User Manual

Clamping
After a few minutes of grinding, and in the cooling phases, check that the clamping is secure.
4.5 Mass Balance
Important! Symmetrical charging!
For weight balancing, always clamp a grinding jar of the same weight with a cover and
sealing gasket in the opposite pot mounting.
As a temporary solution, use an empty jar as a counterweight.
4.6 Grinding Time
In accordance with the application, the grinding time should be adapted to the heating of
the jar. The temperature inside the jar is about 20-30°C higher than the outside of the
grinding jar.
The max. temperature at the outside walls of the jar is about 100- 110°C (Agate max. 70-
80°C). The grinding time is determined by this temperature. The grinding time which does
not exceed this temperature depends on the sample material, the balls und the speeds. For
this reason the grinding time has to be determined experimentally by the user.
Clue
In the case of grinding at high speeds and with large jars, the grinding time should not
exceed 1 hour (temperature-dependent). Then allow to cool for 0.5 to 1 hour.
 Pay attention to the heating of the material.
 In the case of extended running times, if necessary set a break time for cooling.
 Before switching on again after a cooling phase, check that the clamping is secure.
To reduce the grinding time you can use grinding jars and balls with a higher density and
therefore with a higher impact energy.
In the case of operation for mixing and homogenization at low speeds, the mill may run for
several hours without harm being done.