Name of a product | Inventory number | Producer | YOM | Parameters | ||
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BRH 20 N |
201596 | Považské Strojárne | 1971 | Max. length of grinding: 16 in Max. width of grinding: 9.2 in Max. workpiece height: 18.4 in Spindle bearing grinders: Horizontální |
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NORMA 75 |
231811 | Schneeberger | 2001 | Control system Fanuc: 160 i - MB control Max. diameter grinding wheel: 0 in Max. dimensions of workpiece: 14.4 x 10 x 10 in Table dimensions: 36 x 10.4 in Travel X-axis: 14.8 in Travel Y-axis: 10 in |
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STP - 2040 ADC |
241287 | Supertec | 1999 | Max. length of grinding: 40 in Max. width of grinding: 20 in Max. workpiece height: 0 in Spindle bearing grinders: Horizontální Travel X-axis: 40 in Travel Z-axis: 20 in |
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BUC 63 A /3000 |
231959 | TOS Čelákovice | 1988 | Max. diameter of grinding: 25.2 in Max. length of grinding: 120 in Max. weight of workpiece: 2500 kg Device for internal grinding: NO |
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BU 28/630 |
241275 | TOS Čelákovice | Control system Mitsubishi: M 70 Max. diameter of grinding: 11.8 in Max. length of grinding: 25.2 in Max. weight of workpiece: 65 kg Device for internal grinding: NO Main motor power: 4 kW |
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BPH 320 A |
231741 | TOS Hostivař | Max. length of grinding: 40 in Max. width of grinding: 12.8 in Max. workpiece height: 14 in Spindle bearing grinders: Horizontální Main motor power: 4 kW Total input: 6,8 kVA |
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BUA 25/630 |
231969 | TOS Hostivař | 1988 | Max. diameter of grinding: 10 in Max. length of grinding: 25.2 in Max. weight of workpiece: 60 kg Device for internal grinding: YES Main motor power: 4 kW Machine weight: 3100 kg |
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BUA 16 A |
241482 | TOS Hostivař | 1978 | Max. diameter of grinding: 6.4 in Max. length of grinding: 10 in Max. weight of workpiece: 10 kg Device for internal grinding: YES Machine dimensions l x w x h: 76 x 44 x 60 in Machine weight: 1400 kg |
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BKO 50/1700 |
241346 | TOS Hostivař | Max. diameter of grinding: 20 in Max. length of grinding: 68 in Max. weight of workpiece: 120 kg Main motor power: 7,5 kW Machine dimensions l x w x h: 193.2 x 102 in Machine weight: 7800 kg |
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BPH 320 A |
241304 | TOS Hostivař | 1989 | Max. length of grinding: 40 in Max. width of grinding: 12.8 in Max. workpiece height: 14 in Spindle bearing grinders: Horizontální Main motor power: 4 kW Total input: 6,8 kVA |
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BUT 63/4000 |
241007 | TOS Hostivař | Max. diameter of grinding: 2.52 in Max. length of grinding: 160 in Max. weight of workpiece: 2000 kg Device for internal grinding: NO Main motor power: 22 kW Machine dimensions l x w x h: 506 x 124 x 74.8 in |
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BU 28 1000 |
241249 | TOS Hostivař | Max. diameter of grinding: 11.8 in Max. length of grinding: 40 in Max. weight of workpiece: 60 kg Device for internal grinding: YES Main motor power: 6,6 kW Machine dimensions l x w x h: 112 x 58 x 59.2 in |
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BUA 20 |
241032 | TOS Hostivař | Max. diameter of grinding: 8 in Max. length of grinding: 18 in Max. weight of workpiece: 45 kg Device for internal grinding: NO Machine dimensions l x w x h: 111.6 x 62.8 in Machine weight: 2100 kg |
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BUA 25/1000 NC |
201393 | TOS Hostivař | Control system Siemens: Simatic S7-1200 Max. diameter of grinding: 12.4 in Max. length of grinding: 40 in Max. weight of workpiece: 60 kg Device for internal grinding: YES Machine dimensions l x w x h: 151 x 92 x 80 in |
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BU 16 |
241031 | TOS Hostivař | Max. diameter of grinding: 6.4 in Max. length of grinding: 12.8 in Max. weight of workpiece: 25 kg Device for internal grinding: NO Spindle taper: Morse 3 . Spindle speed: 0 - 2812 /min. |
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BUAJ 28 |
231906 | TOS Hostivař | Max. diameter of grinding: 11.8 in Max. length of grinding: 40 in Max. weight of workpiece: 70 kg Device for internal grinding: YES Machine weight: 2500 kg Machine dimensions l x w x h: 158 x 66 x 60 in |
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BUA 16 A |
231932 | TOS Hostivař | Max. diameter of grinding: 6.4 in Max. length of grinding: 10 in Max. weight of workpiece: 10 kg Device for internal grinding: YES Machine dimensions l x w x h: 76 x 44 x 60 in Machine weight: 1400 kg |
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BH 25A/1500 |
201837 | TOS Hostivař | 1983 | Max. diameter of grinding: 10 in Max. length of grinding: 60 in Max. weight of workpiece: 300 kg Device for internal grinding: Distance between centres: 60 in Machine dimensions l x w x h: 248.8 x 94.8 in |
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BUB 32/2000 NC |
221690 | TOS Hostivař | 2002 | Control system Siemens: Simatic OP17 Max. diameter of grinding: 12.8 in Max. length of grinding: 80 in Max. weight of workpiece: 350 kg Device for internal grinding: NO Machine dimensions l x w x h: 184 x 79.2 x 70.4 in |
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BUB 40B NC/3000 |
231954 | TOS Hostivař | 1997 | Max. diameter of grinding: 16 in Max. length of grinding: 120 in Max. weight of workpiece: 350 kg Device for internal grinding: NO Machine weight: 7300 kg Machine dimensions l x w x h: 252 x 122.8 x 96.6 in |
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BUB 32x1000 |
231907 | TOS Hostivař | Max. diameter of grinding: 12.8 in Max. length of grinding: 40 in Max. weight of workpiece: 350 kg Device for internal grinding: YES Machine dimensions l x w x h: 140.4 x 107.8 x 66.72 in |
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BHU 32 |
231872 | TOS Hostivař | Max. diameter of grinding: 12.8 in Max. length of grinding: 80 in Max. weight of workpiece: 250 kg Device for internal grinding: NO Distance between centres: 25.2 in Main motor power: 7,5 kW |
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BUAJ 28/630 |
221666 | TOS Hostivař | Max. diameter of grinding: 11.2 in Max. length of grinding: 25.2 in Max. weight of workpiece: 70 kg Device for internal grinding: YES Distance between centres: 25.2 in Main motor power: 9,3 kW |
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BUA 25/630 |
201372 | TOS Hostivař | 1988 | Max. diameter of grinding: 11.2 in Max. length of grinding: 25.2 in Max. weight of workpiece: 60 kg Device for internal grinding: Machine weight: 3000 kg |
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BPH 320 A |
241105 | TOS Hostivař | Max. length of grinding: 40 in Max. width of grinding: 12.8 in Max. workpiece height: 14 in Spindle bearing grinders: Horizontální Main motor power: 4 kW Total input: 6,8 kVA |
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.