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Installation
The requirements of the site for placing ZHM series grinding mill
1.1. The unit should be located in a laboratory or clean industrial environment. Never place
the unit in a location where excessive heat, moisture, or corrosive materials are present.
1.2. Ample room, such as one meter around the machine, is required for maintenance. The
machine should rest on a level and flat surface such that it will support the unit without
shaking.
1.3. Ambient temperature 10～40℃.
2.1. 380V / 50Hz, 3-phase+earth.
2.2. Power supply lead section≥ 1.5mm2, earth lead section≥ 1mm2.
2.3. For power supply, fluctuation of voltage ≤10%, fluctuation of frequency ≤0.5%,
grounding resistance of ground wire ≤10Ω.
CAUTION！ The protective ground wire must be installed.
2.4. The length of unit power cable is 3 meters.
CAUTION！ Before installation of the power cable, be sure the Breaker is OFF.
3. Remove the setscrews
CAUTION！ Remove the setscrews and take out transportation fixed (3 sets).
Adjust foot; enable the equipment stably not to rock
Operating instruction
In has not vessel or vessel had not in tight situation, cannot starting equipment.
1. Fill sample
Fill sample in vessel 30～80 grams. Vessel locates on the plate tight.
CAUTION！Vessel will fail if fill sample in mill box is ≤10 gram .
2. Set time
There are three steps, Hour step (H), Minute step (M) and Second step (S), in the timer. The
value of the timer expresses running time, two- digit integer ahead of letters and two- digit
decimal place behind the letters. Setting time within 3 minutes for Tungsten Carbide vessel and
within 10 minutes for Chrome-Steel vessel is normal.
1. Put the vessel with the sample charged into the fixture of machine. Depress the handle to
position. Put on the cover to position. Push the green bottom to start.
2. In the event of abnormal operation, immediately push the red bottom . Do not open the cover
until the machine fully stops.
3. Open the cover; take out the vessel . Put the discharging sample into the sieve, to make
sure the granularity of 80% discharging sample ≤ 80um.
4. If the sample does not come up to requirement, take the vessel out and allow it to cool down
for 10～20 minutes, then operate again, confirming the best mill time.
5. For the first time, remove the cover of electric control box , push the startup button,
observe motor protector: When the motor is running, the A-phase, B-phase,C-phase indicators
will light; overload does not light. This is normal.
Maintenance instructions
To ensure that the sampling is of highest quality, the vessel must be cleaned after every use.
Use 3～5 drops of lubricant in Oiling nozzle of eccentric and Oiling nozzle of swing stick
once three month. Lubricant is L-CKE.
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