Used Wheel Lathe for sale (23,567)

Condition: used, Technical details: turning diameter over bed: 320 mm Ncjdpfx Aqou Ixy Dsvjt turning length: 800 mm centre distance: 800 mm centre height: 150 mm spindle bore of work spindle: 30 mm range of revolution per miute: 35 - 1500 / 16 step U/min range of feed in x - axis: 0,04 - 2,4 / 30 step m/min tailstock quill adjustment:: 125 mm tailstock taper MT: MK2 dimension machine xH: 1,7 x 0,8 x 1,5 m Equipment and other features: -3-jaw chuck Röhm 160mm -chuck guard -protection system WxH: 510x400mm -Multifix tool clamp (4 pieces) -Tip in tailstock -Upper slide swivels +/- 45°, maximum travel = 100mm -Cross slide travel = 300mm feed Pump for coolant device (without feed) *

Condition: used, Year of construction: 1960, Technical details: turning diameter over bed: 630 mm turning diameter over support: 320 mm turning length: 2800 mm centre distance: 2800 mm turning dia. in gap: 700 mm length of gap: 450 mm spindle bore of work spindle: 70 mm weight of the machine ca.: 4,4 t dimension machine xH: 4,7 x 1,5 x 1,5 m Thread cutting possible Accessories: 4-jaw chuck various tips Gear wheels Jaws and small parts Nedpfx Aju Ix A Eoqvsct *

Condition: used, Year of construction: 2004, Technical details: turning diameter over bed: 850 mm turning dia. over face-slide: 580 mm turning length: 4000 mm Ncsdpfxeu Ix Izo Aqvot centre distance: 4000 mm faceplate diameter: 800 mm control: Siemens 810D revolution per minute: 1 - 1600 / 2 step U/min max. torque on the spindle: 6000 Nm feed motor: X= plan + Z= längs: 16000 / 20000 N rapid motion - x-axis: 4 m/min rapid motion - y-axis: 7 m/min spindle passage: 130 (Spindelkopf DIN 55027 Gr. 11) mm operating hours - idle run: werden noch ausgelesen h tailstock taper ISO: MK 6 tailstock quill stroke: 350 mm max. workpiece weight between centers: 5000 kg max. workpiece weight -without tailstock: 1800 kg interface: RS 232 / V24 voltage: 400 V / 50Hz V control voltage: 24 V Gleichstrom V total power requirement: ca. 52 kW Weight approx.: 14,0 t dimension machine xH: 2,6 x 9,1 x 2,5 m Cycle lathe with Siemens cycle control Motor: 37kW, rated speed 1500 rpm; max. speed 6500 rpm; torque 235 Nm Two gear shift stages Stage II: Spindle torque 258.9 to 1364.6 Nm Stage I: Spindle torque 1050.4 - 5536.1 Nm Feed drive Three-phase servo drive 2x chip conveyor Double E-cabinet Quick-change steel holder parat Coolant device incl. various accessories see photo, as well as steady rest and 3-jaw chuck Ø 500mm Rota-S plus *

Condition: used, Technical details: turning diameter over bed: 1040 mm turning diameter over support: 720 mm centre distance: 5400 mm center height over bed: 540 mm control: Siemens 828D CNC mit shop turn turning dia. in gap: 1300 mm length of gap: 640 mm spindle bore: 152 mm revolution per minute: 3,5...1000/ 4 steps U/min feed:: x-Achse: 37,24 (m/min) m/min feed:: z-Achse: 21,91 (m/min) m/min force of feed longitudinal: x-Achse: 6,44 (KN) N feed force Z - max.: 17,2 (KN) N tailstock taper MT: MK 6 tailstock quill stroke: 300 mm total power requirement: ca. 30 kW weight of the machine ca.: 14,1 t space requirement approx.:: L:7,7xB:1,7xH:2,0 m CNC Lathe with shop turn Geometric overhaul is in procedure. Equipment: - headstock Morse 6, travel of spindle sleeve 300mm - thread cutting possible (metric thread, inch threads, module threads) - multi quick steel holder swiveable 360° - 3-jaw lathe chuck Ø=630mm - chuck protection - 2 steady rests (Lynettes) (1x fixed + 1x fixed open) - 4 pcs tips for tailstocks - 5 x multi quick change steel holder for chisel - 1 x drill chuck 16mm + 2x drills with MK-cone sleeves 68,5mm & 24,75mm - 1 lot self constructed clamping means Accessories: - face chuck Ø=800mm (adaptation necessary) Nsdpfx Aou Ix Rpoqvjct - CNC turning with shop turn - your benefits at first glance: - flexible programing via graphic interactive (without DIN/ISO knowledge) or text programming with contour definition and cycle support - user friendly operation through practical set up -and measuring operations, clearly arranged tool managment and 3D-Simulation - increase of productivity via supporting PC-Software for work preparation without machine assignment *

