Ball Mill

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Product Details

High-Performance Industrial Ball Mill Grinder for Mineral Processing

The Ball Mill Grinder is one of the most essential machines in hard rock mineral processing. Widely recognized as a high-performance Ball Mill for Gold Mining and primary tin processing, this Hard Rock Ball Mill is engineered to grind crushed ore into fine particles for further mineral separation.

Our Industrial Ball Mill is specifically designed to achieve efficient mineral liberation while preventing excessive over-grinding. This ensures that valuable heavy minerals remain recoverable in downstream gravity separation equipment such as shaking tables, centrifugal concentrators, and spiral classifiers.

Built for durability and continuous operation, this highly efficient Ball Mill for Mineral Processing provides a stable and uniform feed size. It is widely considered the ideal Ball Mill for Gravity Separation circuits, helping small to medium mining plants maximize their recovery rates.

Industrial Ball Mill Grinder for gold mining plant

Advantages of Our Industrial Ball Mill

High Grinding Efficiency: Optimized steel ball motion ensures efficient crushing and grinding of hard rock ores, preventing mineral loss.
Stable Operation: Heavy-duty bearings and precision engineering provide stable long-term operation even in harsh mining environments.
Lower Operating Costs: Durable manganese steel liners and optimized energy consumption significantly reduce OPEX for your gravity separation plant.
Customizable Design: We provide customized ball mill configurations (wet or dry grinding) depending on ore hardness, plant capacity, and specific grinding requirements.

How a Ball Mill Works (Working Principle)

Feeding: Crushed ore (ideally <25mm, pre-crushed by a Jaw Crusher) enters the rotating cylinder evenly through the hollow journal.
Impact & Attrition: As the heavy-duty cylinder rotates, the internal steel balls are lifted by centrifugal force and drop, crushing the hard rock by impact. Further rotation causes the balls to roll and slide, grinding the ore through attrition.
Controlled Discharge: The ground slurry is continuously discharged. In a grate-type ball mill, the slurry passes through a slotted grate, ensuring coarse, heavy minerals exit promptly for immediate recovery in the gravity circuit.

Ball Mill grinding process at mining site

Ball Mill discharging material in hard rock ball mill plant

Applications of Ball Mill in Mineral Processing

Our hard rock ball mill is highly versatile and is a crucial component in various mineral processing scenarios:

Gold ore grinding before gravity separation or flotation
Tin (cassiterite) ore grinding to prevent over-grinding
Tungsten (wolframite) mineral processing
Chromite beneficiation
Hard rock mining operations of all scales
Small and medium mining plants requiring reliable comminution

Technical Specifications

Below are the standard technical specifications of our Industrial Ball Mill Grinder. Custom ball mill capacities and dimensions can be designed based on your specific project requirements.

Model	Max Feed Size (mm)	Discharge Size (mm)	Ball Mill Capacity (t/h)	Motor Power (kW)	Weight (t)
Ф900×1800	≤ 20	0.075 - 0.89	0.65 - 2	18.5	5.5
Ф1200×2400	≤ 25	0.075 - 0.89	1.5 - 4.8	45	12.5
Ф1500×3000	≤ 25	0.074 - 0.4	2 - 5	90	22
Ф2100×3000	≤ 25	0.074 - 0.4	14 - 36	245	50
Ф2700×3600	≤ 25	0.074 - 0.4	30 - 90	400	115

Frequently Asked Questions (FAQ)

Q1: What is the difference between a grate ball mill and an overflow ball mill?

A: The main difference lies in how they discharge material. If you are recovering heavy, brittle minerals like tin or tungsten, we highly recommend a grate ball mill. It uses a grate plate to force material out quickly, preventing over-grinding. An overflow ball mill discharges naturally when the slurry reaches the trunnion level, making it better for finer grinding before flotation.

Q2: What is the best feed size for this ball mill for gold mining?

A: To maximize the efficiency and throughput of your gold mining plant, the feed size should generally be under 25mm. We recommend using a high-quality secondary crusher upstream to achieve this optimal size.

Q3: Can this ball mill recover "free gold" directly?

A: The ball mill itself only liberates the gold from the quartz rock. However, you can install a mineral jig or a Gold Centrifugal Concentrator right at the ball mill's discharge to immediately capture the coarse "free gold" before it enters the classifier.

Ball Mill equipment delivery to mining plant

Installed Ball Mill at mineral processing plant

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