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What is a ball mill?
A ball mill is a key industrial grinding machine used to reduce crushed materials (≤25 mm) into fine powder up to 200 mesh.
Compared with other grinding equipment, ball mills provide high capacity, stable performance and strong adaptability for continuous industrial production.
Fineness: 0.074mm–0.89mm
Capacity: 1.1 t/h–615 t/h
Energy saving: 15–20% lower power consumption
Applications of ball mill
Ball mill is widely used in mining and industrial grinding for processing a wide range of ores and raw materials.
It is commonly applied in gold, copper and iron ore processing plants, as well as cement production and mineral grinding systems.
Typical materials include:
- Gold ore / copper ore / iron ore
- Limestone / quartz / feldspar
- Cement clinker
- Coal and industrial minerals
Ball mill types for different grinding needs
1. By grinding method
- Dry ball mill: Used for dry grinding of hard materials such as quartz, silica sand and cement clinker.
- Wet ball mill: Used for grinding materials into slurry, usually with a pulp concentration of 60–70%. Widely used in mineral processing.
Dry vs wet ball mill: Grinding with water is wet ball milling; without water is dry ball milling.
2. By discharge structure
- Overflow ball mill: Produces finer grinding results and is suitable for the second stage in a two-stage grinding process. The feed size is generally less than 0.2 mm. Its output is about 15% lower than that of a grid type ball mill of the same size and it also uses less grinding media.
- Grid ball mill: Suitable for situations where the product particle size is 0.2 mm–0.3 mm and needs to be uniform. High efficiency and fast discharge, suitable for primary grinding stage.
Why FTM Machinery ball mill?
We don't just supply ball mills — we help lower your cost per ton.
1. Power system: 20% energy saving
- Innovative bearings: Dual-row roller bearings reduce friction and cut power consumption by 15–20%.
- Dry oil lubrication: Dry oil lubrication system reduces lubricant use and extends gear service life.
2. Wear-resistant technology: 30% longer life
Multi-material liners:
- High-manganese steel: Best for high-impact hard rock (gold/copper).
- Rubber liners: 50% lighter, lower noise, ideal for wet grinding.
- Ceramic Liners: 100% iron-free for lithium and graphite.
3. Intelligent feeding & discharge
- Spiral forced feeding: Increases feed volume by 10% and prevents material backflow.
- Discharge flexibility: Available in grid type (rapid discharge, no over-grinding) and overflow type (higher fineness).
4. Grinding media & customization
We provide steel balls, ceramic balls and high-chrome balls for different grinding requirements. The whole ball mill system can also be customized according to project needs. Get Ball Mill Price Now
| Model | Ball load(t) | Feeding size(mm) | Discharging size(mm) | Capacity(t/h) | Motor power(kw) | Total weight(t) |
| Ф900×3000 | 2.7 | <20 | 0.075-0.89 | 1.1-3.5 | 22 | 6.98 |
| Ф1830×4500 | 15 | <25 | 0.074-0.4 | 4.5-12 | 155 | 38 |
| Ф2700×4500 | 48 | <25 | 0.074-0.4 | 26-90 | 480 | 102 |
| Ф4000×5000 | 121 | <25 | 0.074-0.4 | 45-208 | 1500 | 230 |
| Ф5500×8500 | 338 | <25 | 0.074-0.4 | Up to 615 | 4500 | 525 |
Zambia gold processing plant with our ball mill
This customer operates a gold processing plant in Zambia and needed a reliable grinding solution for gold ore to improve mineral liberation while maintaining stable throughput.
We supplied two 2700×4500 ball mills with optimized grinding media design and complete installation support.
Project results:
- Processing capacity reached 100 T/H
- Grinding efficiency increased by 18%
- Energy consumption reduced by 15%
- Equipment has operated stably for years
Ball mill working principle and structure
How does a ball mill work?
After material enters the mill, the rotating cylinder drives the steel balls to rise and fall continuously. Materials are crushed first by impact force and then finely ground through friction and rolling action until discharged.
Ball mill main parts
A ball mill primarily consists of several important parts: the cylinder, grinding media, drive system, feed and discharge ports, bearings and liners.
1. Cylinder
The cylinder is the main working part of the ball mill, where the grinding process occurs. It is a cylindrical structure usually made of steel plates. The interior of the cylinder is lined with liners to protect its inner walls.
2. Grinding media
Grinding media, typically steel balls or ceramic balls, is used to grind the material. The type and size of these balls affect grinding efficiency. Choosing the appropriate ball type, size, and ratio of large, medium, and small balls should be based on the material being ground.
3. Liners
Liners are installed inside the cylinder to protect it from wear and to help the grinding media move. They can be made from materials like alumina ceramics, high-manganese steel, rubber, quartz, SILEX, or special materials. For grinding hard minerals, iron-free designs are often used.
4. Feed and discharge ports
The feed port is at one end of the cylinder and is equipped with a feed screw to increase the feed volume. The discharge port at the other end releases the ground material, often equipped with a grate or overflow device to control particle size.
5. Bearings
Bearings support the rotating cylinder. Rolling bearings are used instead of traditional sliding bearings, reducing energy consumption by 15%–20%. Small ball mills use anti-friction cylindrical roller bearings, while large ball mills use trunnion and hydrostatic bearings.
Ball mill price advantage
Factory-direct ball mill prices with lower cost, faster delivery and reliable global support. Get Factory Price Quote
Why buyers choose us?
- Lower ball mill price: Save more with factory-direct prices.
- Fast delivery: Standard models available for faster shipment.
- 40+ years experience: Proven manufacturing experience and stable quality.
- Exported to 100+ countries: Trusted by customers worldwide.
- Complete after-sales support: Installation, spare parts and technical support included.
