Name of a product | Inventory number | Producer | YOM | Parameters | ||
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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 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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BUA 25B CNC/750 |
191326 | Cetos | 2022 | Control system Siemens: Sinumerik 840 D 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 |
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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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BPV 40A/2000 |
231565 | TOS Hostivař | Max. length of grinding: 2000 mm Max. width of grinding: 400 mm Max. workpiece height: 500 mm Spindle bearing grinders: Vertikální Main motor power: 70 kW Machine dimensions l x w x h: 7600 x 2900 x 2890 mm |
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BPH 20 |
202054 | Považské Strojárne | Max. length of grinding: 630 mm Max. width of grinding: 200 mm Max. workpiece height: 300 mm Spindle bearing grinders: Horizontální Clamping area of table: 200 x 630 mm Max. weight of workpiece: 180 kg |
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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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BKUJ 50 |
231418 | TOS Hostivař | 1966 | Max. diameter of grinding: 500 mm Max. length of grinding: 1800 mm Max. weight of workpiece: 250 kg Machine dimensions l x w x h: 4720 x 2100 x 1750 mm Machine weight: 7800 kg Main motor power: 12,5 kW |
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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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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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BUA 25/1000 NC |
201393 | TOS Hostivař | Control system Siemens: Simatic S7-1200 Max. diameter of grinding: 310 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 60 kg Device for internal grinding: YES Machine dimensions l x w x h: 3775x2300x2000 mm |
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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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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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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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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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BUC 63/2000 |
211562 | Cetos | 1980 | Control system Kavalír: K51-1 Max. diameter of grinding: 850 mm Max. length of grinding: 2000 mm Max. weight of workpiece: kg Device for internal grinding: NO |
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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 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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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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SA 6U |
241442 | WMW | Max. length of grinding: 1500 mm Max. width of grinding: 300 mm Max. workpiece height: mm Spindle bearing grinders: |
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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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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 E 50/1000 CNC |
201952 | Fermat | 2022 | Control system Siemens: Sinumerik 840D Sl Max. diameter of grinding: 500 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 500 kg Device for internal grinding: YES Main motor power: 11 kW |
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BUAJ 28/630 |
221666 | TOS Hostivař | Max. diameter of grinding: 280 mm Max. length of grinding: 630 mm Max. weight of workpiece: 70 kg Device for internal grinding: YES Distance between centres: 630 mm Main motor power: 9,3 kW |
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BRH 20 N |
201596 | Považské Strojárne | 1971 | Max. length of grinding: 400 mm Max. width of grinding: 230 mm Max. workpiece height: 460 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.