Condition: used, Year of construction: 1999, Technical details: turning diameter over bed: 430 mm turning dia. over face-slide: 210 mm turning length: 510 mm facing movement (x-axis): 150 - 160 mm longitudinal traverse (z-axis): 300 - 510 mm control: Fanuc 21T revolution per minute: 6300 U/min max. torque on the spindle: 17,5 Nm external spindle dia. in forward position: 45 mm tool turret - number of stations: 8 Main spindle capacity: 11 kW electrics - voltage/frequency: 400/50 V/Hz total power requirement: 17 KVA Weight approx.: 2,4 t dimension machine xH: 2,2 x 1,4 x 2,0 m The EMCO TURN 345 is a compact and powerful CNC lathe designed for the precise machining of individual parts as well as small and medium-sized production runs. It is characterized by its robust construction, high reliability, and ease of operation. Ncedpoyw Hmfsfx Aqvet Equipped with the proven Fanuc Series 21-T control system, the machine ensures precise and stable process control as well as straightforward programming using standardized G-code. *

Condition: used, Year of construction: 1999, Technical details: turning diameter over bed: 180 mm turning dia. over face-slide: 75 mm turning length: 325 mm facing movement (x-axis): 56 mm Nodsy Emfwepfx Aqvoct longitudinal traverse (z-axis): 176 mm control: Fanuc 21T revolution per minute: 50 - 3000 U/min range of revolution per miute: 0 - 6300 U/min external spindle dia. in forward position: 50 mm feed force Z - max.: 3000 N spindle bore: 30 mm Main spindle capacity: max. 3,7 kW electrics - voltage/frequency: 400 / 50- 60 V/Hz Weight approx.: 1,0 t dimension machine xH: 2,2 x 1,0 x 1,62 m Machine built in 1999, first commissioned in 2000 The EMCO TURN 325 is a universal CNC/conventional lathe from the EMCO Group (Austria) range. It is in the medium power and size range and is often used in training, workshops, and production. It is specially designed for the precision machining of small parts, shafts, and chuck parts. *

Condition: used, Year of construction: 1970, Technical details: turning diameter over bed: 325 mm turning diameter over support: 150 mm turning length: 1000 mm turning length: plan: 165 / quer: 160 mm center height over bed: 200 mm length of gap: keine Kröpfung mm range of revolution per miute: 48 - 1.500 / 10 step U/min spindle bore of work spindle: 40 mm feeds:: längs: 0,021...2,34 / quer: 0,09...1,6 mm tailstock quill taper MT: 4 tailstock quill adjustment:: 125 mm total power requirement: 2,2 kW weight of the machine ca.: 1,0 t dimension machine xH: 2,1 x 0,7 x 1,2 m Threading possible: Metric, Withwort and modular thread Equipment: - 3-jaw chuck Ø 200mm with internal clamping jaws - Multifix quick-change steel holder - Foot brake - Cooling water pump (exclusive feed) * Ncsdpfx Aou Ixydeqvst

Condition: used, Year of construction: 1955, Technical details: turning diameter over bed: 420 mm turning diameter over support: 240 mm turning length: 1100 mm turning dia. in gap: 600 mm range of revolution per miute: 24 - 900 / 8 step U/min spindle bore: 41 mm range of feed in x - axis: 0,0120 - 0,1000 mm/U range of feed in y - axis: 0,0062 - 0,0302 mm/U tailstock quill taper MT: 3 tailstock quill adjustment: 220 mm total power requirement: ca. 4,0 (ohne Gewähr) kW weight of the machine ca.: 1,2 t Ncedju Ix D Aopfx Aqvst dimension machine xH: 2,3 x 0,9 x 1,3 m Equipment: 3-jaw chuck Ø 200mm Tool holder 4-way, swivelling 30° right/left T-slot for copying device Driving disc *

