The material that meets the fineness requirements is passed through the analysis machine, and the material that fails to meet the requirements is returned to the grinding chamber to continue grinding. After passing through the screening, it is considered qualified. Generally speaking, the carbon black production equipment produces a carbon black mesh number of 1250. It is very convenient to adjust the number of meshes. This is a unique feature of large carbon black ultrafine mill manufacturers.
The carbon black vertical roller mill capacity produced by large-scale carbon black vertical roller mill manufacturers is usually 1.5 times higher than that produced by other small factories. 
This is shown by data in the past 5 years, and can produce more fine powder , And the service life is about four times that of ordinary equipment. Not only that, but it also consumes less power than its small manufacturers, and because there is no blade inside, it is not easy to cause failures. Even small failures can be repaired within a few minutes, which is also very convenient.