NOTICE The grinding jars must always be closed with the opening aid! Hand-tight screwing is
not sufficient! This prevents the ejection of sample material especially when the device is
operated at 2 000 revolutions per minute.
6.8.2 Opening
Risks of burns and scalding
Hot grinding jar and/or sample material
− The sample material and grinding jar can get very hot during the grinding
process.
• After grinding, always wear protective gloves when handling the
grinding jar.
• Never open hot grinding jars!
• Allow grinding jars to cool down to room temperature before
opening them.
NOTICE Do not open the grinding jar inside the device. The excess pressure generated during
the grinding process may be discharged suddenly when the grinding jar is opened, ejecting
sample material. Only open the grinding jar once it has cooled down and only in a safe position
(e.g. under a suction device).
Loosen the clamping screws (SP) by means of the opening aid (OE) included in the delivery.
6.8.3 Grinding Jar Identification
All grinding jars, as well as the corresponding lids can be identified by a labelling area on one of
the outer sides. The labelling area provides information on the size and material of the grinding
jar.
6.9 Ball Sizes and Speeds
With the Emax a very large amount of energy enters the sample material. This high amount of
energy also acts on the grinding jar and the grinding balls.
Therefore, depending on the jar size the following recommendations for the sample amount and
the ball sizes used apply. Likewise note the recommended speeds depending on the grinding
jar material.
6.9.1 Recommended Ball Sizes
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