A pendulum pulverizer is a type of grinding mill used for crushing and pulverizing materials into fine powders. It operates based on the pendulum principle, where grinding rollers swing outward due to centrifugal force and press against a grinding ring to crush the material.
How a Pendulum Pulverizer Works:
1. Material Feeding – Raw material is fed into the grinding chamber.
2. Grinding Rollers & Ring – Rollers, suspended like pendulums, rotate and crush the material against a stationary grinding ring.
3. Centrifugal Force – As the main shaft rotates, the rollers swing outward, applying pressure to the material.
4. Classification – Crushed particles are carried by airflow to a classifier, where fine particles are separated while coarse ones return for further grinding.
5. Collection – The fine powder is collected in a cyclone or bag filter.
Applications:
– Mineral processing (limestone, gypsum, barite)
– Coal pulverization
– Cement production
– Chemical industry (fertilizers, pigments)
– Pharmaceuticals
Advantages:
– High efficiency in fine grinding
– Adjustable fineness (typically 80–400 mesh)
– Low energy consumption compared to ball mills
– Reliable operation with minimal vibration
Types of Pendulum Pulverizers:
1. Raymond Mill (R-Series) – Classic design with pendulum rollers.
2. High-Pressure Suspension Grinder – Enhanced pressure for finer output.
3. Ultrafine Pendulum Mill – For superfine grinding (up to 2500 mesh).
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