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Grinding machines 
123 List Grid
123Grinding machines
| Name of a product | Inventory number | Producer | YOM | Parameters | ||
|---|---|---|---|---|---|---|
 |
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 |
|
 |
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 |
|
 |
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 |
|
 |
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 |
|
 |
SA 6U |
241442 | WMW | Max. length of grinding: 1500 mm Max. width of grinding: 300 mm Max. workpiece height: mm Spindle bearing grinders: |
||
 |
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 |
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.
Grinders with centers and without centers:
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:
- BHU,
- BUB,
- BUC,
- BUT,
- BUA,
- UB….and many others.
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.
