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The type of sample preparation depends on the requirements in the
analysis to be made. For this reason it is important to select the
correct preparation for the analysis in question. Perten Instruments
can offer two types of Laboratory Mills, the hammer type mill and
the disc type mill. Disc mills are used when grinding samples for
moisture determination, whereas hammer mills are used for most other
applications, such as Falling Number, Glutomatic and NIR analysis
for example.
The hammer
mills grind by means of a high speed rotating steel "hammer"
and has a sieve in the periphery through which the sample leaves
the grinding chamber. By selecting different sieves the particle
size distribution in the sample can be varied. The hammer mill is
typically used to produce a fine and homogeneous sample. The Perten
Instruments hammer mills can grind up to 300 gram samples which
is the requested amount in for example the Falling Number test.
Because of the heat development in the grinding operation and the
high air flow through the grinding chamber this type of mill is
not suited for grain moisture determination.
The disc
mills grind the sample between one stationary and one rotating
metal disc with teeth. The main application for the disc mills is
grain moisture determination thanks to the possibility to grind
grain without moisture loss. The particle size from the mill can
be varied by adjusting the distance between the stationary and the
rotating disc. There are also different disc types to choose from.
| Disc
mills |
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Laboratory
Mill 3303 is a disc mill specifically designed
for grain moisture analysis and is approved for both oven
and NIR moisture tests. It is also adopted by AACC, standard
methods No. 55-30 to determine wheat hardness by PSI (Particle
Size Index). It can grind 50 g grain in 10-15 seconds and
for moisture determination typically 15 grams is ground
in 5 seconds.
Download pdf file for more information. Right-click and
select "Save target as"
Product
sheet, English
Product
sheet, German
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Laboratory
Mill 3600 is a larger disc mill also approved for
oven and NIR moisture tests. It is also well suited for
grinding large size material such as feed raw material,
pellets etc.
Download pdf file for more information. Right-click and
select "Save target as"
Product
sheet, English
Product
sheet, German
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Laboratory
Mill Accessories
We have listed the most common Laboratory Mill accessories and replacement
items parts below. If you are interested in ordering, you are welcome
to contact your distributor. Please note the Part No. and use it
in all contacts with your distributor. If you do not know who your
distributor is, please contact
us.
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Part No |
Sieve
0,8 mm
Drive belt
Grinding hammer, hardened
Nylon Bag
Grinding disc, type 1, standard
Sample container
Plastic sample container
Adapter for plastic sample container
Grinding disc, type 1, standard
Plastic sample container
Adapter for plastic sample container
Plastic funnel
Brush for cleaning
Plastic baton
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For LM 3100,
LM 120
For LM 3100, LM 120
For LM 3100, LM 120
Only for LM 120
Medium, 4x3 teeth, for LM 3303
Metal, short, for LM 3303
250 ml, with lid, for LM 3303
For LM 3303
Medium, for LM 3600
500 ml, with lid, for LM 3600
For LM 3600
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Perten Instruments AB
P.O. Box 5101, S-141 05 HUDDINGE, Sweden
Visitor's address Källängsvägen 2, Segeltorps Industriområde
Tel +46 8 88 09 90
Fax + 46 8 88 12 10
E-mail info@perten.com
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