Heavy Duty Forged Drive Shaft 42CrMo 42CrMo4 Transmission Shaft

Heavy-Duty Forged Gear Shafts – 42CrMo ,42CrMo4, 18CrNiMo7-6 for Transmission Shaft. Our heavy-duty forged gear shafts are engineered for high-load transmission systems, utilizing premium materials such as 42CrMo, 42CrMo4, and 18CrNiMo7-6. These alloys offer outstanding toughness, fatigue strength, and heat treatment response, making them ideal for demanding industrial applications.

Each shaft is forged to refine grain structure, improve internal quality, and ensure superior mechanical performance. With precision machining, these shafts are well-suited for use in wind turbine gearboxes, industrial drives, mining equipment, and other power transmission assemblies requiring reliable torque transfer.

Key Features:

• Materials: 42CrMo, 42CrMo4, 18CrNiMo7-6

• Process: Precision forging + Rough machining + Heat treatment

• Condition: As forged, normalized & tempered

• Application: Gearboxes, transmission shafts, wind power, heavy machinery

• Customization: Dimensions, splines, keyways, and profiles per drawing

• Inspection: UT, MPI, hardness, and mechanical property testing available

Advantages:

• High strength and torsional resistance

• Long fatigue life under cyclic loading

• Excellent machinability and surface finish

• OEM/ODM services supported

Process flow:

raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.

Competitive advantages:

Purchase raw materials from certified and reputable steel producers

Full control of forging and heat treatment processes

Dimensions, forging methods, inspection levels can be flexibly customized

Over 25 years of professional experience in drive shaft forging processing

Strong quality assurance and short delivery time for global projects

Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.

About CHANGZHOU TIANGONG 

We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet our customers’ requirements. 

Our customers and partner value our products and services for 2 reasons: excellence and reliability.

Key figures 

A. Over 30 years professional free forging manufacturing experience

B. The company covers an area of 71,000 square meters

C. The construction area of the production workshop is 12,000 square meters

D. Total number of employees of 158

E. 28 engineering and technical personnel 

F. 59 skilled workers 

G. Annual production capacity is 38,000 tons

H. Steel throughput can reach 56,000 tons

Efficient and reliable solutions for customers

Industrial sector application

We design and manufacture forged parts for all industrial areas applying our experience and unique professionalism and taking the specific requirements of the markets into account. This has led us to become a forging industry leader in all industrial segments and collaborating with leading companies.

A. Wind power generation

B. Port Heavy Machinery

C. Mining

D. Ship Building

E. Chemical industrial

F. Oil industrial

G. Metallurgical industry 

H. Hydraulic industry 

I. Other high-end industrial equipment, gearbox body, parts and etc.

Customized solutions 

Modular processes allow us to engineer a solution for almost every industrial application requiring free forged parts. Our modularity means flexibility, a wide range of options, faster delivery, and most important of all, competitiveness.

All our products and production process have been designed to assure excellent, reliable and long lasting unique mechanical performances, resulting in reduced operating costs and long life.

With a wide range of products and a significant experience gained in most industrial applications, we can also provide complete engineering recommendation for customers.