4 - Internal grinding attachment with protective cover for grinding spindle D:80 mm for belt-driven spindles - FISCHER internal grinding spindle type HJN 842, incl. grinding mandrels (4 pieces, choice) - HJNZ 42 collet chuck - Oil mist lubricator for HJN spindles - STREULI magnetic paper band filter system, type: SPB 2 - Coolant supply through the workpiece spindle - HEIDENHAIN digital length measuring system on X and Z axes - Sine bar on the workpiece headstock incl. alignment arbor MK5 - Permanent magnetic chuck, D:200 mm - Three-jaw chuck, D:160 mm - Four-jaw chuck, D:160 mm - Collet attachment for Schaublin collets B32 - Set of B32 collets, D: 1.0–30.0 mm, increment 0.5 mm (59 pieces) - Dial indicator stop for table swivel with indicator 0.01 mm - Table fixed stop - Dressing stop for internal grinding - LED machine lamp - Various grinding wheel flanges, left (2 pieces) - Pneumatic table load relief - Swiveling dressing device for external, face, or internal grinding operations - Set of vibration damping pads - New three-color paint finish (light grey RAL 7035 / blue RAL 5012 / dark grey RAL 7016) - New acceptance protocol according to KELLENBERGER standard - Documentation - CE conformity The machine is currently being overhauled, sample photos shown!

Condition: refurbished (used), Year of construction: 2025, functionality: fully functional, machine/vehicle number: 1315/451, Completely overhauled: Mechanics, geometry, hydraulics, and electrical parts (checked and/or replaced) Wheelhead: Disassembled, parts cleaned, worn or defective components replaced, motor overhauled, bearings replaced, belts replaced, spindle disassembled, seals and O-rings replaced, adjustments made. Newly painted. Hodpfxew U Ry Ne Acvok Workhead: Disassembled, parts cleaned, worn or defective components replaced, motor overhauled, belts replaced. New spindle bearings. Newly painted. Tailstock: Disassembled, inspected, overhauled. Hydraulics: Disassembled, motor checked, hoses replaced, defective and worn parts replaced. Hydraulic block checked. X-axis: Disassembled, all worn parts such as O-rings, seals, segments, etc. replaced, hydraulic piston overhauled, table ground. Z-axis: Disassembled, table ground, worn or defective parts replaced, hydraulic piston overhauled, newly painted. Electrical cabinet: Completely checked, various relays replaced. Paintwork: Colors: White RAL 9003 and Grey RAL 7011 Geometry according to manufacturer's protocol. Various accessories checked and cleaned. Origin: CH Voltage: 380 / 50 / 3 Net weight: approx. 2,200 kg Customs tariff number: 8460.2920 TECHNICAL SPECIFICATIONS Nominal distance between centers: 600 mm Max. distance between centers (with extended headstock): 750 mm Center height, standard: 125 mm Center height with interchangeable pads for heads: 175–250 mm Max. workpiece diameter (125 mm center height): 250 mm Max. workpiece diameter with interchangeable pads: 350–500 mm Swiveling range of table in each direction: 10° Max. grinding length for flat surfaces (max. width = 200 mm): 900 mm Continuously variable hydraulic table speed: up to approx. 6 m/min Table reversal delay: 0–5 sec Grinding wheel for external grinding, diameter - width - bore: 400x50x127 mm Grinding wheel for flat surface grinding: 250x13x76 mm Wheelhead spindle speed: 1,500/1,700/2,200/3,600 rpm Wheelhead swiveling range: 270°, with indexing every 90° Vertical travel of wheelhead, center height: 125–350 mm Transverse travel of wheelhead: 285 mm Hydraulic rapid traverse stroke: 40 mm Intermittent infeed of wheel by table reversal: 0.001–0.03 mm/dia Continuous infeed for plunge grinding: 0–0.9 mm/dia Micrometric infeed stop, by division: 0.001 mm/dia Workhead swiveling range: 360° Workhead spindle speed, stepless: normal/special: 20–400 / 10–400 rpm Internal taper of workhead/tailstock: Morse 5/3 Wheelhead motor: approx. 4 HP All technical specifications are given without obligation and subject to errors or omissions.

Condition: used, Year of construction: 1992, spindle speed (min.): 7,500 rpm, spindle speed (max.): 24,000 rpm, 4 motorized grinding spindles (liquid-cooled, purge air / oil mist lubrication) including REFU HF frequency converter, e.g. for powering the spindles of a Voumard 400 CNC T4. Grinding spindle GMN TSSV 170-7500 7,500 rpm, 350V, 19.3A, 7.5kW, 250 Hz Grinding spindle Voumard BM15-170 15,000 rpm, 350V, 35A, 18kW, 250 Hz Hjdpfx Acol Tn Afevjk Grinding spindle Voumard BM18-15032 18,000 rpm, 350V, 28.5A, 12kW, 600 Hz Grinding spindle Voumard BM24-150 24,000 rpm, 350V, 27A, 12kW, 800 Hz REFU HF Converter 316/25 High-frequency converter (inverter, frequency inverter) Frequency converter / inverter for powering motor spindles GMN tool spindle, motorized grinding spindle The spindles are fully functional, sold as is – manufacturing year approx. 1992 A collection of various grinding spindle shafts / arbors for grinding wheels is available for these spindles and can be purchased separately. Price / details on request All technical data subject to error or omission. We sell exclusively to countries within the European Community.

