Used Tacchella Internal And External Grinding Machine for sale (75,469)

Condition: good (used), Year of construction: 2006, functionality: fully functional, center height: 180 mm, grinding length: 1,000 mm, grinding wheel diameter: 508 mm, grinding diameter: 350 mm, workpiece length between centers: 1,000 mm, grinding wheel width: 100 mm, !!!ATTENTION ON-SITE SALE IN 74219 MÖCKMÜHL!!! External cylindrical grinding machine TACCELLA ELEKTRA 1018 MPC Internal and external grinding machine Year of manufacture: 2006 Control: Fanuc 21i Grinding diameter: max. 350 mm Grinding length: max. 1,000 mm Equipment: - 2 separate grinding spindles for internal and external grinding - Grinding spindle head manually swivellable - Internal grinding installed - Tailstock - Automatic balancing system - Probing system for workpiece length and diameter Hodpfjy N Tapjx Ag Isnl - Structure-borne noise sensor - Coolant system - Oil mist extraction Many grinding wheels and accessories included

Condition: refurbished (used), Year of construction: 2025, Studer S30 Center height: 125 mm center width: 650 mm Workpiece weight: 80 kg Other freely selectable options: - Completely new control cabinet with SPS-Basic and panel - Conversion to ball screw incl. SPS-Pro (cycle controlled) - "Workpiece memory"-SPS-PRO for 10/15/30/50 workpieces - Glass scale in X- and Z-axis - Swiveling internal grinding device - Motor spindle for internal grinding device - Frequency converter external grinding spindle - Frequency converter for internal grinding spindle - Grinding sensor system - Contact protection on external grinding spindle Hjdpod Hdxwofx Ag Ienl - Safety door - manually operated - Grinding wheel flange - LED spot with flex arm - suitable coolant system

Condition: ready for operation (used), Year of construction: 1983, functionality: fully functional, machine/vehicle number: 8151, rotary table diameter: 800 mm, grinding height: 750 mm, workpiece weight (max.): 800 kg, total height: 4,100 mm, total width: 26,650 mm, total length: 44,000 mm, feed length Y-axis: 750 mm, feed length Z-axis: 550 mm, overall weight: 13,000 kg, grinding wheel diameter: 400 mm, disc diameter: 400 mm, grinding spindle speed: 1,460 rpm, grinding diameter: 800 mm, control cabinet width: 650 mm, type of input current: DC, control cabinet height: 1,900 mm, control cabinet length: 1,800 mm, spindle speed (max.): 1,800 rpm, spindle speed (min.): 1,460 rpm, table load: 900 kg, workpiece diameter (max.): 850 mm, grinding wheel width: 60 mm, table width: 1,240 mm, power: 35 kW (47.59 HP), rapid traverse X-axis: 2 m/min, rapid traverse Y-axis: 100 m/min, rapid traverse Z-axis: 2 m/min, space requirement height: 4,100 mm, space requirement length: 5,100 mm, space requirement width: 2,655 mm, Good day, For sale is a well-preserved and completely functional Sielemann cylindrical grinding machine for the following applications: surface grinding, internal grinding and external grinding. The machine has a swivel stand with 3 different sanding heads for the respective area of application. Complete machine documentation is available and can be presented upon inspection. The Sielemann offered here has always been serviced and maintained, most recently the components listed below were replaced: - 3x New weight compensation cylinders - 1x new hydraulic unit (complete) - New guideway covers - Revised rotary table group Technical data Machine length: 4.400mm Machine width: 2,655mm Machine height: 4.100mm Machine weight: 13.000Kg Control cabinet width: 650mm Control cabinet height: 1.900mm Control cabinet length: 1.800mm Grinding table diameter: 800mm Grinding table load capacity: 800kg Grinding table drive power: 0.21 - 14.5KW Grinding table speed: 100 1/min (both directions) Grinding table workpiece clamping: Magnetic clamping plate incl. T-slots Z-axis travel (grinding table): 550mm Maximum grinding height (Y): 750mm Lubrication pump Masch. Bed: 0,18KW Lubrication pump Masch. Column: 0,1KW Leak oil pump: 0,065KW Hydraulic pump: 1.5KW 1) External round grinding head Spindle drive power: 11KW Spindle speed: 1,450 1/min Grinding wheel: 400x50mm Cone grinding spindle mount: D=65mm Taper pitch: 1:5 Feed speed (Y): 100 mm/min 2) Internal round grinding head Spindle drive power: 5.5KW Grinding wheel: Variable Feed speed (Y): 100 mm/min 3) Flat-round sanding head Spindle drive power: 11KW Spindle speed: 1,800 1/min Grinding wheel: 400x50mm Cone grinding spindle mount: D=65mm Taper pitch: 1:5 Feed speed (Y): 100 mm/min Viewing appointments possible at short notice by arrangement !!! With kind regards R.Suckow / Managing Director UNITTOOL Werkzeugmaschinen GmbH 33758 Schloß Holte Stukenbrock Görlitzerstraße 9 Hjdpfx Asrntireg Ienl

