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Powerful HM Series Hammer Mill for Sale - China Factory Suppliers for Fine Sand Processing Equipment
Working Principle
Kemai HM series hammer mill is mainly composed of a shell, a rotor, a bearing iron and a grate. The shell is divided into two parts, which are welded by cutting steel plates, and the other parts are connected by bolts. The interior of the case is inlaid with high manganese steel liner, easy to replace after wear; An array of hammers with regular distribution is installed on the spindle, and a rotor is formed with a turntable and a hammer shaft. The main engine drives the main shaft through the motor and the triangle belt, so that the rotor rotates, the hammer head is extended to all sides by the centrifugal force generated by the rotation, and the large material enters the crushing chamber from the feed port, and is smashed by the high-speed hammer. The crushed qualified material is discharged by the grate with gaps at the bottom, and the unqualified material is left in the crushing chamber, and is repeatedly acted on by the hammer and the bearing iron block until it can be discharged qualified. In order to avoid clogging, the water content of the crushed material is generally not more than 5%.
Characteristic and feature of HM series hammer mill
- Low energy consumption, grinding system power consumption is 20 ~ 30% lower than the ball mill, and with the increase of raw material water, the energy-saving effect is more obvious.
- The wearing parts are made of special raw materials, and the service life of the wearing parts can generally reach more than one year, and the service life can reach 2-5 years when processing calcium carbonate and calcite.
- It is equipped with a limiting mechanism to prevent direct contact between the roller sleeve and the mill liner, to avoid destructive and violent vibration caused by friction and collision between metals, and to increase safety.
- HM hammer mill uses a fully sealed system, the system operates under negative pressure, no dust, clean environment.
Technical parameters of HM series hammer mill
| Model | HM-75 | HM-90 | HM-132 |
|---|---|---|---|
| Rotor diameter (mm) | 750 | 900 | 1150 |
| Rotor length (mm) | 800 | 1200 | 1500 |
| Rotor speed (r/min) | 800-1000 | 800-1000 | 550-800 |
| Max feeding size (mm) | <50 | <70 | <90 |
| Output size (mm) | 0-3 | 0-5 | 0-8 |
| Capacity (T/h) | 45585 | 25-45 | 50-80 |
| Power (Kw) | 75 | 90 | 132 |
| Hammer quantity (pcs) | 18 | 32 | 32 |
| Dimension (L×W×H/mm) | 2310×1665×1610 | 2840×2100×2020 | 3720×2650×2540 |
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Frequently Asked Questions
What is the working principle of the HM series hammer mill?
The mill features a rotor with regularly distributed hammers. As the motor drives the rotor to rotate at high speeds, materials enter the crushing chamber and are smashed by the centrifugal force of the hammers and bearing iron blocks. Qualified materials are discharged through the bottom grate.
How energy-efficient is the HM series hammer mill compared to a ball mill?
The grinding system power consumption of the HM series hammer mill is 20% to 30% lower than that of a traditional ball mill. The energy-saving performance becomes even more pronounced when processing raw materials with higher moisture levels.
What is the expected service life of the wearing parts?
Thanks to specialized raw materials, the wearing parts generally last over one year. When processing softer minerals like calcium carbonate and calcite, their service life can reach between 2 to 5 years.
What safety features are integrated into the HM hammer mill?
It is equipped with a limiting mechanism that prevents direct contact between the roller sleeve and the mill liner. This design eliminates violent vibrations and damage caused by metal-to-metal friction and impact.
What is the maximum allowable moisture content for feeding materials?
To prevent the grate and crushing chamber from clogging, the water content of the crushed material should generally not exceed 5%.
Is the HM series hammer mill environmentally friendly?
Yes. The HM hammer mill utilizes a fully sealed system operating under negative pressure. This setup ensures dust-free operation and maintains a clean working environment.