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, warranty duration: 12 months, Workpiece Clamping Diameter : ø 3 – 140 mm Workpiece Length : 50 – 1.100 mm Centre Hole Diameter : ø 1 – 100 mm Workpiece Weight : max. 170 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) Nlodpfx Aswhi Sreh Ujk 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. 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: 2007, condition: used, max. wheel diameter 400 mm gear width - mm max. module - workpiece dia. 36-300/400 mm axis distance 135-290 mm spindle turning speed - stepless 3000 1/min dist. between centers 100-550 mm Control weight of the machine ca. 4000 kg dimensions of the machine ca. 2000x3055x2788 mm Test method: Njdpfx Asgr Harjh Ujlk - Single flank rolling test - Double flank rolling test - Structure-borne noise test - Heli testing in two-flank contact. Features: - Use of up to 6 test slides - Highest testing accuracy and repeatability - Machine table with workpiece drive - Swiveling pneumatic unit - Spray oil lubrication (type: Vogel) - Oil mist extraction (type: Elbaron)

Condition: used, Year of construction: 1980, machine/vehicle number: 19780, grinding length:600 mm Njdpfx Ajcxxrzjh Uelk grinding width:300 mm workpiece height:375 mm number of spindle speeds:1000 - 3000 UpM grinding wheel dimensions::300 x 50 x 76,2 mm grinding spindle drive:2,8 - 8,4 kW weight of the machine ca.:3,5 t CNC-controlled, 3D-controlled profile-dressing unit, Unicom ELB-CNC control with integrated 024 CNC Unicon electric hand wheel, display screen, analogue spindle load display, stepless adjustable cross feed, coolant device with magnetic-roller chip collector, full housing, separate electrical cabinet, additional grinding wheel with flange

Year of construction: 1979, condition: ready for operation (used), Max. grinding diameter: 300mm, Max. grinding length: 1950mm, Max. workpiece length: 2000mm Max Feed rate 1 – 30 m/min. Coolant supply 100 l/min Inf. variable speed range 2.000 – 6.000 RPM. Spindle 88 mm Centers height 150 mm Grinding wheels 100 – 250 mm Spindle power 3,5 kW Nljdpfx Aehq Uigeh Ujk Grinder Power 15 kW – 380 V – 50 Hz

Condition: used, Year of construction: 2002, grinding diameter 350 mm grinding length 1000 mm centre height 175 mm dimensions of the machine ca. 3,6/3,5 m Photos of identical machine with centre height 225mm Base: Kellenberger Kel-Varia UR175-1000 Kelco 120 Grinding head UR with T1-T2-T3 Basic equipment: -T1 500mm grinding disc diameter -T2 400mm grinding wheel diameter -Infinitely variable, high-resolution axis -Marposs measuring device for tool measurement -Active longitudinal positioning -GAP on T1 and T2 from ELASO contactless integrated in the control interface Semi-automatic balancing from ELASO integrated into the control interface -Tailstock with manual retraction -MK5 workpiece headstock with short taper DIN 55026 Belt-driven internal grinding device Options at an extra charge: - New high-precision workhead with torque drive - Internal grinding device for high-frequency spindles diameter 120mm -HF internal grinding spindle Fischer MFM-1224/42/31 D-21 -HF spindle with HSK holder 24,000 rpm with integrated GAP sensor. (delivery time) -CNC-controlled C-axis non-circular grinding -hydrostatic threaded spindle in x -new hydrostatic unit with only 1 pump and pressure accumulator thus better energy efficiency. -monitoring of the water content in the hydrostatic system -Suction system Further options available on request Mechanical overhaul: -Complete machine overhauled according to Kellenberger measurement protocol -New service-friendly cab -repainting Electrical overhaul: -New modern CNC CIRCULAR GRINDING MACHINE control with BEMA rough grinding surface -New control cabinet -New drive technology -Replacement of all electrical cables Berus pressure switches etc. -New absolute glass scales in x and z -New absolute rotary encoder (for B-axis) Control system: The grinding software consists of a basic licence and various options that are possible depending Nsdpouxfucsfx Ah Uslk depending on the equipment of the machine. Basic software - External and internal pendulum grinding - External and internal plunge-cut grinding - External and internal pendulum grinding - External and internal plunge-cut grinding - External and internal taper pendulum grinding - External and internal radius grinding, radius dressed on disc - Semi-automatic pendulum grinding - Workpiece zeroing - Grinding wheel zeroing - Measuring the dressing diamonds - 2 moulding diamonds - 1 shaped diamond or dressing roll (dressing roll required) - Moulding roller (dressing roller required) - 3 Flat dresser - Corrections - Z-position measurement (probe required) - GAP probing (grinding device required) OPTIONS at an extra charge: Software profile plunge-cut grinding: - External and internal profile plunge-cut grinding with profile disc Profile grinding software: - External and internal profile grinding with straight disc Software thread grinding: - Single and multi-start external and internal thread grinding with thread on the disc disc Dressing. Dressing of single and multi-groove discs. Flank angle freely selectable. Trapezoidal thread grinding software: - Additional dressing of trapezoidal threads possible External and internal non-circular plunge-cut grinding: - External and internal non-circular plunge-cut grinding Non-circular grinding software: A prerequisite for non-circular grinding is that the workpiece axis is equipped with a high-resolution rotary encoder so th...

