The Daswell Powder Ring Roller Mill is a high-performance grinding solution designed for producing fine and ultra-fine mineral powders with exceptional efficiency and consistent quality. Suitable for processing non-metallic minerals with Mohs hardness up to 5, feed sizes of ≤10 mm, and moisture content of ≤3%, this advanced grinding system delivers precise particle size control and high production capacity.Featuring multi-layer grinding rollers, a built-in air classifier, and an energy-efficient vertical design, the Ring Roller Mill is ideal for manufacturing calcium carbonate, limestone, marble, dolomite, barite, kaolin, talc, gypsum, and other industrial mineral powders.
The Ring Roller Mill uses multiple grinding rollers working against a grinding ring to generate strong rolling pressure, producing high-quality micro powders with excellent particle size consistency.
High grinding efficiency
Uniform particle size distribution
Stable continuous operation
Increased production capacity
An integrated air classifier enables precise control of powder fineness without changing grinding components.
DR-21: 3.5–45 μm
DR-28: 5–50 μm
DR-34: 5–50 μm
The classifier continuously separates qualified fine powder while returning oversized particles for further grinding
In a complete mineral grinding plant, the production process typically follows:
Crushing → Grinding → Classification → Dust Collection → Packing
The Ring Roller Mill performs the critical grinding stage by:
Reducing material to micron-level powder
Controlling final particle size
Maintaining stable production throughput
Supporting continuous industrial operation
Because grinding directly influences powder quality and downstream applications, the Ring Roller Mill plays a central role in achieving consistent product performance.
| Material | Mohs Hardness |
|---|---|
| Calcium Carbonate | ~3 |
| Limestone | ~3 |
| Dolomite | 3.5–4 |
| Barite | 3–3.5 |
| Talc | ~1 |
| Kaolin | 2–2.5 |
| Gypsum | ~2 |
| Parameter | DR-21 | DR-28 | DR-34 |
|---|---|---|---|
| Roller Quantity | 21 | 28 | 34 |
| Feed Size | ≤10 mm | ≤10 mm | ≤10 mm |
| Feed Moisture | ≤3% | ≤3% | ≤3% |
| Product Fineness | 3.5–45 μm | 5–50 μm | 5–50 μm |
| Production Capacity | 500–4,000 kg/h | 800–7,000 kg/h | 1,700–12,000 kg/h |
| Main Motor Power | 75 kW | 132 kW | 185–200 kW |
| Classifier Power | 18.5–22 kW | 30 kW | 55–75 kW |
| Blower Power | 45–55 kW | 55–75 kW | 132 kW |
| Feeder Power | 1.5–3 kW | 1.5–3 kW | 3 kW |
| Discharge Screw Power | 3 kW | 3 kW | 3–6 kW |
| Compressed Air Consumption | 1.5–23 m³ | 23 m³ | 23 m³ |
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The Daswell Powder Ring Roller Mill is a high-performance grinding solution designed for producing fine and ultra-fine mineral powders with exceptional efficiency and consistent quality. Suitable for processing non-metallic minerals with Mohs hardness up to 5, feed sizes of ≤10 mm, and moisture content of ≤3%, this advanced grinding system delivers precise particle size control and high production capacity.Featuring multi-layer grinding rollers, a built-in air classifier, and an energy-efficient vertical design, the Ring Roller Mill is ideal for manufacturing calcium carbonate, limestone, marble, dolomite, barite, kaolin, talc, gypsum, and other industrial mineral powders.
The Ring Roller Mill uses multiple grinding rollers working against a grinding ring to generate strong rolling pressure, producing high-quality micro powders with excellent particle size consistency.
High grinding efficiency
Uniform particle size distribution
Stable continuous operation
Increased production capacity
An integrated air classifier enables precise control of powder fineness without changing grinding components.
DR-21: 3.5–45 μm
DR-28: 5–50 μm
DR-34: 5–50 μm
The classifier continuously separates qualified fine powder while returning oversized particles for further grinding
In a complete mineral grinding plant, the production process typically follows:
Crushing → Grinding → Classification → Dust Collection → Packing
The Ring Roller Mill performs the critical grinding stage by:
Reducing material to micron-level powder
Controlling final particle size
Maintaining stable production throughput
Supporting continuous industrial operation
Because grinding directly influences powder quality and downstream applications, the Ring Roller Mill plays a central role in achieving consistent product performance.
| Material | Mohs Hardness |
|---|---|
| Calcium Carbonate | ~3 |
| Limestone | ~3 |
| Dolomite | 3.5–4 |
| Barite | 3–3.5 |
| Talc | ~1 |
| Kaolin | 2–2.5 |
| Gypsum | ~2 |
| Parameter | DR-21 | DR-28 | DR-34 |
|---|---|---|---|
| Roller Quantity | 21 | 28 | 34 |
| Feed Size | ≤10 mm | ≤10 mm | ≤10 mm |
| Feed Moisture | ≤3% | ≤3% | ≤3% |
| Product Fineness | 3.5–45 μm | 5–50 μm | 5–50 μm |
| Production Capacity | 500–4,000 kg/h | 800–7,000 kg/h | 1,700–12,000 kg/h |
| Main Motor Power | 75 kW | 132 kW | 185–200 kW |
| Classifier Power | 18.5–22 kW | 30 kW | 55–75 kW |
| Blower Power | 45–55 kW | 55–75 kW | 132 kW |
| Feeder Power | 1.5–3 kW | 1.5–3 kW | 3 kW |
| Discharge Screw Power | 3 kW | 3 kW | 3–6 kW |
| Compressed Air Consumption | 1.5–23 m³ | 23 m³ | 23 m³ |
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