Condition: used, Grinding wheel diameter 300 mm, max. grinding length approx. 600 mm, with coolant system and KNOLL fleece filter unit Hnjdey Sqkkjpfx Ag Iel

Condition: excellent (used), A well-maintained internal cylindrical grinding machine by JUNG, type 141, equipped with a surface grinding attachment and coolant tank. Hsdsy Svz Uspfx Ag Ionl

Year of construction: 1998, condition: ready for operation (used), An internal cylindrical grinding machine Jung C8, which was modernized by Retza, is available. Grinding diameter range: 6mm-50mm, max. grinding depth: 80mm, speed: 1000rpm, machine dimensions X/Y/Z: approx. 2100mm/1400mm/1400mm, weight: approx. 2000kg. Without grinding spindle and without inverter for it. An on-site inspection is possible. Hnodpjy R Drrsfx Ag Ijl

Condition: good (used), Year of construction: 2002, functionality: fully functional, grinding diameter 20-35mm X-travel 450mm, Z-travel 200mm exhaustion device, extinguishing system Hnsdpfx Agey Ix Ezj Iol weight ca. 4000kg

Condition: good (used), Year of construction: 1986, Inner diameter: 20…400 mm Grinding depth: 315 mm Internal grinding spindle speeds, stepless: 2,640…16,500 rpm Workpiece spindle speed: 40…400 rpm Table feed rate: 0.1…8 m/min Rapid traverse: 10 m/min Table travel: 630 mm Hsdpjy Rlxtjfx Ag Ijnl Total power requirement: 16 kW Machine weight approx.: 5.8 t Additional information: Grindable diameter within workpiece guard: internal 20…400 mm; external 500 mm Max. workpiece diameter in workpiece guard: 500 mm Max. grinding depth: 315 mm Grindable taper angle: 60° Internal grinding spindle speeds: 2,640…16,500 rpm Drive power for face grinding attachment: 4 kW Drive power for workpiece motor: 1.5 kW Workpiece spindle speeds: 40…400 rpm Table speed: 0.1…8 m/min Rapid traverse: 10 m/min Table travel: 630 mm Max. distance from workpiece spindle flange to grinding spindle carrier: 1,250 mm

