High-Torque Forged Gears For Offshore Jack-Up Rigs

High-Torque Forged Gears for Offshore Jack-Up Rigs
High-torque forged gears are engineered to deliver exceptional strength, durability, and reliability under the most demanding offshore conditions. Manufactured from premium alloy steels such as 42CrMo4 and 18CrNiMo7-6, these gears undergo precision forging, heat treatment, and rigorous quality inspections to ensure superior fatigue resistance and long service life.

Key Features:

• Exceptional load-bearing capacity and high torque transmission efficiency.

• Optimized material properties for superior wear resistance and toughness.

• Precision forging and machining for tight dimensional accuracy and smooth operation.

• Heat-treated for enhanced hardness and resistance to harsh marine environments.

Applications:
These forged gears are widely used in offshore jack-up rigs, particularly in elevating and positioning systems such as rack and pinion drives, gearboxes, and lifting mechanisms. Their robustness ensures safe and efficient operations in oil & gas exploration, drilling platforms, and other heavy-duty offshore equipment.

Process flow:

Raw material verification → material unloading → dimensional & surface inspection → controlled preheating → forging operation → heat treatment process → in-process inspection → rough machining → non-destructive examination → final inspection → protective packaging → shipment.

Frequently Asked Questions (FAQs)

1. What is your forging capacity?
We manufacture forged components from 100 kg up to 7,000 kg, covering both mid-size and heavy-duty applications.

2. Do you also handle heat treatment and machining?
Yes, we provide complete in-house services including heat treatment, rough machining, and precision finish machining.

3. Which industries do you mainly serve?
Our forged products are widely used in wind power, heavy equipment, port machinery, transmission systems, and other industrial sectors.

4. What is your typical production lead time?

• With stock: Approximately 30 days

• Without stock: 40–45 days depending on complexity and order volume

5. Where is your factory located?
We are based in Changzhou City, close to Shanghai, with convenient logistics and shipments via Shanghai Port.

Request a Quote
Kindly send us your technical drawings and detailed requirements. Our engineering team will evaluate them and provide you with a tailored quotation and solution promptly.

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.