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: Hnodpfx Ajgb Ec Hsaajk 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. 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.

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 Hodpsx Sqptofx Aaaonk 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 Weight: 39500kg

Condition: ready for operation (used), Year of construction: 1983, turning length 1500 mm turning diameter 475 mm turning dia. over face-slide 290 mm turning dia. in gap 655 mm turning speed range 14.0 - 2000 U/min feeds - longitudinal 0.05 - 0.736 mm/min spindle passage 61.0 mm tail stock MK 4 quill stroke 200 mm diameter of quill Ø 70.0 mm spindle head DIN 55022 GR 6 bed width 330 mm voltage 380 V total power requirement 7.5 kW weight 2400 kg range L-W-H 3080 x 1160 x 1485 mm From a maintenance workshop (university hospital) in good condition (!!) With original documentation + machine card Features: - Robust electric motor-driven conventional lathe - KLOPFER 4-jaw chuck Ø 200 - MULTIFIX steel holder with 3x inserts - Movable steel holder guard - Adjustable bed stop - Movable tailstock incl. center point Hodpoxfwc Rjfx Aaajnk - Swiveling machine light - Machine swing feet - Chip guard (movable from behind) - EMERGENCY stop button at the front - Original operating instructions + machine card

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. -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. Hjdpfx Aaouxft Ejasnk 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, 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 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. Hnjdpfx Aol Tn Afsaaek

Condition: good (used), Year of construction: 2014, spindle turning speed range 170 - 18000 U/min weight of the machine ca. 7,5 t dimensions of the machine ca. 5,00 x 4,00 x 2,20 m --> Control conversion (2014) to Siemens Sinumerik 840D Solutionline --> Overhaul of the new control system in 2016 --> Technical data Grinding diameter: 20 - 300 mm --> Oscillation diameter: 350 (500) mm Hsdpfx Aasw Intajajnk --> Workpiece length: 300 (1300) mm --> Recommended grinding depth up to: 300 mm --> Grinding table stroke Z-axis (total): 650 (950) mm --> Resolution: 0.001 mm --> Rapid traverse: 12 m/min-1 --> Grinding stroke speed: 0 - 9.99 m/min-1 --> Feed rate: 0 - 99.99 m/min-1 --> Step feed value during reversal: 0 - 0.999 mm --> Grinding table stroke X-axis (total): 150 mm --> Resolution: 0.001 mm / Ø --> Rapid traverse: 5 m/min-1/R --> Grinding stroke speed: 0 - 5 m/min-1/R --> Feed rate: 0 - 99.99 m/min-1/R --> Step feed value during reversal: 0 - 0.999 mm / Ø --> Swivel capability of the workpiece headstock: --> B-axis: -32° (-23°) / +2° --> Resolution: 0.0001° (0.36") --> U-axis stroke (total): 300 mm --> Resolution: 0.001 mm / Ø --> Travel speed: 5 m/min-1 --> Centre height above workpiece table: 200 (300) mm --> Centre height above grinding table: 330 (430) mm --> Workpiece spindle passage: 50 (70) mm --> new in 1988

Condition: used, TECHNICAL DETAILS - maxi module to be cut : 1.5 [mm] Hodpfxsuhbplj Aaasnk - 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: good (used), Centre bore 2- 50 mm Diameter of workpiece 8 - 125 mm Lenght of workpiece 50 - 1000 mm Grinding wheel speeds 13'000 - 45'000 rpm Hedpfx Aajrivlujaenk Misc.accessories MARCELS MASCHINEN AG

Condition: used, grinding diameter 350 mm grinding length 1000 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 ±8 ° longitudinal feed of the table 1100 mm table speeds 0,02-6 m/min 130 kg cross travel max. 270 mm 130 inkl. Spannung kg 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. -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: Hnedpouxfupjfx Aaaek -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: excellent (used), Year of construction: 2009, functionality: fully functional, The STUDER S242 is a versatile hard-fine machining center for grinding, turning, and milling operations on medium-sized workpieces. It is ideal for complete machining in a single setup – from external and internal grinding to hard turning and drilling/milling with driven tools. With the Studer S242, workpieces in the rotational sector can be finished to very high precision. Thanks to integrated automation, this machine is suitable for both single-part and series production. The S242 is also equipped with a VDI turret featuring driven tools. Center distance: 800 mm Swing diameter: 180 mm Max. workpiece weight: 60 kg X-axis: travel 220 mm, resolution 0.00001 mm Z-axis: travel 1,600 mm, resolution 0.00001 mm Hnsdpfx Aaew Hqm Ijaok Grinding spindle: 6.8 kW, grinding wheel Ø 400 x 50 mm, automatic balancing Workpiece spindle head: AC synchronous spindle motor 10.5 kW, up to 7,500 rpm Tailstock variants: quill tailstock with integrated position measuring system Machine bed: Mineral cast Granitan® S103 for excellent damping and thermal stability Software & Control: Fanuc 31i-A control with 15" touchscreen Dialog language: German for StuderWIN Integrated measuring control with Renishaw LP2 touch probe, switchable to the turret Special features & advantages: Complete machining in a single setup → reduced main and secondary times High dimensional accuracy and surface quality due to Granitan® machine bed Short changeover times, suitable for everything from single-part to large-series production Flexible clamping system and modular tool configuration High process reliability thanks to integrated measuring and sensor systems Dimensions & Weight: Total weight: 12,000 kg Connected load: 45 kVA Compressed air requirement: min. 5.5 bar