Condition: used, Year of construction: 2008, Article: Vertical turning and grinding centre Manufacturer: EMAG Type: VSC 250 DS Nlsdpfx Aeia Rtdoh Ujk Yob: 2008 Control: SIEMENS 840D Grinding spindle speed: 30,000 rpm Rotation spindle speed: 3,000 rpm Tool places turret: 12 Cooler for spindle and machine bed cooling Cooling lubricant - lifting station (no independent cooling lubricant supply) Chip conveyor Parts handling Air through the spindle Two clamping circuits through the spindle (air and oil) Unfortunately, the grinding spindle is defective. However, this can be overhauled in a spindle factory. Otherwise the machine is in a very good condition and fully functional. Please, contact us for getting more information and pictures on mail(at) or *

Condition: refurbished (used), Machine totaly reconditioned With DRO Center height 175 mm Distance between centers 1000 mm Grinding wheel 400 x 50 x 127 mm + 225 x 20 x 76.2 mm Grinding wheel speeds 1'500-2'200 rpm Nlsdswhk Uuepfx Ah Uok With internal grinding attachement Misc. accessories MARCELS MASCHINEN AG

Condition: like new (used), Year of construction: 2010, Machine Type: CNC Cylindrical Grinding Machine Manufacturer: Fritz Studer AG Model: S22 Year of Manufacture: 2010 Control System: FANUC 31i-A CNC Machine Base: Granitan® S103 mineral casting Configuration: Fixed straight wheelhead for external (OD) grinding Automation: Automatic loading system with FANUC robot integration Distance Between Centers: 650 mm (25.6”) Center Height: 175 mm (6.9”) Max. Workpiece Weight: 150 kg (330 lbs) Max. Workpiece Length: 700 mm Nodpowl Uvkefx Ah Uelk Max. Workpiece Diameter: 449 mm Grinding Wheel Diameter: 610 mm Grinding Wheel Width: 160 mm Grinding Wheel Speed: Up to 3,200 rpm Spindle Power: 15 kW (20.5 hp) Wheelhead Type: Fixed straight X-Axis Travel: 310 mm Z-Axis Travel: 850 mm X-Axis Max. Speed: 15,000 mm/min Z-Axis Max. Speed: 30,000 mm/min C-Axis: Full rotation capability for workhead Programming Interface: StuderWIN with FANUC 31i-A Additional Software: StuderGRIND Automation Interfaces: Standard interfaces for loaders and peripherals Other Equipment: Rotary dresser, Heidenhain scales, various clamping fixtures

Condition: new, Center length ----- 1500 mm Center height ----- 280 mm Turning diameter ----- 560 mm Passage main spindle ----- 80 mm Bed width ----- 350 mm Spindle speed ----- 25-1600 rpm Motor ----- 7.5 KW INCLUDED * 3-axis digital readout brand SINO * Quick-change chisel holder type Multifix TOOC3 with 4 barrels * Electric brake * Foot brake * Self-centering 3-jaw chuck * Independent 4-jaw chuck * Clamping plate * Fixed and moving glasses * LED work light * Cooling system Nsdega Tvljpfx Ah Ujlk * Box with various tools

Condition: used, Year of construction: 2008, Control system OKUMA OSP-P200M. Cooling threw spindle. otating axe A Tsudakoma 250. Accessories: chip conveyor, probe RENISHAW OMP40 and tool probe. Table 1000 x 460 mm Rozsah pojezdů os: Nledpfx Ahswrnapj Uok Axe X 762 mm Axe Y 460 mm Axe Z 460 mm Spindle 50 - 8000 rpm DIN 40 Number of tools in tool changer 48 Machine dimensions 2805 x 2160 x 2746 mm Weight 7100 kg