The Raymond Mill (Molino Raymond) is a widely used grinding mill for processing non-metallic minerals with Mohs hardness below 7 and humidity under 6%. It is known for its high efficiency, fine powder output (typically 80–600 mesh), and reliable performance. Here’s a detailed overview:
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Key Features of Raymond Mill
1. Grinding Mechanism:
– Uses a vertical structure with rollers and rings to grind materials through compression and shear forces.
– The rollers rotate around the central axis while pressing against the grinding ring.
2. Particle Size Range:
– Adjustable fineness: 80–600 mesh (0.044–0.18 mm).
– Some models (e.g., upgraded versions like the YGM series) can achieve finer powders up to 1000 mesh.
3. Applications:
– Suitable for barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, activated clay, bentonite, etc.
– Commonly used in mining, cement, chemicals, and building materials industries.
4. Advantages:
– Energy-efficient compared to ball mills.
– Compact design with a small footprint.
– Low noise and dust pollution (equipped with pulse dust collectors).
5. Limitations:
– Not suitable for very hard materials (e.g., quartz above Mohs 7).
– Higher maintenance for wear parts (rollers/rings) if abrasive materials are processed.
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Components of Raymond Mill
– Main Frame: Houses the grinding assembly.
– Grinding Rollers/Rings: Critical wear parts that crush materials.
– Classifier: Controls fineness by separating coarse particles for re-grinding.
– Blower & Cyclone Collector: Transports and collects finished powder.
– Control System: 
usts roller pressure and classifier speed.
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Popular Models
1. Traditional Raymond Mill (3R/4R/5R Series)
– “R” indicates the number of grinding rollers (e.g., 4R = 4 rollers).
2. Upgraded Versions (e.g., YGM or MTM Series)
– Improved pressure springs for higher capacity (5–25 t/h).
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Manufacturers & Suppliers
– Leading brands: Guilin Hongchen
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