7ton Forged Powdered Metal Gears High Load Industrial Die Forging Drive Units

The Alloy Steel Forged Gear for High Load Industrial Drive Units is engineered for demanding applications that require exceptional mechanical strength, wear resistance, and operational reliability. Manufactured from premium alloy steels such as 42CrMo4, 18CrNiMo7-6, or custom grades, each gear is forged with a high reduction ratio to refine internal grain structure and improve load-bearing performance.

Designed for heavy-duty gearboxes in mining, metallurgy, material handling, and cement production, these forged gears are capable of withstanding continuous torque, dynamic impact, and extreme working conditions. Depending on application requirements, surface hardening processes such as carburizing or induction hardening are applied to enhance tooth durability without compromising the ductility of the gear core.

Precision machining and advanced gear measurement ensure tight tolerances, proper tooth geometry, and smooth power transmission. Gears can be delivered as rough-machined or fully finished, tailored to meet customer-specific design and performance needs.

Product Features of Alloy Steel Forged Gear

• High Strength & Load Capacity
  Forged from premium alloy steels such as 42CrMo4, 18CrNiMo7-6, these gears offer superior tensile strength and are capable of withstanding extreme loads and torque transmission.

• Enhanced Toughness & Fatigue Resistance
  The forging process refines the grain structure, resulting in high impact resistance and long-term durability under cyclic loading.

• Precision Machining & Heat Treatment
  Each gear undergoes CNC machining and customized heat treatment to achieve high surface hardness and optimized core toughness.

• Optimized Gear Geometry
  Engineered tooth profiles ensure smooth engagement, low vibration, and high efficiency in power transmission.

• Customizable Design
  Dimensions, and material grades can be tailored based on client requirements and operational conditions.

Application Scenarios

• Wind Turbine Gearboxes
  Essential for main shaft and intermediate stages in multi-megawatt wind turbines, ensuring stable torque transfer under fluctuating wind loads.

• Mining & Metallurgy Equipment
  Used in crushers, conveyors, and heavy-duty gear reducers operating under continuous heavy-duty cycles and harsh environments.

• Port & Hoisting Machinery
  Applied in gear mechanisms of large gantry cranes, winches, and lifting systems requiring high torque and reliable power delivery.

• Oil & Gas Transmission Systems
  Integrated into drilling rigs, pump drives, and other oilfield power units for dependable, long-lasting performance.

• Marine Propulsion & Deck Machinery
  Suitable for ship gear drives and deck handling systems where high load capacity and corrosion resistance are critical.

• Heavy Industrial Gearboxes
  Core components in gear units used in steel mills, cement plants, and heavy-duty transmission systems for industrial automation.

Process 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 your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.

2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.

3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.

4. What is your production lead time?

With stock: Around 30 days

Without stock: 40–45 days

5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.

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.