Commissioning - IKA MF 10 Mode D'emploi

Impact grinding:
The hammer mill crushes soft, medium-hard and brittle ma-
terials to approximately 6 Mohs hardness (feldspar: 6 Mohs,
quartz: 7 Mohs). With greater hardness the wear on the
grinding tools is much higher and grinding is therefore un-
economical.
Anything can be ground that breaks, is dry does not contain
very fatty materials.
The following is a selection of substances drying to grind:
grain, barley, corn, malt, pectin, roasted coffee, nutshells,
bones, ergot, coal, charcoal, coke, peat, ash, cellulose,
drugs, artificial fertilizers, refractory clay, feed, spices, glass,
resin, potash, cores, salts, cinders, stones and soil (bauxite,
gypsum, limestone, dry clay, mica, pumice stone, gneiss,
magnetite, heavy spar, sandstone, brown iron ore, etc.).
The scope of application can be further enhanced through
embrittlement of the ground material (e.g. with dry ice and/
or liquid nitrogen). Tough ground material must be cooled,
e.g. crushed dry ice put into the grinding funnel.
The ground material must be coarse-crushed into maximum
10 mm chunks beforehand.
Note: With abrasive materials (e.g. stones or glass) it will
be necessary to clean the dosing sluice repeatedly because
settles grinding dust in the guides and it thus rotating the
dosing sluice is no longer is possible.
Make certain that the mill drive stands firmly on a table. Com-
ply with the ambient conditions given in the technical data.
The collecting pan (Pos. A 19) is placed on its base in such a
way that the round magnets fit into the recess on the base.
Impact grinding mill:
Assembling the impact grinding head:
The ON/OFF switch Pos. A 13 must be set to zero and the
power supply plugs must have been disconnected out before
beginning assembly of the impact grinding head. First the
three threaded bolts Pos. P 5 (see fig. 1) are screwed out to
the same height (distance between hexagon of the bolt and
the flat surface on the grinding head is approximately 2mm,
this corresponds to two turns).
Make sure that the flange piece on the drive and on the head
are clean and free of dust. Abrading both fitting parts with a
slightly oiled rag facilitates assembly. The adjustment spring
must be in the area of the opening (in the back wall of the
mill chamber). The head is now pushed onto the drive, while
making certain that the parts do not jam. The threaded bolt
ends must fit into the drillings of the transmission cover. Thus
the head has be rotated slightly in a clockwise direction. After
the bolts are fitted in the head is turned until it is stopped by
the bolts and so that the head now stands upright.
Cutting-Grinding:
The cutting-grinding mill cuts up bulky, elastic, fibrous, cel-
lulose and soft materials. Mixing materials such as various
types of waste must be free of iron and non-ferrous metals.
The feedings may not be damp and greasy, as they will oth-
erwise stick to the grinding surface and filter.
The following is a list of the materials that may be processed:
Leaves, fibers, spices, grain, hop, wood, pasteboard, paper,
hay, straw, plastics, tobacco, peat, feed, pasta, roots and
branches, etc..
The scope of application can be further enhanced through
embrittlement of the ground material (e.g. with dry ice and/
or liquid nitrogen).
Bulky material is metered with the tubular slide valve, the feed
grain size should not be not greater than 15 mm. Bulky mate-
rials (e.g. plastic bags) are metered by means of plungers, but
the pieces should not be too large (e.g. pieces of fir wood:
max. diameter 10 mm, max. length 40 mm; pieces of foil:
max. width 30 mm, max. length 100 mm).

Commissioning

Now close and lock the grinding chamber door with the
operating knob Pos. P10 (3 to 5 revolutions are sufficient).
This ensures that the grinding chamber is optimally aligned
so that the door can be easily opened and closed later. Now
the screw mountings are tightened with the fork wrench
provided. Make certain that the pins are tightened toward
the head.
Note: Tighten the pins evenly (see fig. 3.1)!
Now the hammer rotor Pos. P 13 can be installed. The rotor
is pushed onto the drive shaft as shown in Fig. 3, fastened
with the disk Pos. P 11 and the countersunk screw Pos. P
15. The countersunk screw, P 15, is tightened with the Allen
key supplied, while the rotor is held with the face spanner
that is included in delivery. The spanner is positioned so that
the pins of the spanner are inserted into the bore holes on
the face of the rotor. The disc must be turned so that the
bore hole in the rotor is accessible for the spanner pins.
Note: After tightening the cheese head screw with the Al-
len key, turn the hammer rotor once (360°). The rotor may
not touch. Repeat assembly if necessary.
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