Proven pendulum roller mill technology for fine powder grinding of limestone, calcite, dolomite, and non-metallic minerals. Reliable, efficient, and low-maintenance operation.
The Raymond mill (pendulum roller mill) is a classic grinding solution for producing fine powders from non-metallic minerals. First developed in the early 20th century and continuously refined, the Raymond mill remains one of the most widely used fine grinding machines across the mineral processing, chemical, and construction industries.
LIMING Raymond mills feature a vertical structure with a set of grinding rollers suspended from a rotating star rack (spider). Centrifugal force presses the rollers against a stationary grinding ring, crushing material through rolling compression. An integrated air classifier separates fine product from coarse returns, ensuring consistent particle size distribution.
| Quick Specifications | |
|---|---|
| Feed Size | ≤15-30 mm |
| Capacity | 0.3-22 t/h (8-176 t/day) |
| Output Fineness | 80-325 mesh (0.18-0.044mm) |
| Max Material Hardness | ≤7 Mohs |
| Max Material Humidity | ≤6% |
| Number of Rollers | 3-6 (model dependent) |
| Motor Power | 15-250 kW |
| Warranty | 12 months |
Raymond mills process a wide range of non-metallic minerals for various industries
Calcium carbonate powder for cement, filler, desulfurization
Fine GCC powder for paper, paint, plastics, and rubber
Refractory materials, glass, ceramics, and agriculture
Oil drilling mud weighting agent, chemical and paint industry
Construction plaster, cement retarder, and wallboard
Cosmetics, paper, ceramics, and paint industries
White fillers, coatings, and decorative terrazzo
Ceramics, glass manufacturing, and abrasives
Drilling mud, foundry sand binder, cat litter
Paper coating, ceramics, refractory, and rubber filler
Over 100 years of continuous development and field experience. Reliable performance with predictable maintenance schedules and widely available spare parts.
Adjustable classifier speed and air flow rate provide precise control over product fineness from 80 to 325 mesh, ensuring consistent quality.
Simple mechanical design with easy access to wearing parts. Grinding rollers and rings are quick to replace, minimizing production downtime.
Negative pressure operation with pulse-jet dust collection minimizes fugitive dust emissions. Meets environmental standards for clean production.
Small floor footprint compared to horizontal grinding mills. Easier integration into existing processing plants with limited space.
Processes over 100 types of non-metallic minerals with Mohs hardness below 7, making it versatile for multiple industries.
| Model | Roller Qty | Roller Dia (mm) | Ring Dia (mm) | Feed (mm) | Fineness (mesh) | Capacity (t/h) | Motor (kW) |
|---|---|---|---|---|---|---|---|
| 3R1410 | 3 | 140 | 405 | ≤15 | 80-325 | 0.3-1.5 | 15 |
| 3R2615 | 3 | 260 | 780 | ≤15 | 80-325 | 1-3 | 18.5 |
| 3R2715 | 3 | 270 | 780 | ≤15 | 80-325 | 1.2-3.5 | 22 |
| 3R3016 | 3 | 300 | 860 | ≤20 | 80-325 | 1.5-4.5 | 30 |
| 4R3016 | 4 | 300 | 860 | ≤20 | 80-325 | 2-6 | 37 |
| 4R3216 | 4 | 320 | 970 | ≤20 | 80-325 | 3-8 | 45 |
| 5R4119 | 5 | 410 | 1200 | ≤25 | 80-325 | 5-12 | 75 |
| 5R4121 | 5 | 410 | 1270 | ≤25 | 80-325 | 6-15 | 90 |
| 5R4125 | 5 | 410 | 1520 | ≤30 | 80-325 | 8-18 | 110 |
| 6R4427 | 6 | 440 | 1600 | ≤30 | 80-325 | 12-22 | 185 |
| 6R4525 | 6 | 450 | 1520 | ≤30 | 80-325 | 14-24 | 200 |
| 6R5527 | 6 | 550 | 1600 | ≤30 | 80-325 | 18-30 | 250 |