Tenfaye ZG42Cr1Mo Half Girth Gear Φ7343mm for Ball Mill and Rotary Kiln Segmented Ring Gear External Gear Ring Cast Steel Girth Gear Normalizing/Tempering UT/MT

Product Description

Product Description

Half girth gear is a critical transmission component used in large ball mills and rotary kilns, usually supplied as segmented ring gears for easier transportation and installation.

Tenfaye supplies custom ZG42CrMo cast steel half girth gears, manufactured strictly according to equipment parameters and working conditions.
Each segment is precision cast, fully machined, and heat treated to ensure stable meshing with the pinion, reliable torque transmission, and long service life under continuous operation.

Our half girth gears are suitable for new equipment manufacturing and replacement of worn girth gears in cement plants, mining mills, and industrial grinding systems.

Applications

• Ball mill transmission system

• Rotary kiln drive system

• Cement plant

• Mining and mineral processing plant

• Industrial grinding mill

Product Parameters

Item	Specification
Product Name	Large Girth Gear / Ring Gear
Material	ZG42Cr1Mo (Alloy Steel)
Outer Diameter	7343 mm
Unit Weight	26 Tons
Structure	Half-ring / Segmented (Easy for transport & installation)
Processing	Sand Casting + Hardening & Tempering + Gear Hobbing
Standard	ISO, ASTM, DIN, JIS
Hardness	HB210-250 or according to requirements
Accuracy Grade	ISO 8 / AGMA 9 or better
Application	Ball Mills, SAG Mills, Rotary Kilns, Granulators

Problems We Solve

Our half girth gears are designed to effectively solve common problems such as:

• Tooth surface wear and pitting during long-term operation

• Gear misalignment or unstable meshing

• Cracks caused by casting stress or improper heat treatment

• Short service life under heavy load conditions

We customize steel casting parts according to customers' drawings. If you don't have drawings, you can contact us.

Please provide:

• Equipment type (ball mill or rotary kiln)

• Capacity or model

• Working condition

Our engineering team will assist with technical confirmation and manufacturing feasibility.

Company Profile

Huixian Tengfei Manchinery Manufacturing Co,.  Ltd

Tenfaye ,founded in 2006, is located in Xinxiang City, Henan Province, which is a well-known national casting hub.  Spanning an area of 100,000 square meters, our company employs over 400 professionas.

As a national high-tech enterprise, we specialize in the research, manufacturing, and servicing of castings made from carbon steel, manganese steel, low-alloy steel, and stainless steel. Our expertise lies in producing castings that weigh below 150 tons.

We are in a good position not only to supply you with high quality spare parts, but also the excellent after sales service. Well-trained engineers will offer you any technical support. Could you show me a drawing or send me a picture with dimensions, weight and other product information.Upon receipt of your feedback, we will update you with more relevant proposals and working videos for your options.

 

Machining Equipment

With state-of-the-art facilities, including a 120-ton refining furnace, 30 and 80-ton electric arc furnaces, φ8m vertical lathes, and φ10m gear hobbing machines, Tenfaye is equipped with over 100 sets of high-precision equipment.
This enables us to deliver exceptional quality and precision. The annual production capacity is 80,000 tons, of which the one-time organization of molten steel can reach 300 tons, and the maximum weight of a single product is 150 tons.

Certifications

Tenfaye has achieved ISO9001 international quality management system certification. We take pride in our 2 scientific and technological achievements, recognized by Henan Province, and hold an impressive portfolio of 20 utility model patents. Our dedication to environmental responsibility is evident through our classification as a Class B environmental performance-rated enterprise. The operating rate of Tenfaye has reached over 95%.

FAQ

Q: Does Tenfaye cast steel provide customized services?
A: Yes, Tenfaye cast steel can be customized according to customer drawings and technical requirements.

Q: Do you have production experience?
A: Tenfaye has 20 years of production experience, and engineers are highly skilled. We can produce cast steel, cast iron, forgings, etc.

Q: When is the delivery time of the product?
A: Different products have different production cycles. After the customer pays, the factory will immediately start 24-hour production, and 2-3 groups of workers will take turns to rest to deliver the product as soon as possible.

Q: Do you provide quality control and inspection documents?
A: Yes, we have strict quality control standards. Customers can come to the factory to inspect the goods.

Q:What if I only have product images and specifications but no drawings?
A:Please show me pictures and tell me the product name and the equipment it's used in.

Q:Do you manufacture standard cast steel parts?
A:We customize cast steel parts according to customer drawings.