CB

Welcome to G+H Grinding Ltd. Geibel & Hotz GmbH in Germany


	G+H CNC-surface- and profile grinding machine type *CB!*

		*CB-Technology* means a great number of CNC-functionalities in an economically priced machine. A color-display is built in for best output and ergonomics.



				*The CB-Type* includes all the properties of the SD-type with additional *CNC*-features. The CB-Type can dress several contours or outlines into the grinding-wheel, such as convex or concave radiusses, chamfers or angles. Also You can combine different contours in one dressing-job. Furthermore the CB-type can do several grinding-jobs in one cycle. The CB-type is managing different grinding-wheels, dressers and workpieces in an easy to handle card-index.





						The display optionally can be switched into any language. Favourites (without additional charge) are: English, French, Spanish, Italian, Czech, Polish,



				The CB-type has all axes electromecanically driven. The Y- and Z-axis is driven by a synchron-servo and a ball-screw, the X-Axis has a special 3-step reducted tooth-belt, patented by *GH-grinding*.also driven by a synchron-servo. Above the grinding-area of 800mm x 400mm the x-axis is driven by the legendary WGT-spindle.

Precision speed-stroke-, full-cut- and creep-feed grinding with the Z-Type from FS 420 Z up to FS 840 Z.

The letter "Z" stands for the german word "Zahnriemen" which means the toothed belt driven machine table. This drive has been utilized for our rapid-lift- and full-cut grinding machines for more than three decades.
The toothed belt drive combines the advantages of rapid lift grinding with those of creep feed grinding in one machine.
Rapid lift grinding using vertical automatic control results in high operating speed. For creep feed grinding a frame cycle is available.

Precision rapid lift and full cut grinding machines from FS 850-GT up to FS20100GT series

The letters "GT" stand for the ballring screw drive or also cvalled worm gear drive, in German called "Gewinde-Trieb" installed as the transmission element for table motion.
In ballring screw drives, ball bearings are used as load bearing elements between nut and spindle.
The inner rings of these ball bearings which are custom-formed for this type of application grip into the spindle gear and roll off on its flanks of thread.
The standard nut consists four ball bearings which are reciprocally set against the spindle using springs.
The result is a prestressed system with minimum reverse tolerance. The collar ballring screw drives allow for low, as well as very high speeds because there is no limitation to the rate of revolutions due to the nut construction.
Additional benefits are very-low-noise operation at constant torque, as well as maximum possible efficiency of up to 98%!

Available dimensions:

Length from 400mm to 2.000mm (favourites from 400mm to 1.000mm).
Width from 200mm to 1.000mm (favourites from 200mm to 500mm).
Height (depends on length and width) from 300mm to 900mm.

Power of the grinding wheel (depends on length and width) from 2,0kW to 37,5kW

Standard types

Line 420    W = 400mm, B = 200m, H = 300mm, P = 2,0 kW
Line 640    W = 600mm, B = 400mm, H = 375mm, P = 3,7kW
Line 840   W = 800mm, B = 400mm, H = 375mm, P = 3,7kW
Line 1050  W = 1.000mm, B = 500mm, H = 425mm, P = 9,0 kW

L = Length, W = Width, H = Height, P = Power of the grinding wheel.
Standard types can be delivered in a short time.

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