Condition: used, Year of construction: 1951, Technical details: turning diameter over bed: 400 mm turning diameter over support: 240 mm turning length: 1100 mm centre height: im Bett gemessen: 190 mm spindle passage: 40 mm range of revolution per miute: 37,5 - 950 U/min total power requirement: 3,5 kW tailstock quill taper MT: MK 4 tailstock quill: 180 mm weight of the machine ca.: 1,6 t dimension machine xH: 2,6 x 1,4 x 1,3 m The lathe is equipped with threading device. It is rewired and a new control cabinet is made. Emergency stop switch and chuck protection 3-jaw chuck Ø 250mm rotating tip Njdju Ix Hdepfx Aqvect Tool support quadruple steel holder tool support approx. 30° right/left swiveling 4 Stück Wechselräder Copying device (taper 15° right/left) *

Condition: used, Year of construction: 1986, Technical details: turning diameter over bed: 315 mm turning diameter over support: 200 mm turning length: 500 mm turning diameter over bed: 315 mm Njdpfou Ix Hqox Aqvsct swing diameter over face slide: 200 mm center height measured in bed: 180 mm spindle passage: Ø 32 mm range of revolution per miute: 56...2.800 / nur only 6 step links-rechts U/min range of feed in x - axis: längs: 0,02..0,8 m/min range of feed in y - axis: plan: 0,01..0,4 m/min tailstock quill taper MT: MK 4 tailstock quill adjustment:: 140 mm total power requirement: 5,5 kW weight of the machine ca.: 2,0 t dimension machine xH: 2,1x 1,1 x 1,4 m -Workpiece pick-up via collet chuck -travels longitudinal slide= 580mm and cross slide=170mm -incl. tooling device lathe support -incl. change gears -steady rest Ø 100mm -fourfold tool holder The machines functionality is limited ! 6 speeds are currently selectable! (224/1800 ; 280/2240; 355/2800 rpm.) i.D. *

Condition: used, Year of construction: 2004, Technical details: turning diameter over bed: 610 mm turning dia. over face-slide: 350 mm swing diameter over bed: 610 mm centre distance: 1390 mm control: Fanuc 0i-Mate TC x-axis: plan: ca. 305 mm z-axis: längs: ca. 1350 mm revolution per minute: 22 - 2200 U/min feed:: X + Z-Achse: 5 / 10 m/min. spindle bore: Ø 70 mm tool turret - number of stations: 6 tailstock quill taper MT: MK5 tailstock quill stroke: 150 mm Weight approx.: 2,7 t total power requirement: 15 kW Njdju Ix I Uspfx Aqvoct dimension machine xH: 3,7 x 1,7 x 1,7 m dimensions of hydaulic: 630 x 460 x 900 mm other features: -hydr. chuck TONFAU Ø 300mm -hydraulics -Coolant system -control panel -double foot switch accessories: -div. mold jaws -div. soft jaws -6 footrests *

Condition: used, Year of construction: 1979, Technical details: turning diameter over bed: 540 mm Ncedpfxjvbhv Rj Aqvot turning length: 630 mm centre distance: 900 mm center height over bed: 270 mm center height: über Hinterschlitten: 138 mm Turning diameter: über Hinterschlitten: 250 mm longitudinal feed: 700 mm facing movement : 80 / 75 mm revolution per minute: 1,8 - 450 bei 8x steples U/min clamping diameter: 26 mm range of feed in x - axis: 12 step / 0,063 - 0,63 mm/U range of feed in y - axis: 36 step / 0,070 - 1,11 mm/U tailstock quill: MK5 mm tailstock quill stroke: 250 mm Total power requirement: 7,0 kW machine weight approx.: 3,76 t dimension machine xH: 3,2 x 1,2 x 1,8 m Application: Mainly for relief turning and relief grinding of cutting tools (especially hobs with and without thread pitch). Back turning and relief grinding is possible from the front, the rear and in the axial direction of the machine. Main drive via 8-stage manual gearbox. Feed gearbox is designed as a 12-stage manual gearbox. Swivel range of the rear slide = 360deg. Swivel range of cross slide = 360deg. Lathe chuck is cone disc Ø 200mm with MK5 Equipment: turning mandrel Ø 49,5 x 400mm Measuring system ARBAH-L 3+1 Inverter FRENIC 5000G11 i.D. *

