Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 42CrMo |
| High Light | We supply all sizes for ZPMC crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering |
| Forging Tolerance | +/-0.2mm |
| Testing | UT & MT |
| Oil Protecting | ok |
| Hardness | Customizable |
| Apply | Port Machine |
| 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 | 42CrMo | High Light | We supply all sizes for ZPMC crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering | Forging Tolerance | +/-0.2mm |
| Testing | UT & MT | Oil Protecting | ok |
| Hardness | Customizable | Apply | Port Machine |
| Brand Name | Tiangong | Model Number | TG-001 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | Alloy Steel metal forgings ，metal forgings 42CrMo ，Rough Machined crane wheel | ||
42CrMo Alloy Steel Forged Crane Wheels – Rough Machined for Port Machinery. Our forged crane wheels are manufactured from high-strength 42CrMo alloy steel, offering superior toughness, wear resistance, and impact strength—ideal for heavy-duty port handling equipment and gantry cranes. Each wheel is rough machined after forging, providing an optimal balance between structural integrity and processing flexibility for your final machining requirements.
The forged structure eliminates internal defects common in cast components, while the 42CrMo alloy ensures excellent mechanical performance even under high loads, harsh environments, and repetitive operations typical in port machinery applications.
| Material | 42CrMo |
| Forging Equipment | 5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for | Port Machine |
| Manufacturing Process | Forging+heat treatment+rough machining |
| Forging ratio | ≥ 3.0 — Promotes directional grain flow, ensuring excellent load-bearing capacity and fatigue resistance in metallurgical applications |
| Delivery terms | Rough machining,normalizing and tempering for enhanced mechanical properties- Stress relief treatment to ensure dimensional stability |
| Test equipment | Spectrograph, UT device, tensile and impact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
| Service | Our service included the forging, process, heat treatment, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality. |
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: 42CrMo / 42CrMo4 Alloy Steel
Process: Forged + Rough Machined
Diameter Range: As per customer drawing
Condition: Rough machined or semi-finished
Heat Treatment: Normalizing and Tempering available
Hardness: Customized per working conditions
Advantages:
Excellent fatigue resistance and crack prevention
Long service life under heavy cyclic loads
Reduced internal porosity and better metallurgical quality compared to cast wheels
Customizable geometry and material specs based on working conditions
Typical Applications:
Port gantry cranes
Container stackers
Rail-mounted ship unloaders
Heavy-duty hoisting and handling systems
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)
What is your forging capacity in terms of weight?
We manufacture forged components with unit weights ranging from 100 kg up to 7000 kg.
Do you offer heat treatment and machining services?
Yes. We provide complete in-house heat treatment, as well as both rough and precision machining based on your requirements.
Which industries do you typically serve?
Our forged products are widely used in wind power, heavy industrial machinery, port handling equipment, and gearbox transmission systems, among others.
What are your standard production lead times?
In stock: Approximately 30 days
Made to order: Typically 40 to 45 days, depending on complexity and volume
Where is your manufacturing facility located?
We are based in Changzhou City, close to Shanghai. Shipments are typically handled through Shanghai Port for convenient global logistics.
Waiting for your inquiry.
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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