b. There must not be any iron nails, metal blocks, hard rocks in the raw materials, the
raw material must ensure clean.
c. In order to prevent the rollers from quick wear, the roller should be separated by
turning the hand wheel after finishing grinding.
6. The adjustment of the main parts
In order to keep the mill in a serviceable condition and extend the service life, you
should regularly make adjustments and maintain the mill. The operator should be
familiar with the concepts and the procedure to adjust and maintain the complete
machine and it’s parts.
6.1 The adjustment of flow (please check table 1)
Because the crushing degree is different, the gap of feeding hopper can be adjusted to
ensure uniform feeding at any time. The method of adjusting the flow is to revolve the
knob on the regulating mechanism. The width of the feed opening will change when you
revolve the knob, and the inflow volume of raw material is likely to change. When you
need to adjust the flow, the adjustment of the gap between the rollers also should be
adjusted at the same time.
6.2 The adjustment of the gap between the rollers (please check table 1)
1) The initial adjustment before running the machine
The gap between mill rollers should be adjusted to 0.4-0.8mm before the whole
machine leaves the factory. If there is a little change during shipping, the user can check
the gap by visual inspection, or check the gap with a feeler gauge. If the gap is
inconsistent, you can loosen the locknut, and rotate the left and the right hand wheel
according to the rotation direction identification. You can fasten the locknut when the
gap between the rollers is consistent.
2) The adjustment after running the machine
After running the machine, put the 60g/m2 paper into the space between two rollers,
and turn the fast roller to pass the paper through. Then you can calculate the evenness
of the interval between the two mill rolls by observing the distribution of indentation.
Measure three times, and take the average. The length of paper is 100mm, and the
width of paper is 0.9 times the length of mill roll. You can tighten the nut if the
unevenness of the interval is too large. Turning the left and right hand wheel according
to the indication of the handwheel dial and the rotating direction identity . Keep the
uniform evenness, then put the raw material into the feeding hopper. Rotating the