Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | CrMo alloy steel,NiMo alloy steel and more |
| High Light | crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering |
| Forging Tolerance | According to the drawing，Customizable |
| Testing | Tensile impact metallographic nondestructive testing, etc. |
| Oil Protecting | Yes |
| Hardness | Customizable |
| Apply | Port machinery related crane wheels |
| Brand Name | Tiangong |
| Model Number | TG-001 |
| Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China |
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Product Specification
| Payment Terms | ,T/T | Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days | Packaging Details | Pallet |
| Material | CrMo alloy steel,NiMo alloy steel and more | High Light | crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering | Forging Tolerance | According to the drawing，Customizable |
| Testing | Tensile impact metallographic nondestructive testing, etc. | Oil Protecting | Yes |
| Hardness | Customizable | Apply | Port machinery related crane wheels |
| Brand Name | Tiangong | Model Number | TG-001 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | Heavy Duty Crane Machinery Wheels ，42CrMo Crane Machinery Wheels ，Forged Crane Machinery Wheels | ||
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.
| Item | Details (Heavy-Duty Open Die Forged Crane Wheel) |
|---|---|
| Material | 4140 Alloy Steel – Offers excellent shock resistance, fatigue durability, and wear performance under dynamic heavy-load conditions. |
| Forging Capability | Hydraulic Hammers: 5T / 8T / 12T – Enable deep plastic deformation and directional grain refinement during open die forging, ensuring internal soundness. |
| Main Application | Developed for large-scale lifting systems, including gantry cranes, port cranes, and heavy-duty container carriers operating in high-load environments. |
| Production Process | Open Die Forging → Heat Treatment (Normalizing + Tempering) → Rough Machining – Delivers high strength and dimensional accuracy throughout the process. |
| Deformation Ratio | Forging Ratio ≥ 3.0 – Improves grain flow alignment and reinforces load-carrying structure, reducing the risk of internal failure under fatigue. |
| Delivery State | Delivered as rough-machined and heat-treated, including stress relieving to prevent deformation during final machining or service. |
| Inspection Tools | Comprehensive testing with: Spectrometer, UT device, tensile & impact machines, metallographic scope, micrometers, bore indicators, hardness testers, etc., ensuring traceable quality control. |
| Service Package | Tiangong Forging offers an end-to-end service, including forging, machining, heat treatment, quality inspection, custom packing, port clearance, and global shipment coordination — fully aligned with client specifications and international standards. |
These are the main inspection equipments:
| Our Lab inspection equipment | |
| 1 | Spectral component analyzer |
| 2 | Impact strength testing machine |
| 3 | Impact test cryogenic tank |
| 4 | Ultrasonic flaw detector |
| 5 | Brinell hardness tester |
| 6 | Rockwell hardness tester |
| 7 | Digital hydraulic universal testing machine |
| 8 | H.Metallurgical microscope |
| 9 | Program-controlled box furnace |
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.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1994
Total Annual:
27.5 million -28 million
Employee Number:
135~150
Ecer Certification：
Verified Supplier
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 ... 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 ...
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