
NOTICE!
The 24-rib rotor should not be used for grinding plastics
containing carbon or glass fibres. There is a risk of breaking
a tooth.
When using the cyclone separator (14.4850.00), this rotor achieves the
highest air flow rate. By doing so, it accelerates grinding, improves
cooling and helps to protect heat-sensitive grinding stock.
NOTICE!
When the rotors are badly worn, there is a risk of the teeth
breaking off and causing further damage to the device.
®
Replace worn rotors in good time!
6.2 Sieve ring
The final fineness of the source material is determined by the choice of
sieve ring.
For the sieve ring sizes available, see the service manual.
Typically, the final fineness of the source material is smaller than the per-
foration diameter set by the sieve ring. In normal cases, use the sieve
ring with trapezoidal perforation with the direction arrow on it pointing
upwards
↑
.
With this setting, some particles in the source material may be longer
than as specified by the perforation diameter.
If a large share of fine particles is desired, install the sieve ring with the
direction arrow pointed downwards
↓
. This lowers the throughput.
As a general rule, approx. 2/3 of the feeding amount is milled finer than
1/2 of the perforation diameter.
Sieve rings with trapezoidal perforation, available as orig‐
inal accessories from Fritsch, can have manufacturing sieve
opening tolerances of up to +/‐ 20% of the nominal mesh
width.
Using the device
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Содержание premium PULVERISETTE 14
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