Condition: used, Year of construction: 2014, Technical details: turning diameter over bed: 356 mm turning diameter over support: 220 mm turning length: 1000 mm centre height: 180 mm centre distance: 1000 mm spindle bore of work spindle: 38 mm Nedsw D Dcqjpfx Aqvect range of revolution per miute: 45 -1800 U/min longitudinal feeds:: 0,043 -0,653 steps 42 tailstock quill taper MT: MK3 tailstock quill adjustment:: 95 mm total power requirement: 4 kW weight of the machine ca.: 0,85 t dimension machine xH: 1,92 x 0,8 x 1,49 inkl. Anzeigeneinheit m

Condition: used, Year of construction: 1990, Technical details: spindle passage: 23 mm z-axis: 150 mm turning length: 150 mm stroke: x+z Achse / Axis/eje/eixo/os = 30 mm facing movement (x-axis): 30 mm longitudinal traverse (z-axis): 30 mm control: Num 760T spindle turning speed - continuous: U/min feed speed: x/y: 5 mm/min feed speed: z: 10 mm/min Nsdpsu Iwyvefx Aqvect tool turret: 2 Stück/pcs mit je/each 6 tools operating pressure: max. 45 bar total power requirement: 8,0 kW weight of the machine ca.: 2,2 t dimension machine xH: 2,45x1,3x2,2 m dimensions of the bar loader L-W-H: 4,65x0,5x1,3 m techn. details: - bar clamping hydraulic -automatic workpiece discharge (via catch basket) - 2 turrets with each 6 tool tapers - coolant device - control NUM 760 (size: L:1,0xW0,8mxH:1,56m) Zubehör: - bar loader magazine make IEMCA type CS 112/31 accessories: -24 div. tool tapers - device tool Sylvac system ( size:L:0,58xW:0,5xH:0,43m) *

Condition: used, Year of construction: 1987, Technical details: turning diameter over bed: 180 mm turning length: 490 mm swing diameter: 450 mm cross travel: Z-Weg: 168 mm control: Traub TX8D revolution per minute: 20 - 4000 U/min spindle passage: Ø 60 mm operating hours - idle run: 23.495 h tool turret: 12 tools total power requirement: 38 kW Weight approx.: 4,2 t dimension machine xH: 3,6 x 2,5 x 2,2 m Tool holder straight shank DIN 69880 (VDI 3425) Ø 40x63 Röhm lathe chuck Ø 200mm hydraulic clamping Operation via double foot switch and control panel/operating panel. Coolant device The Traub carries an integrated chip conveyor with an ejection height of 1,100mm (currently without function). Accessories: multiple small parts 8 x machine feet without tailstock i.D. Nodpfsu Ix N Sex Aqvjct *

Condition: used, Technical details: faceplate diameter: 1500 mm center height: über Fundament: 1250 mm revolution per minute: 2,1 ... 96 / 12 step U/min feed min/max: 0,3 ... 2,5 / 18 step mm/min. spindle bore: Ø 82 mm tailstock adjustment - manual: quer: 55 mm tailstock quill stroke: 400 mm tailstock taper MT: 6 weight of the machine ca.: 15 t dimensions L x W x H: Spindelkasten: ca. 2,0 x 1,6 x 2,1 m dimensions L x W x H: Support: ca. 6,0 x 2,1 x 1,6 m Nedpfx Aou Ix Sgoqvjct Stand support with bed slide: -bed slide travel 4,300mm motorized -cross slide 1500mm -Cross slide 600mm -Top slide 250mm -Tool holder with clamping claw Bed guide dimensions LxW: 6000 x 1500mm 4 base plates each 6000x2050x200mm *