Condition: excellent (used), Year of construction: 1974, functionality: fully functional, Manufacturer: WMW GLAUCHAU Type: SIP 400x500 Year of manufacture: 1974 Total power requirement: 12 kW Control: conventional Machine weight: 5,900 kg Dimensions (L x W x H): 4000 x 1780 x 2400 mm Swing diameter: yes Internal diameter: 800 mm Grinding depth: up to approx. 500 mm Table stroke: 800 mm Distance from workpiece spindle head Grinding diameter in workpiece guard Adjustment of internal grinding attachment Delivery time: short notice Price: on request Type of machine: Internal and face grinding machine Hnedpfx Asy Rh D Sog Iel 1 unit internal cylindrical grinding machine with face grinding attachment SIP 400 x 500 Special version with enlarged swing diameter and extended hydraulic cross slide Reconstructed and modernized at the Glauchau manufacturer plant 1. TECHNICAL DATA 1.1 Working Range Internal grinding, min./max.: 30/630 (800) mm External grinding, max.: 800 mm Workpiece diameter, max.: 800 mm In workpiece guard, max.: 800 mm Without workpiece guard, approx.: 850 mm Up to grinding spindle carrier, max.: 1225 mm On the table, max.: 545 mm 1.2 Workpiece Spindle Headstock Max. cross traverse: 650 mm Cross adjustment via geared motor and positioning device Swivel range, max.: 15° Workpiece spindle speeds (rpm): 16/22/32/45/63/90/125/180/250 Load capacity, max.: 1000 kg Spindle head (with bayonet flange) DIN 55021 size 11

Condition: good (used), Year of construction: 1995, functionality: fully functional, Technical details internal diameter 800 mm grinding depth 500 mm swing diameter 850 mm weight of the machine ca. 6,4 t Additional information Used internal cylindrical grinding machine with face grinding device in special design with enlarged swing diameter and extended, hydraulic transverse movement Reconstructed and modernized 1995 in the Glauchau manufacturer’s plant, put into operation 1996 1. TECHNICAL DATA 1.1 Working area Grinding diameter in the workpiece guard internal grinding, min./max. mm 30/630(800) External grinding, max. mm 800 Grinding depth, up to approx. mm 500 Table stroke mm 800 Workpiece diameter, max. mm 800 Swing diameter in workpiece protection, max. mm 800 Without workpiece protection, approx. mm 850 Distance from workpiece spindle head to grinding spindle carrier, max. mm 1225 Adjustment of the internal grinding device on the table, max. mm 545 1.2 Workpiece headstock Cross shift, max. mm 650 Cross adjustment via gear motor and positioning device with HEIDENHAIN digital position display Swivel, max. degrees 15 Workpiece spindle Speeds rpm 16/22/32/ 45/63/90/ 125/18/250 Load capacity, max 1000 Spindle head (with bayonet flange) DIN 55021 size 11 Hsdpfx Aey Idlaeg Ionl Machine accessories: 2-axis digital displays made by HEIDENHAIN Coolant system with magnetic separator Fixators (machine shoes) Various grinding wheels Diamond dresser Large face plate Internal and face grinding device Halogen machine lamp Machine documentation

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 --> 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 Hedpfx Agjw Intas Ienl --> 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, External/Internal Cylindrical Grinding JONES-SHIPMAN type 1310 Hsdjy Nzhzspfx Ag Ionl Capacity: Ø 200 x 450 mm (8'' x 18'') Tilted table Grinding wheel: Ø 300 mm x thickness 25 mm x bore Ø 125 mm Drive wheel speed: 1750 and 2300 RPM Rotary grindstone holder support Supplied without internal grinding spindle Equipped with 1 lubricant tank Voltage : 380 V Length: 1800 mm Depth: 1600 mm Total height: 1900 mm Weight: approx 2 T

Condition: used, Year of construction: 1997, Technical details: max. module: 7 weight of the machine ca.: 5 t worm grinding diameter: 280-350 mm width of grinding worm: 84-104 mm min. number of teeth: 6 max. number of teeth: 600 max. top circle diameter: 360 mm max. workpiece weight: 60 kg Hjdpjx Aq Egsfx Ag Ionl without filter *

Condition: used, Year of construction: 1986, External/Internal Cylindrical Grinding Machine JONES & SHIPMAN type 1307 3-jaws chuck Ø 200 mm Capacity: Ø 356 x 1016 mm (14'' x 40'') Year of construction: 1986 Rotating head Tilted table: 0 +16° / 0 -12° Grinding wheel dimensions: Ø 350 mm x thickness 30 mm Auto Feeds X / Z Speed variator on the parts carrier rotation (See other technical details on photo) Equipped with: 1 internal grinding spindle - 1 lubricant tank - 1 hydraulic group Voltage: 380 V Length with table ends: 3500 mm / without table ends: 2600 mm Depth: 1700 mm Total height: 2000 mm Weight: approx 3 T Hodpoy Ndkfsfx Ag Ienl

