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
	from £225.99 up to £262.42 Compare prices 3	from $244.00 Outdated Product
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Machine	bench grinder	bench grinder
Specs
Rotation modules	2	2
Location of rotation modules	coaxially	coaxially
Work part	disk	disk
Voltage	230 V	230 V
Motor power	600 W	600 W
Sharpening	universal	universal
Dry processing
Disc diameter	200 mm	200 mm
Bore diameter	32 mm	15 mm
Disc thickness	25 mm	25 mm
Disc speed	3000 rpm	2900 rpm
General
Dimensions	370x230x260 mm
Weight	15 kg	16.5 kg
Added to E-Catalog	january 2018	march 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.