Name of a product | Inventory number | Producer | YOM | Parameters | ||
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SFWR 630 |
241022 | Wotan | 1982 | Max. length of grinding: 300 mm Max. width of grinding: 630 mm Max. workpiece height: mm Spindle bearing grinders: Horizontální Table dimensions: 630 mm Machine weight: 3400 kg |
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BH 25A/1500 |
201837 | TOS Hostivař | 1983 | Max. diameter of grinding: 250 mm Max. length of grinding: 1500 mm Max. weight of workpiece: 300 kg Device for internal grinding: Distance between centres: 1500 mm Machine dimensions l x w x h: 6220 x 2370 mm |
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BUB 32/1500 |
231892 | TOS Hostivař | 1987 | Max. diameter of grinding: 320 mm Max. length of grinding: 1500 mm Max. weight of workpiece: 350 kg Device for internal grinding: NO Total input: 16 kVA Machine dimensions l x w x h: 4190 x 1976 x 1668 mm |
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BUA 25/630 |
231969 | TOS Hostivař | 1988 | Max. diameter of grinding: 250 mm Max. length of grinding: 630 mm Max. weight of workpiece: 60 kg Device for internal grinding: YES Main motor power: 4 kW Machine weight: 3100 kg |
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BUC 63 A /3000 |
231959 | TOS Čelákovice | 1988 | Max. diameter of grinding: 630 mm Max. length of grinding: 3000 mm Max. weight of workpiece: 2500 kg Device for internal grinding: NO |
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BUA 25/630 |
201372 | TOS Hostivař | 1988 | Max. diameter of grinding: 280 mm Max. length of grinding: 630 mm Max. weight of workpiece: 60 kg Device for internal grinding: Machine weight: 3000 kg |
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BPH 320 A |
241304 | TOS Hostivař | 1989 | Max. length of grinding: 1000 mm Max. width of grinding: 320 mm Max. workpiece height: 350 mm Spindle bearing grinders: Horizontální Main motor power: 4 kW Total input: 6,8 kVA |
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NOVA 2GR 10/65 CNC |
161558 | Meccanica Nova | 1989 | Control system Siemens: Simatic S7-300 Max. diameter of workpiece: 65 mm Max. diameter of grinded hole: 65 mm Max. depth of grinding: 40 mm Min. diameter of grinding: 10 mm Travel X-axis: 40 mm |
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BUAJ 28/1000 |
231948 | Erwin Junker | 1992 | Max. diameter of grinding: 280 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 70 kg Device for internal grinding: NO Machine weight: 2500 kg Machine dimensions l x w x h: 3950x1650x1500 mm |
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FFU 1500-50 |
231744 | ABA | 1993 | Max. length of grinding: 1500 mm Max. width of grinding: 500 mm Max. workpiece height: 550 mm Spindle bearing grinders: Horizontální Machine dimensions l x w x h: 3380x1800x2390 mm Machine weight: 14000 kg |
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BU 25H/750 |
231516 | TOS Hostivař | 1995 | Max. diameter of grinding: 250 mm Max. length of grinding: 750 mm Max. weight of workpiece: kg Device for internal grinding: YES |
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BRH 40/1500 |
241327 | Považské Strojárne | 1997 | Max. length of grinding: 1500 mm Max. width of grinding: 470 mm Max. workpiece height: 500 mm Spindle bearing grinders: Horizontální Work surface: 400x1500 mm Machine dimensions l x w x h: 5650x2300x2000 mm |
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BUB 40B NC/3000 |
231954 | TOS Hostivař | 1997 | Max. diameter of grinding: 400 mm Max. length of grinding: 3000 mm Max. weight of workpiece: 350 kg Device for internal grinding: NO Machine weight: 7300 kg Machine dimensions l x w x h: 6300 x 3070 x 2415 mm |
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STP - 2040 ADC |
241287 | Supertec | 1999 | Max. length of grinding: 1000 mm Max. width of grinding: 500 mm Max. workpiece height: mm Spindle bearing grinders: Horizontální Travel X-axis: 1000 mm Travel Z-axis: 500 mm |
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NORMA 75 |
231811 | Schneeberger | 2001 | Control system Fanuc: 160 i - MB control Max. diameter grinding wheel: mm Max. dimensions of workpiece: 360x250x250 mm Table dimensions: 900x260 mm Travel X-axis: 370 mm Travel Y-axis: 250 mm |
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LISSMAC PRIMA-W-413-RRTT |
221489 | Bütfering | 2001 | Control system Siemens: Simatic S7 Max. length of grinding: mm Max. width of grinding: 1300 mm Max. workpiece height: mm Spindle bearing grinders: Horizontální Total input: 58 kVA |
