ISO9001, ISO14001 certified 100kg to 7000kgs Forged Gear Steels for Industry Gearboxes

42CrMo , 18CrNiMo7-6 Steel Free Forging for Industry Gearboxes 100-7000kg Custom Solutions. Our heavy-duty industrial gearbox forgings are custom-made from 42CrMo and 18CrNiMo7-6 alloy steels using free forging. Ranging from 100kg to 7000kg, they offer superior strength, wear resistance, and fatigue life for demanding gearbox applications. We provide tailored solutions to fit your exact requirements.

Key Features

• Optimized Alloy Steels:
  • 42CrMo: High strength, toughness, and wear resistance, ideal for shafts and larger gears.
  • 18CrNiMo7-6: Premium case-hardening steel for exceptional core strength and surface hardness, perfect for critical gears.
• Superior Forging (Free Forging): Enhances internal grain flow and mechanical properties for maximum durability.
• Heavy-Duty Capacity: Handles forgings from 100kg to 7000kg for diverse gearbox sizes.
• Custom Engineered: Precisely manufactured to your specific design and performance needs.
• High Durability: Excellent wear and fatigue resistance ensures long gearbox lifespan.

Application Areas

These robust alloy steel forgings are essential for industrial gearboxes in:

• Wind Energy: Main gearbox components.
• Heavy Machinery: Gearboxes for mining, construction, and large agricultural equipment.
• Power Generation: Reducers for turbines and generators.
• Marine & Shipbuilding: Ship propulsion and deck machinery gearboxes.
• Cement & Mining: Drive components for crushers and mills.
• Steel Mills: Gearboxes for rolling mills and processing lines.

The steel forgings production flow:

Raw material steel ingot into warehouse(test the chemical composition) → Cutting→ Heating(Furnace temperature test) → Heat treatment after forging(Furnace temperature test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal dimension, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.

Frequently Asked Questions (FAQs)

• Forging Capacity: We forge parts from 100 kg to 7000 kg, handling both medium and heavy-duty needs.
• Integrated Services: We provide complete in-house heat treatment and both rough and finish machining, streamlining your supply chain.
• Industry Expertise: Our forgings power critical applications in wind energy, heavy equipment, port machinery, and advanced transmission systems.
• Lead Times: Expect around 30 days with stock, or 40-45 days for custom production.
• Strategic Location: Our Changzhou factory, near Shanghai Port, ensures efficient global shipping.

Request a Quote

Ready for a robust solution? Send your technical drawings and detailed requirements. Our expert engineers will swiftly analyze your needs and deliver a tailored quotation and professional solution.

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.