6.1.5 Setting the pressure plate
The bottom position of the link pin is used for standard applications with
the largest possible throughput.
If the samples are easily crushed, it can be advantageous in certain cases
(e.g. for a greater final fineness) to set the pressure plate to the upper
position.
If, however, the material to be crushed is sticky, e.g.
coal, this setting is less suitable.
In the upper position, the opening angle of the movable crushing plate is
decreased so that the particle size distribution of the material to be
crushed is more narrow and the size of the particles is more uniform.
This setting, however, leads to a slightly longer crushing time.
It can be advantageous in certain cases to pre-crush the material with
the pressure plate set to the lower position and then set the pressure
plate to the upper position before performing a second pass.
1.
Disassemble the cover of the exhaust on the back side.
2.
You can see the pressure plate (b) with the bolt (a). Hold the pres-
sure plate (b) firm with the right hand, turn the bolt (a) and pull it
out.
a
Bolt
b Pressure plate
Using the device
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