The ball mill is the key equipment for conducting pulverizing operation after materials are crushed which is widely used in cement, silicate products, new building  materials, fireproofing, chemical  industry,  mineral separation for ferrous metal and non-ferrous metal, glass-ceramic and other industries, is used for crushing and grinding every kind of ore or other grindable materials. In general, it is better to use overflow ball mill when the ore grinding fineness is fine and is better to use grate ball mill when it is coarse. (It is able toprevent adverse effect on sorting from heavily-milled materials）
Ball/rod mills are suitable for：
Ball/rod mills for use of metallic media Single stage fine grinding
Regrinding
Second stage in two stage grinding circuits

The batch ball mill is of horizontal, cylindrical, and tubular structure. It comes with two cabins and is a grate ball mill. The materials are evenly fed through the charging device to the first warehouse where there are step scales boards, corrugated scale boards, and different specifications of steel balls. When the cylinder rotates, the centrifugal force produced causes the steel balls to impact and grind the materials in the ball mill. The materials are then lead to the second cabin for further milling until they turn into powders and are discharged from the outlet.

The batch ball mill is composed of feeding part, discharging part, rotating part, transmission part (reducer, pinion, motor, electric control), and other main parts. The hollow shaft is made of steel casting with a removable lining. The rotary gear is processed by casting hobbing. The cylinder is embedded with a wear-resistant lining plate, which has good wear resistance. The batch mill runs smoothly and works reliably.

Advantages

Main benefits of ball/rod mills:
Automatic operation saves power
Software to suit the most complicated circuits and complex ores
Operation：
Ball mills operate either in open or closed circuit.
Open circuit operation is best utilized when:
Another stage of grinding follows the mill
Reduction ratio is small
Feed material is already fi ne and one pass through the m ill produces the desired results
Product size control is not critical and oversize material can be tolerated in the product.
Where size control of the final product is important, closed circuit grinding is the most efficient method of operation. The production of a higher quality product at a lower cost justifies the additional capital investmen.
Common wet grinding flow sheets include:
 Open circuit
 Closed circuit with hydro cyclones
 Closed circuit with vibrating screens
 Two stage variations of the above utilizing two mills in series
High technical support of SBM ball mill
Finite element structure optimization analysis

3D design

Overflow discharge ball mill
For the overflow ball mill: its model varies from Ф1 .5×3.0 to Ф
5.6×8.5m ,the effective volume varies from 7.5 to 194.3 m ³ to meet different needs
For the gate ball mill: its model varies from Ф1 .2×2.4 to Ф
4×86.7m ,the effective volume varies from 2.2 to 77.95 m ³ to meet different needs
For the rod mill: its model varies from Ф1 .5×3 .0 to Ф3.5×5.8m ,the
effective volume varies from 4 .6 to 60.7 m ³ to meet different needs For the (semi) autogenous grinding mill(AG/SAG) : its model varies from Ф2.4×1 .2 to Ф6.4×3.3m ,the effective volume varies from 5.6  to 107 m ³ to meet different needs.
Gear machine plant

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