The Large 42CrMo Forged Crane and Port Machinery Wheels for Heavy-Duty Applications are engineered for superior strength, durability, and reliability in demanding industrial environments. Manufactured from high-quality 42CrMo alloy steel, these wheels are produced through precision open-die forging, followed by optimized heat treatment to achieve excellent hardness, toughness, and wear resistance. Each wheel undergoes rigorous non-destructive testing, including ultrasonic and magnetic particle inspection, ensuring flawless internal integrity and compliance with international quality standards.

These are the main inspection equipments:

Key Features

• Material Excellence – 42CrMo alloy steel offers high tensile strength, impact resistance, and superior fatigue performance.

• Forging Precision – Dense internal grain structure for enhanced load-bearing capacity and extended service life.

• Surface and Core Strength – Uniform hardness distribution to resist deformation under heavy loads.

• Quality Assurance – 100% UT and MT inspections to guarantee defect-free performance.

Applications
These forged wheels are ideal for heavy-duty port cranes, gantry cranes, container handling systems, and other harbor machinery. They are also suitable for use in mining transport equipment, large metallurgical machinery, and rail-mounted lifting systems, providing stable and reliable operation under high-load, high-impact conditions.

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)

Q1: What is the load range your forged components can handle?
Our production capacity covers forgings from approximately 100 kg up to 7 metric tons, catering to both medium-scale equipment and large heavy-duty machinery applications.

Q2: Do you offer heat treatment and machining as part of your service package?
Absolutely. We perform all heat treatment processes in-house and can supply components in either rough-machined condition or fully finished via precision CNC machining per customer requirements.

Q3: Which industries most often use your forged solutions?
Our products serve multiple sectors, including renewable energy (wind turbines), port lifting and handling equipment, large-scale construction machinery, and industrial power transmission systems.

Q4: What are the usual lead times for production?

• Standard stocked items: Around 30 days

• Custom-engineered forgings: Generally 40–45 days, subject to order size and technical specifications

Q5: Where is your manufacturing base located?
We operate from Changzhou, Jiangsu Province, just a short distance from Shanghai Port, allowing for efficient global logistics and export shipping.

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.