The Raymond mill is a widely used piece of industrial grinding equipment on the market. It constitutes a self-contained production system—handling everything from raw lumps to finished powder—and features a high degree of system integration that helps reduce operating costs. Furthermore, it boasts high operational efficiency, low power consumption, and produces powder of uniform fineness with a high screening pass rate.
The Raymond mill is widely applicable for the fine pulverization of over 280 types of materials across various industries—including mining, chemicals, and construction—such as barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, and glass. It is suitable for non-flammable and non-explosive materials with a Mohs hardness of no greater than 9.3 and a moisture content of less than 6%.
Raw materials are conveyed via an elevator to a storage hopper, then fed uniformly by an automatic feeder into the grinding chamber of the main unit. Inside the chamber, the material is scooped up by blades and directed between the grinding rollers and the grinding ring, where it is continuously pulverized into fine powder through impact and rolling action. The ground fine powder is carried by an airflow into an analyzer for classification; oversized particles fall back down for further grinding, while qualified fine powder travels with the airflow into a cyclone separator for separation from the air. The separated powder is then discharged through a discharge valve, ready for packaging and shipment.
The transmission mechanism of the Raymond mill's main unit features a sealed gearbox and pulleys, ensuring smooth rotation and reliable operation.
Compared to other grinding equipment, it boasts a superior screening rate—reaching as high as 99%—a level of efficiency that other grinding machines typically cannot achieve.
All wear parts are manufactured from high-manganese steel, ensuring a long service life; furthermore, the motors utilized are all products that meet national standards.
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| Model | 4525 | 4119 |
| Feeding Size(mm) | ≤30 | ≤25 |
| Output Size(mm) | 0.173-0.044 | 0.173-0.044 |
| Shift Output of Different Material Fineness(t) | 16-176 | 8-78 |
| Rotation Speed of Central Shaft(r/min) | 82 | 105 |
| Ring Diameter(mm) | 1770 | 1400 |
| Roller Diameter(mm) | 450 | 410 |
| Roller Height(mm) | 250 | 190 |
| Main Motor(kw) | Y315M-4-132 | Y280S-4-75 |
| Fan Motor | Y315M-4-132 | Y280S-4-75 |
| Analyzer Motor | YCT250-4A-18.5 | YCT200-4B-7.5 |
| Model | Output Size (mm) |
Shift output of different materia fineness(t) |
| 4525 | 0.173-0.044 | 16-176 |
| 4119 | 0.173-0.044 | 8-78 |