The high-pressure micro-powder mill is an advanced grinding device widely utilized in the mining and metallurgy sectors. Its primary function is to process raw ore materials by subjecting them to the compressive force of grinding rollers against a grinding ring, thereby reducing them into micro-fine powders to meet the diverse production requirements of various industrial fields. By harnessing the combined forces of grinding and friction generated under high pressure, this equipment compresses and pulverizes raw materials into extremely fine particles, thereby significantly enhancing both the surface area and reactivity of the processed material.
Suitable for high-hardness materials with a Mohs hardness of 9.3 or lower—such as kaolin, limestone, calcite, marble, barite, gypsum, pottery clay, coal, activated carbon, feldspar, talc, and others.
During operation, the material to be pulverized is conveyed by an elevator into a storage bin, and subsequently fed into the main grinding chamber. There, it is scooped up by blades and subjected to crushing and kneading action between the grinding rollers and the grinding ring. A blower directs an airflow into the grinding chamber; this airflow carries the suspended powder into an analyzer for air classification. Particles that do not meet the required fineness fall back down for further grinding, while those that meet the specifications enter a cyclone collector. Here, the powder is separated from the air and discharged through the outlet as the finished product.
Under the action of high-pressure springs, the crushing force exerted by the grinding rollers on the material is increased by 800–1200 kg. Utilizing this high-pressure grinding mechanism, materials are rapidly pulverized into fine powder, resulting in a high effective grinding rate.
The grinding process of this equipment ensures a uniform distribution of particles, thereby guaranteeing the quality and consistency of the final product.
The grinding process of the high-pressure micro-pulverizer features relatively low energy consumption; furthermore, as it requires no addition of chemical substances, it is environmentally friendly.
By adjusting the grinding parameters, the fineness of the final product can be precisely controlled to meet the specific requirements of various industries.
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| Parameter Model | Micropowder93 | Micropowder92 | Micropowder87 | Micropowder76 | Micropowder66 |
| Feeding size（mm） | ≤25 | ≤25 | ≤20 | ≤20 | ≤15 |
| Size of finished product（mm） | 0.125-0.010 | 0.125-0.033 | 0.125-0.010 | 0.125-0.033 | 0.125-0.010 |
| Shift output of different material fineness（t) | 0.8-12 | 0.6-10 | 0.4-8 | 0.3-6 | 0.2-4 |
| Rotate speed of pulverizing ring（r/min） | 140 | 148 | 160 | 170 | 180 |
| Diameter of pulverizing ring（mm） | 1006 | 973 | 907.5 | 850 | 725 |
| Diameter of pulverizing roller（mm） | 300 | 300 | 270 | 250 | 210 |
| Height of pulverizing roller（mm） | 160 | 160 | 150 | 150 | 150 |
| Main Motor(kw) | Y225M-8-30 | Y225M-8-22 | Y225M-8-22 | Y225S-8-18.5 | Y225M-8-15 |
| Fan Motor | Y180M-2-22 | Y180L-4-22 | Y160L-4-18.5 | Y160L-4-15 | Y160L-4-11 |
| Analyzer Motor | YCT180M-4A-4 | YCT180M-4A-4 | YCT180M-4A-4 | YCT160-4B-3 | YCT160-4B-3 |
| Parameter Model | Feeding size （mm） |
Size of finished product（mm） |
| Micropowder93 | ≤25 | 0.125-0.010 |
| Micropowder92 | ≤25 | 0.125-0.033 |
| Micropowder87 | ≤20 | 0.125-0.010 |
| Micropowder76 | ≤20 | 0.125-0.033 |
| Micropowder66 | ≤15 | 0.125-0.010 |