Retsch MM 500 Vario, Manual

Page: 43 / 87

Operating the Device
43
Fig. 19: Grinding jars and grinding balls
Open the grinding jar as follows:

Open the grinding bowl by turning the grinding jar lid.

If the grinding jars (SP) cannot be opened, use the opening aids.
6.5.2 Filling the grinding jar
Fill the grinding jar as follows:

Fill the right number of grinding balls made of a suitable material into the grinding chamber
(MR) of the grinding jar.

Add material for grinding to the grinding balls in the grinding chamber (MR) of the grinding
jar.

When filling the grinding jar, take care not to fall below 1/4 of the total volume of the
grinding jar.
The ideal fill quantity in the grinding jar is 1/3 material and 1/3 grinding balls, thus
corresponding to 2/3 of the total volume.
In the case of wet grinding, the ideal fill quantity in the grinding jar is 60 % grinding balls
and 1/3 material.
6.5.3 Closing the grinding jar
Close the grinding jar as follows:

Screw the grinding jar lid onto the grinding jar.

If necessary, use the opening aid for a tight seal the grinding jars.