Name of a product | Inventory number | Producer | YOM | Parameters | ||
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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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BHU 32 |
231872 | TOS Hostivař | Max. diameter of grinding: 320 mm Max. length of grinding: 2000 mm Max. weight of workpiece: 250 kg Device for internal grinding: NO Distance between centres: 630 mm Main motor power: 7,5 kW |
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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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BUAJ 28 |
231906 | TOS Hostivař | Max. diameter of grinding: 295 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 70 kg Device for internal grinding: YES Machine weight: 2500 kg Machine dimensions l x w x h: 3950x1650x1500 mm |
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BUB 32x1000 |
231907 | TOS Hostivař | Max. diameter of grinding: 320 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 350 kg Device for internal grinding: YES Machine dimensions l x w x h: 3510x2695x1668 mm |
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BUA 16 A |
231932 | TOS Hostivař | Max. diameter of grinding: 160 mm Max. length of grinding: 250 mm Max. weight of workpiece: 10 kg Device for internal grinding: YES Machine dimensions l x w x h: 1900x1100x1500 mm Machine weight: 1400 kg |
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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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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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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 |
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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BUT 63/4000 |
241007 | TOS Hostivař | Max. diameter of grinding: 63 mm Max. length of grinding: 4000 mm Max. weight of workpiece: 2000 kg Device for internal grinding: NO Main motor power: 22 kW Machine dimensions l x w x h: 12650x3100x1870 mm |
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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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BU 16 |
241031 | TOS Hostivař | Max. diameter of grinding: 160 mm Max. length of grinding: 320 mm Max. weight of workpiece: 25 kg Device for internal grinding: NO Spindle taper: Morse 3 . Spindle speed: 0 - 2812 /min. |
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BUA 20 |
241032 | TOS Hostivař | Max. diameter of grinding: 200 mm Max. length of grinding: 450 mm Max. weight of workpiece: 45 kg Device for internal grinding: NO Machine dimensions l x w x h: 2790 x 1570 mm Machine weight: 2100 kg |
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30-15 S 3030 |
241066 | WALDRICH COBURG GmbH | 1971 | Max. length of grinding: 5540 mm Max. width of grinding: 1500 mm Max. weight of workpiece: kg Travel X-axis: 5400 mm Travel Y-axis: 1700 mm Travel Z-axis: 1545 mm |
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GRW-4010 |
241085 | Goodway | 2018 | Control system Mitsubishi: M 70 Max. diameter of grinding: 400 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 750 kg Device for internal grinding: NO |
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BPH 320 A |
241105 | TOS Hostivař | 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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RS 1000 C CL |
241138 | Geibel & Hotz | 2019 | Control system B & R: Max. diameter of grinding: 280 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 100 kg Device for internal grinding: NO Max. diameter grinding wheel: 400 mm |
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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 |
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BU 28 1000 |
241249 | TOS Hostivař | Max. diameter of grinding: 295 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 60 kg Device for internal grinding: YES Main motor power: 6,6 kW Machine dimensions l x w x h: 2800x1450x1480 mm |
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BU 28/630 |
241275 | TOS Čelákovice | Control system Mitsubishi: M 70 Max. diameter of grinding: 295 mm Max. length of grinding: 630 mm Max. weight of workpiece: 65 kg Device for internal grinding: NO Main motor power: 4 kW |
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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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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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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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ELB |
241322 | ELB-SCHLIFF | Max. length of grinding: 600 mm Max. width of grinding: 300 mm Max. workpiece height: mm Spindle bearing grinders: Horizontální |
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.