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BN 102 NC |
201544 | Erwin Junker | 2001 | Max. diameter grinding wheel: 280 mm Max. dimensions of workpiece: 630 mm Machine weight: 1000 kg |
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BUB 32/2000 NC |
221690 | TOS Hostivař | 2002 | Control system Siemens: Simatic OP17 Max. diameter of grinding: 320 mm Max. length of grinding: 2000 mm Max. weight of workpiece: 350 kg Device for internal grinding: NO Machine dimensions l x w x h: 4600x1980x1760 mm |
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BUA 25B NC/750 |
241318 | Cetos | 2006 | Max. diameter of grinding: 250 mm Max. length of grinding: 750 mm Max. weight of workpiece: 250 kg Device for internal grinding: YES Distance between centres: 750 mm Machine dimensions l x w x h: 3470 x 2730 x 1820 mm |
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AWH 600 CNC |
241426 | PMT MACHINES | 2007 | Control system Siemens: Sinumerik 840 D Max. diameter of grinding: 350 mm Max. length of grinding: 600 mm Max. weight of workpiece: 80 kg Device for internal grinding: NO Travel X-axis: 400 mm |
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SZ 16-12-10 |
201402 | Heckert - Starrag Group | 2008 | Max. length of grinding: 10000 mm Max. width of grinding: 1795 mm Max. workpiece height: 1200 mm Spindle bearing grinders: Vertikální Machine weight: 70000 kg Machine dimensions l x w x h: 25200x10000x5100 mm |
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T-1254N-4S |
231067 | TOYO | 2009 | Max. diameter of workpiece: 430 mm Max. diameter of grinded hole: 250 mm Max. depth of grinding: mm Travel Z-axis: 730 mm Travel X-axis: 100 mm Main motor power: 5,5 kW |
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EG - 24 CNC |
211186 | EQUIPTOP HITECH CORP. | 2011 | Control system Fanuc: 0i - TC Max. diameter of grinding: 190 mm Max. length of grinding: 400 mm Max. weight of workpiece: 80 kg Device for internal grinding: YES Machine dimensions l x w x h: 2500 x 1900 x 1800 mm |
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SG-30100 AHD |
231697 | Unknown | 2016 | Max. length of grinding: 1020 mm Max. width of grinding: 305 mm Max. workpiece height: 380 mm Spindle bearing grinders: Horizontální Main motor power: 4 kW Max. weight of workpiece: 400 kg |
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GU 32x60S |
241212 | PALMARY | 2016 | Max. diameter of grinding: 300 mm Max. length of grinding: 600 mm Max. weight of workpiece: 150 kg Device for internal grinding: YES Grinding spindle speed: 10 - 300 /min Main motor power: 3,7 kW |
Grinding is a technology of precision chip machining. Nowadays, it is possible to reach precision in order of tenths of micrometers and surface roughness of up to 0,2 micrometer. Grinders are thus indispensable in the machinery industry and form an important part of the production process. In general, grinding is a technology that works on the principle of the material removal from the surface layer of the workpiece with fine grains of abrasive material, which are most often bonded to the grinding wheel.
Among the cylindrical grinders we differentiate grinders with centers and without centers. These machines are used for grinding internal and external rotating surfaces.
In case of center grinders the workpiece is usually clamped between centers and rotation is realized using a driver, which is fixed to the surface of the workpiece and tied to headstock. In most cases the workpiece rotates against the direction of rotation of the grinding wheel. Most common models from producer TOS we can mention:
Grinding is realized using the rotation of the grinding wheel, which grinds the surface of the workpiece as it rotates. Most popular producers of such grinders are: FERMAT, TOS, STUDER, DANOBAT, KELLENBERGER, ERWIN JUNKER, SCHAUDT.
Centerless grinders are also intended for grinding rotary surfaces. The clamping of the workpiece on the machine is different. It is supported with support ruler and the workpiece is placed between two discs – abrasive and drifting. The grinding wheel usually spins faster and does the grinding itself. The drive disc is most often made of flexible material (for example rubber) and ensures sufficient pressure.
A special category of grinders are grinders used for grinding of internal rotating surfaces. They works similarly to center grinders. However, the workpiece is just clamped on one side in the chuck or collet so that the hole can be ground from the other side.