1. Wooden pattern Production

2. Molding

3. Pouring

4. First cleaning

5. Heat treatment – grinding (inspection)

6. Rough machining (inspection)-finishing machining (inspection)

7. Packing-delivering

-- Before casting, CHAENG numerically simulates the casting process by means of CAE software to analyze the molding process, predict and optimize the product quality.

-- Base on the requirements of customers, CHAENG selects appropriate wooden mold for modeling design.

Strictly according to the process procedures to produce high-quality girth gear: wood mold - modelling - pouring - heat preservation - out of the pit, sand cleaning - heat treatment - roughing, finishing - packing and delivery. 

-- We use advanced detection equipment for non-destructive testing to ensure the quality. CHAENG steel castings can meet level-two flaw detection standards.

1. Adopt special heat treatment technology to improve the structure optimization, the hardness, and enhance the wear-resistant and anti-impacting performances.

2. Adopts high strength steel materials.

3. Optimize girth gear based on the operation characteristics of the rotary kiln and ball mill, to ensure the stability of the girth gear during the long time operation and extend its service life.

4. CHAENG has large production capability in steel castings, so we can provide girth gear with short cast period and large amount.