FRITSCH PULVERISETTE 9 - Manual (Page 8)

2.2.1 Operating principle
The vibrating cup mill functions according to the principle of vibratory
milling. This means that the grinding set is clamped on a vibrating struc-
ture and the grinding bodies (puck and rings) in it are accelerated by cen-
trifugal forces and the grinding stock is comminuted by impact and fric-
tion. The grinding sets (made of tempered steel, hardmetal tungsten
carbide or agate) are closed by the inserted seal so that losses are
avoided during wet or dry grinding.
Various speeds of the powerful drive motor are available; 600 - 1500
rpm in steps of 50 rpm. This allows the grinding effect to be adjusted to
practical requirements. When using the grinding set made of agate,
which is sensitive against impact, speeds higher than 750 rpm are limited
automatically to 750 rpm.
NOTICE!
The grinding set made of agate may be run only at a max-
imum speed of 750 rpm. (Risk of destruction of the grinding
set!)
2.3 Obligations of the operator
Before using the PULVERISETTE 9, this manual is to be carefully read and
understood. The use of the PULVERISETTE 9 requires technical knowl-
edge; only commercial use is permitted.
The operating personnel must be familiar with the content of the oper-
ating manual. For this reason, it is very important that these persons
actually receive the present operating manual. Ensure that the operating
manual is always near the device.
The PULVERISETTE 9 may exclusively be used within the scope of applica-
tions set down in this manual and within the framework of guidelines
put forth in this manual. In case of non-compliance or improper use, the
customer assumes full liability for the functional capability of the PUL-
VERISETTE 9 and for any damage or injury arising from failure to fulfil this
obligation.
By using the PULVERISETTE 9 the customer agrees with this and recog-
nizes that defects, malfunctions or errors cannot be completely
excluded. To prevent risk of damage to persons or property or of other
direct or indirect damage, resulting from this or other causes, the cus-
tomer must implement sufficient and comprehensive safety measures
for working with the PULVERISETTE 9.
Safety information and use
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