The ball mill is mainly composed of a cylinder body, inlet and outlet end covers, a main bearing, inlet and outlet bushings, girth gear, pinion gear and motors, etc.

The ball mill head is one of the key parts of the ball mill. Its structure is relatively complex, the manufacturing cycle is long, and the precision of the processing and assembly required is high. Therefore, it is necessary to fully consider the manufacturability when preparing the process route.

CHAENG customizes the processing technology according to customer drawings and requirements, and uses high-quality steel to ensure the quality and service life of the head of the ball mill. CHAENG has provided steel casting parts such as ball mill head, trunnion, girth gear and pinion for many cement factories and mining enterprises at home and abroad, and has been well received by customers.

Great Wall Machinery’s ball mills are exported to more than 50 countries and regions, and the matched trunnion and end cover are all manufactured by us. 

Process advantages:

The first step: Simulation and modeling

Before casting, numerically simulate the casting process by CAE software to analyze the molding process, predict and optimize quality of ball mill head.

The second step: pouring and heat treatment

Sample the hot metal and perform the spectral analysis. After qualification, the pouring shall be carried out according to the principle of "low temperature and quick casting", and the pouring time and temperature shall be recorded.

The third step: Flaw detection, finishing

Finally, cut the pouring riser and burr etc. CHAENG has professional mechanical polishing teams and large-scale blasting apparatus, which can effectively improve the appearance quality of ball mill cover, to meet customer’s requirements on surface finish. Moreover CHAENG take use of advanced detection equipment for non-destructive testing to ensure the internal quality.