On the afternoon of November 17, three sets of vertical mill rocker arm assemblies left the Great Wall Steel Casting (CHAENG) to Nanjing. The customized rocker arms for the Nanjing customer include the upper rocker arms and the lower rocker arms. 

Upper rocker arm

Lower rocker arm

The rocker arm is one of the main components of the vertical roller mill. CHAENG has mature technology in the rocker arm production. The rocker arm produced by CHAENG has good wear resistance, strong fracture resistance, and high cost performance. 

Process advantages of CHAENG vertical mill rocker arm:

1. CHAENG customizes the rocker arm according to the user's drawings, so that it is well matched with the user's vertical roller mill.

2. Level-2 flaw detection to ensure quality.

3. Use arc gouging and shot blasting to guarantee the appearance quality.

4. Adopt optimized chemical matching high-quality alloy steel ZG270-500, ZG30SiMnMo to ensure the wear resistance and fracture resistance of the rocker arm. 

5. Before leaving the factory, CHAENG carries out non-destructive testing on the stress side of the rocker arm to avoid the defective products.