In recent years, the industries of cement, concrete and other building materials gradually improved their production standard, paying more attention to high efficiency, high quality, and low cost. Low cost is mainly from two aspects: firstly, for the vertical roller mill systems, equipment investment and site construction investment must be low; secondly, the wear parts should have high wear resistance to decrease maintenance cost.

As the main parts of the vertical roller mill, grinding roller always suffers serious abrasion caused by complex materials often containing some hard impurities, such as quartz, iron and so on. That will make the gap between the grinding roller and the grinding table become bigger and bigger, so that operation efficiency of vertical roller mill will be decreased, energy consumption will be increased, and then production cost rises.

So how to reduce the wear of the grinding roller, thereby to improve the production efficiency and reduce the production cost? CHAENG (Xinxiang Great Wall Steel Casting Co., Ltd) researched and developed grinding roller shell with high wear resistant performance and long service life. The grinding roller shell is made of alloy steel, and good to solve the wear problem of vertical roller mill grinding roller.

Vertical roller mill shell is like a piece of cloth for vertical roller mill grinding roller. Comparing with the high cost of grinding roller, the grinding roller shell is much cheaper, and by using the latest production technology of cast steel, enhance the wear resistance of CHAENG grinding roller shell is enhanced greatly.
CHAENG grinding roller shell for vertical roller mill has the following advantages:

1. Use ZG30Mn material with high hardness and good wear resistance;
2. Professional testing equipment for quality assurance;
3. Can be turned out of the vertical roller mill for maintenance through the rocker arm;
4. Smooth surface conducive to improving grinding efficiency;
5. High hardness, good anti-crack performance.
6. Adopt arc gauze to perform finishing work;
7. Conduct the flaw detection on the forced surface to ensure the strong stress capacity and safe operation. 　　

Grinding roller shell as a new type parts matching with the grinding roller, fundamentally solves the wear problems of grinding roller, which is an important step for enterprises to reduce cost.