The capacity of a three-roll mill depends on several factors, including:
1. Roll Size (Diameter & Length) – Larger rolls can process more material per pass.
– Common sizes: Lab-scale (2.5″–6″ diameter), production-scale (8″–14″ diameter).
– Example: A 6″ x 12″ mill may process 5–50 kg/h, while a 10″ x 20″ mill may handle 100–500 kg/h.
2. Material Viscosity – Thicker pastes (e.g., inks, paints, cosmetics) require slower processing than low-viscosity fluids.
3. Gap Settings – Finer particle dispersion requires tighter gaps, reducing throughput.
4. Roll Speed & Friction Ratio – Higher speeds increase capacity but may affect dispersion quality.
5. Batch vs. Continuous Operation – Some mills are designed for recirculation, increasing effective capacity.
Typical Capacities (Approximate)
| Roll Size (Dia x Length) | Capacity Range* |
|————————–|—————-|
| 2.5″ x 5″ (Lab) | 0.1–5 kg/h |
| 6″ x 12″ | 10–50 kg/h |
| 8″ x 16″ | 50–200 kg/h |
| 10″ x 20″ | 100–500 kg/h |
| Larger industrial mills | Up to 1000+ kg/h |
*Varies based on material and processing requirements.
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