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Ball Mill

Ball Mill

Ball mill, also called grinding mill, ball grinding mill, is the key equipment to grind crushed materials into fine powder 20-75 micrometer. It has grate type and overflow type.

  • ≤25mmFeed Size
  • 18.5-800KWMotor Power
  • 0.62–90 t/hProcessing capacity

What is ball mill?

A ball mill is a grinding machine that also has a mixing effect. The ball mill is the key equipment for crushing ores after it is crushed in the beneficiation plant. Ball mill is filled with a certain number of steel balls in its cylinder as the grinding medium. Ball mills are suitable for grinding various ores and other materials, and are widely used in mineral processing, building materials and chemical industries. They can be divided into dry and wet grinding methods. According to different ore discharge methods, it can be divided into grid type and overflow type. It is widely used in ore dressing production line such as Gold ore, Cooper ore, Magnetite ore, Antimony, Calcite, Kaolin, Mica, Clay, Bentonite etc Ferrou metal or Nonferrous metal.
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How to choose ball mill?

Selecting the types of ball mill is mainly up to capacity. There are many factors that are related to the processing capacity of ball mill, such mineral characteristic, feeding particle size and final size, shape of the lining board, mill speed, medium charge ratio, slurry concentration, as well as the type of classifier and working system etc.

1. Cylinder shape. Short-cylinder with single-bin structure ball mill is mainly used for coarse grinding or primary grinding with high efficiency. The specific configuration of the ball mill should according to the output and working conditions.
Discharge method

2. Discharge type. Overflow type: discharge ore through the hollow shaft. When the ore discharge surface is higher than the slurry surface, the finished product is discharged and the ore is automatically discharged by gravity, thus the overflow ball mill saves energy.
Grate discharge ball mill: the ore is discharged through the grate plate. The grating part can strictly control the minerals’ discharge size that meets the demand, it has a good effect on fine particle grinding.

3. Transmission method. Central transmission ball mill: The driving power of this type of mill is in the center of the fuselage, and the motor realizes the operation of the ball mill through a reducer. During operation, the hollow shaft in the center of the ball mill drives the grinding body to rotate under the drive of the power system.
Edge transmission ball mill: The motor drives the gear on the edge of the barrel through the reducer to drive the barrel.

4. Energy consumption. Choose an energy-saving ball mill or ordinary ball mill according to the capacity of electric power supply and energy consumption limitation.

Get Price List
  • High Quality

    Ball mill is mainly composed of feeding part, discharging part, turning part and driving part. Convenient installation and debugging , easy to operate.

  • Customized Design

    High manganese steel plate liner is more wear-resistant and has a longer service life. Groove-type lining plate to grinding action and ore lifting capacity and decreases energy consumption.

  • Good Performance

    ball mill adopts rolling bearing support instead of sliding bearing support with bearing bush to save energy by 10-20%.

Product features

High processing capacity,obvious continuous operation advantages.

  • gold ball mill
  • ball mill for sale
  • mineral ball mill
  • ball grinding mill

Working principle

Ball mill grinding machine is a kind of horizontal drum-type grinding mill with external gear and double bins. Materials goes evenly through quill shaft in feeding device into the first bin, which has ladder lining or ripple lining with steel balls in different specifications.Steel balls are taken to a certain height by centrifugal force from drum rotation and then fall. Thus it will give a heavy blow to materials, playing a role of grinding. Materials after crushed in the first bin shall enter bin across single-layer diaphragm into the second, which is provided with flat lining with steel balls, to go through further grinding. The ground materials are discharged through the discharging board thus the grinding process is finished.

ball mill working pricinple


Model Cylinder Rotating 
Speed (r/min)
Ball weight
Feeding Size
Discharging Size
Ф900×1800 36-38 1.5 ≤20 0.075-0.89 0.65-2 18.5
Ф900×3000 36 2.7 ≤20 0.075-0.89 1.1-3.5 22
Ф1200×2400 36 3 ≤25 0.075-0.6 1.5-4.8 30
Ф1200×3000 36 3.5 ≤25 0.074-0.4 1.6-5 37
Ф1200×4500 32.4 5 ≤25 0.074-0.4 1.6-5.8 55
Ф1500×3000 29.7 7.5 ≤25 0.074-0.4 2-5 75
Ф1500×4500 27 11 ≤25 0.074-0.4 3-6 110
Ф1500×5700 28 12 ≤25 0.074-0.4 3.5-6 130
Ф1830×3000 25.4 11 ≤25 0.074-0.4 4-10 130
Ф1830×4500 25.4 15 ≤25 0.074-0.4 4.5-12 155
Ф1830×6400 24.1 21 ≤25 0.074-0.4 6.5-15 210
Ф1830×7000 24.1 23 ≤25 0.074-0.4 7.5-17 245
Ф2100×3000 23.7 15 ≤25 0.074-0.4 6.5-36 155
Ф2100×4500 23.7 24 ≤25 0.074-0.4 8-43 245
Ф2100×7000 23.7 26 ≤25 0.074-0.4 12-48 280
Ф2200×4500 21.5 27 ≤25 0.074-0.4 9-45 280
Ф2200×6500 21.7 35 ≤25 0.074-0.4 14-26 380
Ф2200×7000 21.7 35 ≤25 0.074-0.4 15-28 380
Ф2200×7500 21.7 35 ≤25 0.074-0.4 15-30 380
Ф2400×3000 21 23 ≤25 0.074-0.4 7-50 245
Ф2400×4500 21 30 ≤25 0.074-0.4 8.5-60 320
Ф2700×4000 20.7 40 ≤25 0.074-0.4 22-80 380
Ф2700×4500 20.7 48 ≤25 0.074-0.4 26-90 480
Ф3200×4500 18 65 ≤25 0.074-0.4 95-110 630
Ф3600×4500 17 90 ≤25 0.074-0.4 115-170 850

*The output will vary according to different materials, feed particle size and other factors