Condition: excellent (used), internal diameter 5-200 mm grinding depth 230 mm swing diameter 50 mm centre height 180 mm internal grinding diameter 5 - 200 mm spindle bore 50 mm spindle speeds 120 - 1000 mm inclination 90 ° table movement in milling step automatic 3 - 600 mm/min spindle turning speed range 3600 - 40000 U/min Hjdpfoy D T U Aox Ag Ijnl spindle diameter 90 mm total power requirement 10 kW weight of the machine ca. 2,6 t dimensions of the machine ca. 3,1 x 1,6 x 1,8 m

Year of construction: 2005, condition: ready for operation (used), - USED - CNC EXTERNAL GRINDING MACHINE CENTRE HEIGHT: 171 mm DISTANCE BETWEEN CENTRES: 430 mm MAX GRINDING LENGTH: 400 mm MAX ADMITTED LOAD: 150 Kg X-AXIS TRAVEL: 170 mm Z-AXIS TRAVEL: 600 mm RAPID FEEDS: 12 m/min SPINDLE: 830 rpm; 24 Nm GRINDING WHEEL SIZE: 508 x 80 x 203,2 mm MOTOR POWER: 7,5 kW CONTROL UNIT: FAGOR 8055 TCO WEIGHT: 4500 Kg ACCESSORIES: FUME EXHAUSTER ; PAPER FILTER ; MAGNETIC FILTER ; Hnodjyvlxdopfx Ag Iol GRINDING WHEEL BALANCER NOTE: 0-9° SWIVELLING TABLE; SWIVELLING CHUCK; INVERTER FOR KEEPING THE PERIPHERAL EXTERNAL GRINDING WHEEL SPEED STEADY; PIECE LOCKING DEVICE WITH PNEUMATIC SYSTEM; HYDRAULIC OPENING TAILSTOCK AND DEVICE FOR SEARCHING THE CYLINDRICITY

Condition: good (used), internal diameter 200 mm grinding depth 80 mm stroke of the table X= 300 mm stroke of the table Y= 500 mm control FANUC 18i-TA total power requirement 7 kW weight of the machine ca. 2,5 t dimensions of the machine ca. 2,950x2,330x1,640 m Hodpfey Dvnrex Ag Ijnl O K A M O T O High-Precision Internal Cylindrical Grinding Machine with FANUC CNC Control, System 21 i – TA, 2-Axis Simultaneous Machining For machining bores, end faces, and outer diameters in a single setup TECHNICAL DATA Internal grinding diameter: (6) - 100 mm Grinding depth approx.: 80 mm Max. table stroke: X-axis 300 mm Z-axis 500 mm Swing diameter over table: 600 mm Swing diameter in chuck cover: 260 mm Table speed: (X/Z-axis) 0.1 - 10,000 mm/min Swivel angle of workpiece spindle: -5 to +15 degrees Smallest input increment: X-axis 0.0001 mm Z-axis 0.0001 mm Workpiece spindle speed: 100 - 850 rpm Grinding spindle speeds: Standard (infinitely variable) up to 10,000 rpm and 20,000 rpm

Condition: used, Year of construction: 2004, Lot consists of: (1) CNC Horizontal Double-Disc Surface Grinder Technical Details: grinding wheel diameter x width 762 x 220mm, MARPOSS E3 in-process measuring system, CNC FANUC 210i-MB, 400V 50Hz 97kW, weight approx. 13 tons Hodpfx Asym Tuasg Ienl

