Name of a product | Inventory number | Producer | YOM | Parameters | ||
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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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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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Kellenberger 1500 R |
192096 | Kellenberger | Max. diameter of grinding: 250 mm Max. length of grinding: 1500 mm Max. weight of workpiece: kg Device for internal grinding: NO Max. height of grinding: 125 mm Table dimensions: 2060 x 140 mm |
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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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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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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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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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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 |
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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 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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BUB E 50/2000 CNC |
201953 | Fermat | 2022 | Control system Siemens: Sinumerik 840D Sl Max. diameter of grinding: 500 mm Max. length of grinding: 2000 mm Max. weight of workpiece: 500 kg Device for internal grinding: YES Main motor power: 11 kW |
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BUC E 63/3000 CNC |
201954 | Fermat | 2022 | Control system Siemens: Sinumerik 840D Sl - 802 D si - Sinumerik 840D Sl - 802 D si Max. diameter of grinding: 630 mm Max. length of grinding: 3000 mm Max. weight of workpiece: 3000 kg Device for internal grinding: YES Main motor power: 18,5 kW |
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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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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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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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BPV 700/2 |
221374 | Kovosvit Holoubkov | Max. length of grinding: mm Clamping area of table: 2000 x 600 mm Max. width of grinding: 700 mm Spindle bearing grinders: Vertikální Main motor power: 22 kW Machine weight: 12000 kg |
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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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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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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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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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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 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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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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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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M1432B / 1000 |
231716 | JAZON | 2019 | Max. diameter of grinding: 320 mm Max. length of grinding: 1000 mm Max. weight of workpiece: 150 kg Device for internal grinding: Spindle taper: MT 4 . Machine dimensions l x w x h: 4269 x 1760 x 1545 mm |
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.