Condition: used, Year of construction: 2011, Technical details: turning length: 310 mm swing diameter over bed: 500 mm swing diameter over bed slide: 290 mm centre distance: 500 mm x-axis: 190 mm z-axis: z1: 335 / z3: 370 mm y-axis: 80 mm revolution per minute: 6000 U/min Control: Heidenhain CNC Pilot 4290 spindle bore: 73 mm bar material dia.: 50 mm tool turret - number of stations: 12 tool taper: VDI 30 mm rapid traverse x + z axis: 30 m/min operating hours - idle run: 36443 h spindle hours: 8545 h interface: ja total power requirement: 20 kVA kW dimension swarf conveyor LxWxH: 3,2 x 0,45 x 1,5 CNC inclined bed lathe With a 3-jaw chuck Ø 160mm with matching flange (max. speed 4500 rpm) and 2 additional sets of spare jaws. Turret head for 12 tools all with tool drive; Sauter disk turret (C-axis = 300 rpm) Torque main spindle: 95 Nm at 100% and 127 Nm at 40% Chip conveyor 450 K-1/250; year of manufacture 2000 Electric cabinet with Rittal cooling Nodpfjw S Efzex Aqvect The machine does not have a hydraulic chuck. A manual chuck has been installed by the previous owner. The machine is not functional and is for sale. The machine has an unknown malfunction in the turret, meaning that reference travel and axis movements are not possible. Machining functionality is therefore currently not possible. The machine is for sale and in need of repair! i.D. *

Condition: used, Year of construction: 2008, Technical details: turning diameter over bed: 600 mm turning dia. over face-slide: 540 mm turning length: 550 mm longitudinal traverse (z-axis): 800 mm facing movement (x-axis): 260 mm control: Fanuc 18i-TB spindle bore: Ø 73 mm bar material dia.: Ø 65 mm revolution per minute: 0 ... 5000 steples U/min max. torque on the spindle: max. 250 Nm rapid traverse in x-y-z axis: X/Z: 30 m/min. / Y: 12 m/min. rapid traverse c-axis: 1000 U/min. tool turret - number of stations: 12 (Sauter) operating pressure: 6,0 bar electrics - voltage/frequency: 3 x 400 / 50-60 V/Hz operating pressure: 6 bar total power requirement: 40 kVA Weight approx.: 5,7 t dimension machine xH: 2,2 x 3,4 x 2,4 m dimension swarf conveyor LxWxH: ca. 2,9 x 0,6 x 0,55 (0,38 to) m dimensions LxWxH: Spänewanne: ca. 1,6 x 1,3 x 0,25 (0,2 to) m transport measurements machine: ca. 3,3 x 1,9 x 2,2 m The machine has a C-axis, E-axis, Y-axis, and W-axis. Nsdpovvtpxsfx Aqvect Powered tools can be used in all positions. Distance between spindle and counter spindle = 1050 mm. Counter spindle: A2-6, travel distance 800 mm, spindle diameter 105 mm, torque 250 Nm. Control cabinet equipped with Rittal cooler With hinged chip conveyor Chip tray Compressed air gun The machine has NO lathe chucks on sale as is! *

Condition: used, Year of construction: 1998, Technical details: height of profile: 180 mm max. dia. of grinding wheel: 200 / Topfscheibe mm grinding wheel hole diameter: k.A. grinding spindle speed: 2800 U/min Table dimensions: LxB: 500 x 160mm mm voltage: 220 / 380 V total power requirement: 3,0 kW Ncjdpfx Aeu Ngrqeqvst weight of the machine ca.: 0,57 t dimension machine xH: 1,28 x 1,0 x 1,75 m Application for face grinding Magnet mount: LxW = 680 x 200mm; tilt approx. 15°; swivel 360° via radial scale magnet: Type S2D; permanent magnet, clamping surface 300 x 150mm. Grinding wheel support: -adjustment vertical = length 180mm manual; swivel = approx. 45° right/left manual. Operation via control panel on machine. Coolant tank with pump and feed *

Condition: used, Year of construction: 1970, Technical details: turning diameter over bed: 500 mm turning diameter over support: 300 mm turning length: 1000 mm center height measured in bed: 250 mm centre distance: 1000 mm revolution per minute: 18...1800 / 21 step U/min spindle bore of work spindle: 56 mm tailstock quill adjustment:: 180 mm longitudinal feeds:: 0,08 - 3,26 mm/U cross feed: 0,04 - 1,63 mm/U Rapid feed X axis: 4,2 m/min. Ncedevvrpkjpfx Aqvst total power requirement: 7,5 kW weight of the machine ca.: 2,9 t dimension machine xH: 2,6 x 1,1 x 1,3 m 4-jaw chuckØ 250mm with internal jaws live center in tailstock 4-fold quick-clamping tool holder coolant system Accessories: various reduction sleeves MK3-MK5-MK4 revolving tip "Clamping heart" 3-jaw chuck Ø 250mm with inner jaws The machine does not comply with APR (accident preventing regulations) *