Condition: good (used), WEILER Lathe COMMODOR B Year of manufacture: 1987 with HEIDENHAIN 3-axis digital readout Center height: 190 mm Center distance: 750 mm Swing diameter over cross slide: 190 mm Hjdpfx Aoxz Rc Njcvok Spindle bore: 56 mm Spindle speed range: 25–2,000 rpm Number of speed steps: 18 Motor power: 2/4 kW Longitudinal feed: 0.022–0.8 mm/rev Cross feed: 0.011–0.4 mm/rev Number of feeds: 200 Metric thread pitches: 0.3–10 mm Weight: approx. 1,500 kg Dimensions: 2,350 x 1,000 x 1,450 mm Technical data not binding! This machine is ideal for users who require a large spindle bore. Accessories/Equipment: - 3-axis HEIDENHAIN digital display - Independently adjustable faceplate - Electrically interlocked chuck guard - Multifix toolpost size "B" - Machine lamp - Coolant system - Rear chip guard - 2 emergency stop buttons - Bed stop - Fixed steady rest (as new) - Traveling steady rest (as new) - Röhm 3-jaw chuck - Revolving center - Fixed center - Catch plate - Faceplate Available from March 2026 from Vocational Training Center "Due to its quality and price, this machine is not suitable for private individuals." Condition: good to very good

Condition: used, grinding diameter 350 mm grinding length 600 mm centre height 175 mm grinding wheel diameter 400 mm grinding wheel width 50 mm bore 127 mm MK5 work piece spindle speed 20-400 U/min grinding head swivelling 360 ° grinding spindle head - swivable 180 + - ° grinding spindle speed 1500,1700,2200 U/min 0-9,99 mm/Ø 0-9,99 mm/Ø ±10 ° longitudinal feed of the table 1100 mm table speeds 0,02-6 m/min 130 kg 130 inkl. Spannung kg cross travel max. 270 mm 80 mm tailstock quill taper MT 3 quill travel 30 mm total power requirement 6,5 kW weight of the machine ca. 3,05 t dimensions of the machine ca. 4 x 2 m Overhauled according to Kellenberger guidelines including new, modern and future-proof control system. Photo of already delivered machine in centre distance 1000mm. -Operation via the touch panel is extremely simple. -The symbols on the control panel are practically identical to the original original control system, so there is no need for familiarisation. Hedpfx Aouxft Eecvsk -Diagnostic function with display of PLC messages and digital I/O -Dressing function can be extended or changed at the customer's request. -Orientated spindle stop of the workpiece spindle possible on request. -New maximum infeed of 40 mm can be extended on request. -Digital display in 2 axes. Resolution x-axis 0.5my Options: -Encoder with digital display in the workpiece headstock -Rotary encoder with digital display in the grinding headstock (no height adjustment with spindle possible) with spindle possible) -New stable internal grinding device diameter 80mm or 100mm with height adjustment. -Increase of the centre height to max. 225mm -Speed control for the grinding spindle Included: -Operating tool -Clamping tube for chuck Further accessories on request. The x-axis of the machine has an electronically controlled infeed system with stepper motor drive. Hydraulic longitudinal and rapid traverse table movement. Versatile application in production for external cylindrical and internal internal grinding or for external, face and internal grinding in one clamping clamping of individual parts. Possible options: -Semi-automatic dressing cycles for external and internal grinding -automatic dressing compensation. -Measuring control

Condition: used, TECHNICAL DETAILS Hedpfeuhbplox Acvok - maxi module to be cut : 1.5 [mm] - maxi diameter to be cut: 70 [mm] - maxi length to be cut: 100 [mm] - part maxi length: 200 [mm] - number of tooth mini to be cut: 3 - number of endless screw threads (special accessories): 1 - helix angle: 0-90[°] - milling tool maxi diameter: 50 [mm] - 11 milling tool normal speeds - speed normal machine: 226 – 2100 [rpm] - power: 1.5 [kW] - net weight: 1035 [kg]. EQUIPMENT - with part loader

Condition: excellent (used), Year of construction: 2014, travel distance X-axis: 1,600 mm, travel distance Y-axis: 1,100 mm, travel distance Z-axis: 1,400 mm, rapid traverse X-axis: 60,000 m/min, rapid traverse Y-axis: 60,000 m/min, rapid traverse Z-axis: 60,000 m/min, table width: 1,000 mm, table length: 1,250 mm, table load: 3,000 kg, number of slots in tool magazine: 180, Work piece up to 1530 x 1295 x 3500 Kg Tool size up to 650 mm length and 30 Kg Tool size up to 400 x 250 mm and 30 Kg Extende feed rate up to 15 kN-100% ED Coolant Filtration     BLUM Laser NT 3D Quick ser MPC protection 3D Measuring probe DXF Import   Tool package 180 Tool HSK-100A 2 x Cast iron angle plates 1500 mm   15000 Working hours 1e owner machine  X - Travel: 1600mm Y - Travel: 1100mm Z - Travel: 1400mm B-Axis indexing: 360000° Table Length: 1250mm Table Width: 1000mm Table load: 3000 Number of pallets: 2 Feed rate X-Axis: 60000mm/min. Feed rate Y-Axis: 60000mm/min. Feed rate Z-Axis: 60000mm/min. Spindle Taper: HSK-100ISO/Bt/Mk Power on spindle: 52kW Speeds / ranges: 12000Rpm ATC / revolver: 180 Number of controlled axis:4 Length: 9170mm Width: 6320mm Height: 3969mm Hjdpfex Sqptex Acvek Weight: 39500kg