Alloy Steel Rotating Shafts Are Used In Large Industrial Equipment100-7000kg Custom Solutions. Our alloy steel rotating shafts are designed for heavy-duty industrial applications, with weights ranging from 100 kg to 7000 kg. Forged from high-strength materials such as 42CrMo, 4140, or 18CrNiMo7-6, these shafts provide excellent torsional strength, fatigue resistance, and stability under continuous operation.

They are widely used in power transmission systems of large-scale equipment, including wind turbines, port cranes, mining machines, and metallurgical gearboxes. With precision forging, heat treatment, and optional rough or finish machining, each shaft is tailored to meet customer specifications and performance requirements.

Key Features:

• Weight Range: 100–7000 kg

• Materials: Alloy steel grades including 42CrMo, 4140, 18CrNiMo7-6

• Applications: Wind power, heavy equipment, port machinery, metallurgy

• Condition: As forged, rough machined

• Services: OEM customization, drawing-based production, mechanical testing

Advantages:

• Superior load-bearing and rotational performance

• Enhanced fatigue life and dimensional accuracy

• Full traceability and quality inspection (UT, MPI, hardness, etc.)

• Flexible sizing and machining to suit project needs

The steel forgings production flow:

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

Frequently Asked Questions (FAQs)

1. What is the scope of your forging weights?
   Our forged products cover a weight spectrum, spanning from 100 kg to 7000 kg.
2. Do you offer heat treatment and machining services?
   Indeed, we provide comprehensive in - house services. This includes heat treatment, as well as both rough and finish machining.
3. Which industries do you cater to?
   Our supply network reaches across multiple sectors, such as wind energy, heavy equipment, port machinery, transmission systems, and others.
4. What is the production lead time?

• For items with stock available: Approximately 30 days.
• For items without stock: 40 - 45 days.

5. Where is your manufacturing facility situated?
   Our factory is located in Changzhou City, in close proximity to Shanghai. Goods are shipped via Shanghai Port.

Please send us the drawings and technique requirements, we will quote you soon.

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.