Condition: used, Year of construction: 2009, grinding diameter - internal max. 600 mm grinding diameter - cylindrical max. 800 mm control Siemens Sinumerik 840 D internal grinding depth max. 800 mm External grinding length max. 600 mm turning speed range - stepless 1-795 U/min workpiece length max. 800 mm Workpiece spindle unit (U/B1/L adjustment): - Travel (U axis): 300 mm - Swivel angle (B1 axis): -0.5°/+12° - Drive power of the workpiece spindle: 8.5 kW - Speed range (infinitely variable): 1-795 rpm - Setup speed (tapping): 10 rpm - Spindle head size A 8 according to DIN 55026 - Through bore 58.5 mm - Workpiece diameter max. 830 mm - Workpiece length (clamped in flight) max. 800 mm - Workpiece length (clamped between centers) max. 800 mm Hnjdpfx Agowp S Tno Iol - Load capacity at spindle head max. 6100 N Internal grinding device (Z1/X1/B2): - Travel (Z1 axis): 1100 mm - Travel (X1 axis): 150 mm - Swivel angle (B2 axis): 270° - Manual longitudinal adjustment of internal grinding axis on table: 780 mm - Drive power of internal grinding spindles (infinitely variable) Belt-driven grinding spindles: 7.5 kW - Mounting bore grinding block (diameter): 100 mm / 125 mm - Mounting length grinding block: 220 mm - Grinding diameter: max. 600 mm - Grinding depth: max. 800 mm External and surface grinding device (Z2/X2): - Travel (Z2 axis): 800 mm - Travel (X2 axis): 470 mm - Swivel angle (B2 axis): 270° - Drive power of external grinding spindles: 7.5 kW - Mounting bore of grinding block: Ø 140 mm - Grinding diameter: max. 800 mm - Grinding length max. 600 mm - Grinding wheel dimensions: max. Ø 450 x 50 x Ø 127 mm Equipment/accessories: - Various grinding spindles - Various flanges/grinding wheel holders - Various clamping jaws - Coolant system - Oil mist filter - Cooler - Technical documentation

Year of construction: 1972, condition: ready for operation (used), A Voumard internal cylindrical grinding machine completely overhauled in 2020 is available. Grinding diameter range: 5mm-200mm, grinding depth: 250mm, speed: 1000rpm, speed control: continuously variable. An on-site inspection is possible. Hodsy E S Hmspfx Ag Ijnl

Condition: used, Year of construction: 1973, min./max. hole to grind 8 / 10 mm max. grinding depth by internal grinding 150 mm swing dia. 450 mm workpiece spindle bore 35 mm max. swivability 30 ° min/max. table longitudinal travel 5 / 150 mm/min Internal Grinding Machine | D14 - 1973 Hnedpst Rlgusfx Ag Iol The machine is in a well-maintained condition. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: D-14 | D 14

Condition: used, internal diameter 340/440 mm grinding depth 99999 mm grinding diameter 250,350,450 mm grinding length 600 mm centre height 125,175,225 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 0,001-0,030 mm/Ø 0-0,95 mm/Ø ±10 ° longitudinal feed of the table 900 mm table speeds 0,02-6 m/min 130 kg 130 inkl. Spannugkg kg 70 mm total power requirement 6,5 kW weight of the machine ca. 2,2 t dimensions of the machine ca. 3,1 x 2,0 m As the world’s leading company in Kellenberger overhaul and retrofit we are not only able to deliver machines in a quality similar to a new machine and with Hedpfed Ih Dxsx Ag Ionl warranty, but we can also offer you the service for your metrical overhauled and repainted with: -Neuem CE konformem Schaltschrank. -Neuem Werkstückspindelmotor und Regler in Drehstromtechnik. -Digitalanzeige in 2 Achsen. Auflösung x-Achse 0,5my Optionen: -Drehgeber mit digitaler Anzeige im Werkstückspindelstock -Drehgeber mit digitaler Anzeige im Schleifspindelstock (keine Höhenverstellung mit Spindel möglich) -Neue stabile Innenschleifvorrichtung Durchmesser 80mm oder 100mm mit Höhenjustierung. -Erhöhung der Spitzenhöhe auf max. 225mm -Drehzahlregelung für die Schleifspindel Inklusive: -Bedienwerkzeug -Spannrohr für Futter weiteres Zubehör auf Anfrage. Die Werkzeugmaschine entspricht zum derzeitigen Zeitpunkt nicht den grundlegenden Sicherheits- und Schutzanforderungen wie in der BetrSichV 2015 genannt. Eine Anhebung des erforderlichen Mindest-Schutzzieles ist mittels einer Gefährdungsbeurteilung nach BetrSichV zu ermitteln.

