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Girth gear

CHAENG can offer high-quality girth gears for ball mills, rotary dryers, and rotary kilns according to users' drawings and requirements. The girth gear drives the entire tube body to run for a long time. Therefore, in actual production, the quality requirement of the girth gear is high.

Our company has advanced casting, machining, and testing equipment, and sets up a strict quality management system to control every step of the manufacturing process and ensure the high quality of girth gears.


Weight> 1 Ton

MaterialCast steel ZG45, ZG42CrMo, etc

ApplicationRotary kiln, rotary dryer, ball mill, etc

CustomizableYes, according to customer's drawings

Our Advantages

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 1. Use CAE software to simulate the filling and solidification process of castings, so as to optimize the process. 

 2. Professional heat treatment process to improve the hardness, wear resistance and impact resistance of the girth gear.

 3. Advanced machining equipment and technology to ensure the dimensional accuracy.

 4. Sandblasting and shot blasting equipment effectively improves surface quality.

 5. A scientific production management system to ensure the product quality and delivery time required by customers.

 6. Complete inspection system to ensure quality: chemical composition, mechanical property, dimensional check, ultrasonic testing (UT), magnetic particle testing (MT), penetrant test (PT), etc.

Production Process

  • Simulation & analysis

    Simulation & analysis

  • Wood pattern

    Wood pattern

  • Sand mould

    Sand mould

  • Smelting


  • Molten steel test

    Molten steel test

  • Pouring


  • Sand cleaning

    Sand cleaning

  • Heat treatment

    Heat treatment

  • Finishing


  • Machining


  • Non-destructive testing

    Non-destructive testing

  • Packaging & delivery

    Packaging & delivery

Customer cases

CHAENG girth gears with excellent product quality are not only sold throughout China, and also have been successfully exported to foreign markets.

Classic examples:

CHAENG girth gears are applied to the Xinjiang Tianshan Group, Henan Meng Group, and other well-known domestic and foreign cement enterprises, for the normal operation of ball mill and rotary kiln.

CHAENG customized for the Turkish customers a large girth gear with diameter of 7.3 meters and made up of GS34CrMo4 material, and received customer's high praise.

 cast steel girth gears

girth gears for ball mill & rotary kiln

large girth gars manufactured by CHAENG

CHAENG large girth gear

Get a Quote

Contact Us

E-mail: contact@chaeng.co

Phone: +86 15290747879


Wechat: +15290747879

Office Add: Mengzhuang Town, Huixian City, Henan Province, China