Why mill selection starts with the ore
A mill that is too small starves the plant; too large wastes capital and power. Correct sizing comes from ore hardness (Bond work index), feed size from the crushing stage, and the liberation size your recovery method needs — gravity, flotation or leaching each demand a different grind.
Key parameters to define
- Ore type and hardness test data if available.
- Feed size entering the mill and target product fineness.
- Throughput in tonnes per hour at your operating schedule.
- Overflow vs grate discharge for your process stage.
- Liner type and grinding media supply plan.
Typical configuration ranges
| Item | Common options | Indicative range |
|---|---|---|
| Drum size | Diameter × length series | 0.9×1.8 m – 3.2×4.5 m |
| Throughput | By ore and grind target | 1–60 t/h |
| Drive | Edge drive, center drive | 18.5–800 kW |
| Liners | Manganese steel, rubber | By abrasion level |
Ranges are indicative. Mill sizing must follow ore test data, not catalog capacity.
What a quotation should clarify
| Quotation area | Questions to record |
|---|---|
| Ore basis | What ore hardness and feed size is the capacity rated on? |
| Grind | What product fineness (mesh or micron) is guaranteed? |
| Wear | Liner life in months and media consumption per tonne? |
| Foundation | Foundation loads and installation drawings included? |
| Scope | Motor, reducer, lubrication and spares included? |
Related equipment
Coordinated sourcing from Gongyi
- Sourced in Gongyi. Machines are welded, machined and assembled at qualified Gongyi-area partner plants we coordinate — clear specs, no mystery markups.
- Inspected before shipment. Every line is trial-run or inspected at the partner plant before dispatch; you receive video or on-site evidence with the inspection report.
- Spare parts from stock. Wear parts and standard components ship with the machine, with factory stock behind every order.
- 12-month warranty. Core machinery is covered for 12 months, backed by lifetime technical support from our engineers.
Request a sourcing proposal
Send us your raw material, target capacity and destination port. We will reply with a coordinated configuration, sourcing proposal and production schedule.
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