As is well known that, Indonesia is rich in coal mine mineral resources of the Indonesia coal reserves of 6.7 billion tons, mainly distributed in the western and southern part of Sumatra and Malignant, eastern and southern regions in Papua and Sulawesi also a small amount of the distribution, Indonesia’s coal Almost Ode to exist Tertiary strata.

Therefore the coal grinding industry technology has a greatly increased in recently years. In order to meet the demand of the coal industry, Liming heavy industry designed the 21 roller mill to meet the coal grinding industry. Of course, Liming heavy industry also supply the Coarse Powder Hammer Mill, LM Series Vertical Mill, MTW Series Trapezium Mill, TGM Series Trapezium Mill, YGM Series Suspension Mill, HGM Series Micro Powder Mill, T130X Superfine Grinding Mill, Raymond Mill ,Ball Mill and so on. they are also widely used in the coal grinding process.

The 21 roller mill introduction:

The 21 roller mill works reliable ,easy to maintain ,low costs for operation ,the discharge granularity is adaptable ,according to roller quantity ,there are double-roller and four-roller crushers ,which are widely used to process brittle and flexible materials in cement ,metallurgy ,chemical industry ,power and dip on lines.

21 roller mill of Liming heavy industry have many superiority such as follows:

1.the roller mill and the vertical mill have adjustable partial size

2. the roller mill and the vertical mill have an easy maintenance

3.they have the lowest invest cost

4.theri reliable operation can made the machine work a longer life.