Condition: used, Year of construction: 2003, internal diameter 99999 mm grinding depth 99999 mm swing diameter 99999 mm grinding diameter 99999 mm Hsdpouxft Sefx Ag Ijnl grinding length 200 mm centre height 175 mm CNC internal grinding machine B-axis 4 x 90° Q-axis for adjusting tapers Used with minor maintenance 2 HF internal grinding spindles: -Fischer MFM 1090 90,000 rpm -Fischer MFM 1242/60 42,000-60,000 rpm 1 external grinding motor spindle Fischer MFVS1407 7,000 rpm -Pneumatic power clamping device with 20mm stroke -Dressing device with 2 swivelling arms, hydraulically foldable back -Grinding detection ring sensor Dittel on the workpiece headstock -Passive grinding detection with magnetic base -Paper belt filter 375 l

Condition: used, Year of construction: 2008, operating hours: 18,937 h, functionality: fully functional, machine/vehicle number: 67, STUDER S145cnc INTERNAL GRINDING MACHINE Series 65 Year of manufacture: Sep. 2008 Operating hours: 18,937 Price: €118,000 This is a service-recorded machine: it undergoes an annual maintenance check by STUDER, with all wear parts replaced as needed. The machine has been used exclusively for producing precision spindles, achieving tolerances up to max. 0.0003 mm. The machine operates with grinding oil. Initially used in single-shift operation, in the last two years it has been working two shifts. The machine is in use and available for inspection upon request. The machine is being sold due to new equipment acquisition. Extras: Spindle adapters and flanges available upon agreement. Hnjdpfxsyw Nuxj Ag Iol Specifications: • Swing diameter ..... 448 mm • Center height ..... 225 mm • Workhead (chuck spindle head) with roller bearings, mounting taper ISO50 – spindle nose Ø110 mm, spindle bore Ø50 mm • Machine bed made from Granitan S103 • Worktable swiveling range: +/-30° • Direct measuring system for X and Z axes • Touch-trigger probe Movomatic C25 (switching) • FANUC CNC control system 21i-TB • Portable control unit Studer PCU terminal with LCD display • Machine is currently in operation • Transport arrangements to be made by the buyer The machine is equipped with 4 spindles: one external spindle, two internal spindles, and one internal spindle with longitudinal positioner. RPM – one spindle: 60,000; two spindles: 42,000; one spindle: 5,000 Type: Fischer

Year of construction: 2001, condition: ready for operation (used), - USED - CNC EXTERNAL GRINDING MACHINE CENTRE HEIGHT: 180 mm DISTANCE BETWEEN CENTRES: 1600 mm MAX GRINDING LENGTH: 1100 mm MAX ADMITTED LOAD: 150 Kg GRINDING DIAMETER: 300 mm X-AXIS TRAVEL: 350 mm Hnedpfxsyry Rxo Ag Ijl Z-AXIS TRAVEL: 1250 mm GRINDING WHEEL SIZE: 610 x 120 x 203,2 mm MOTOR POWER: 11 kW CONTROL UNIT: FANUC 18i0 TA WEIGHT: 8400 Kg OVERALL DIMENSIONS: 3380 x 2200 x 1800 mm ACCESSORIES: PAPER FILTER ; PORTABLE HANDWHEEL NOTE: GRINDING WHEEL AUTOMATIC DYNAMIC BALANCER; ARTICULATED SUPPORT FOR GRINDING WHEEL CHANGE; GRINDING WHEEL FORMING SYSTEM; CUTTING IN AIR DEVICE; MARPOSS UNIMAR DIAMETRAL AND AXIAL HEAD