Retsch MM 400 - Manual (Page 21)

2/8/2012 21 Retsch GmbH
The milling process
Clamp the machine filled with material to be milled, together with
the milling ball/s in the milling cup holder as described.
Close the hood.
Set the milling parameters.
Start the MM 400.
Do not open the hood during the milling process.
Although the milling cups are brought to a standstill immediately
by the built-in brake, the millling process can no longer be
continued with the remaining running time.
The MM 400 must be restarted and the initial parameters are then
again available.
In order to guarantee quiet running of the MM 400 we recommend
that milling cups with the same mass as far as possible are
clamped in both milling positions.
Do not open the plexiglass hood during the milling process.
Although the milling cups are brought to a standstill immediately
by the built-in brake, the milling process can no longer be
continued with the remaining running time.
The MM 400 must be restarted and the initial parameters are then
again available.
Quantities of milling material and grain sizes
Milling cup
volume in ml
Milling material
quantity in ml
min – max
Ball filling
optional
Number dia. in mm
max. charging grain
size in mm
25 4 – 10
1 15 6
35 6 – 15
1 20 6
50 8 – 20
1 25 8
Milling of materials which can cause a fire or explosion in
the MM 400 is prohibited.
Please take any necessary measures to prevent danger to
persons, depending on the dangerous nature of your
sample.
Please note that the properties, and therefore the
dangerous nature of your sample, can change during the
milling process.