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Comparison Bosch GBG 60-20 Professional 200 mm / 600 W vs Bosch GBG 8 Professional 200 mm / 600 W

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Bosch GBG 60-20 Professional 200 mm / 600 W
Bosch GBG 8 Professional 200 mm / 600 W
Bosch GBG 60-20 Professional 200 mm / 600 WBosch GBG 8 Professional 200 mm / 600 W
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Machinebench grinderbench grinder
Specs
Rotation modules22
Location of rotation modulescoaxiallycoaxially
Work partdiskdisk
Voltage230 V230 V
Motor power600 W600 W
Sharpening
universal
universal
Dry processing
Disc diameter200 mm200 mm
Bore diameter32 mm15 mm
Disc thickness25 mm25 mm
Disc speed3000 rpm2900 rpm
General
Dimensions370x230x260 mm
Weight15 kg16.5 kg
Added to E-Catalogjanuary 2018march 2016

Bore diameter

The bore diameter of the dry cutting discs (see above) used by the machine. In order for the nozzle to be used normally with the machine, it must match it not only in diameter and thickness (see the relevant paragraphs), but also in the size of the mounting hole.

Disc speed

The nominal speed of rotation of the disk for dry processing (see above), provided by the machine; for models with adjustable rotation (see below), the maximum rotation speed.

For the same disc diameter and material, a higher speed provides more intensive processing, and a slower rotation contributes to accuracy and precision. In addition, optimal speeds depend on the composition of the disc and the material being processed; detailed recommendations with specific figures for a particular situation can be found in special sources.

A separate category is grinding machines with disk-shaped working elements: in such units, the actual speed of movement of the disk surface relative to the workpiece depends on how close the contact point is to the centre of the disk.
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