Condition: used, Technical details: turning diameter over bed: 350 mm turning diameter over support: 200 mm turning length: 560 mm centre height: 170 mm spindle bore: Ø 32 mm range of revolution per miute: 36...1.800 / 8 step U/min range of feed in x - axis: längs: 0,02..0,8 m/min range of feed in y - axis: plan: 0,01..0,4 m/min Ncodevadd Iepfx Aqvot tailstock quill taper MT: MK 4 tailstock quill adjustment:: 140 mm total power requirement: 5,5 kW weight of the machine ca.: 2,0 t dimension machine xH: 2,1x 1,1 x 1,4 m -Working stroke longitudinal support=580mm; plan support=170mm; top support 130mm; -Workpiece support via 3-jaw chuck Niles Ø 160mm, speed 2,800 rpm. -Tool holder quick change steel holder Multifix. Equipment: Cooling water pump 4 pieces machine feet Copying device *

Condition: used, Year of construction: 1963, Technical details: turning diameter over bed: 1000 mm turning diameter over support: 620 mm turning length: 3150 mm centre distance: 3150 mm turning diameter in the gap: 1200 mm length of gap: 800 mm weight of the machine ca.: 11,5 t dimension machine xH: 7,5 x 1,5 x 1,7 m incl. 2x steady rests and various tips Ncjdju Ix Aropfx Aqvot *

Condition: used, Year of construction: 1974, Technical details: turning diameter over bed: 500 mm turning diameter over support: 300 mm turning length: 2100 mm centre distance: 2000 mm spindle passage: Bohrung ca. Ø 60 mm range of revolution per miute: 35,5 - 1800 / 18 step U/min Ncodeu Ix Dcspfx Aqvjt rapid motion - x-axis: Support 4,2 m/min tailstock quill taper MT: MK 5 tailstock quill adjustment: 180 mm control voltage: 220 V weight of the machine ca.: 3,25 t dimension machine xH: 3,5 x 1,2 x 1,6 m Thread cutting possible, e.g. metric thread, module thread and inch threadEilgang Quersupport Futterschutz 2x Späneauffangwanne Zubehör: (siehe vergleichbar auf Foto) 2x Lünette (1x geschlossen und 1x offen) Planscheibe 3-Backenfutter Backenpaare Flansch Spitzen div. Zahnräder *

Condition: used, Year of construction: 1975, Technical details: turning diameter over bed: 400 mm turning diameter over support: 220 mm turning length: 1100 mm centre height: 180 mm spindle passage: Ø 45 mm range of revolution per miute: 31,5 - 1.400 / 12 step U/min range of feed in x - axis: längs: 0,08 - 1,10 m/min range of feed in y - axis: quer: 0,028 - 0,40 m/min tailstock quill taper MT: MK4 tailstock quill adjustment: 200 mm total power requirement: 4,0 kW weight of the machine ca.: 1,7 t dimension machine xH: 2,5 x 1,1 x 1,4 m Equipment: -Three-jaw chuck Ø 250mm manufacturer Forkardt with interchangeable jaws -Multifix steel holder -Cooling water device with pump -chuck guard Ncjdpou Ix E Hefx Aqvst -chip collecting tray -chip guard Accessories: -chuck spanner -tool holder -2 pieces gears *

Condition: used, Year of construction: 1999, Technical details: turning diameter over bed: 180 mm turning dia. over face-slide: 75 mm turning length: 325 mm facing movement (x-axis): 56 mm longitudinal traverse (z-axis): 176 mm control: FANUC 21T revolution per minute: 50 - 3000 U/min external spindle dia. in forward position: 50 mm feed force Z - max.: 3000 N Ncsdsy Emfqopfx Aqvot spindle bore: 30 mm Main spindle capacity: max. 3,7 KW kW electrics - voltage/frequency: 400 / 50 -60 V/Hz Weight approx.: 1,0 t dimension machine xH: 2,2 x 1,0 x1,62 m The EMCO TURN 325 is a universal CNC/conventional lathe from the EMCO Group (Austria) range. It is in the medium power and size range and is often used in training, workshops, and production. It is specially designed for the precision machining of small parts, shafts, and chuck parts *