Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 4140 Alloy Steel Material |
| High Light | We supply all sizes for ZPMC crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering |
| Forging Tolerance | According to the drawing |
| Testing | Tensile impact metallographic nondestructive testing, etc. |
| Oil Protecting | Yes |
| Hardness | Customizable |
| Apply | Specifically designed for port cranes, container handling trolleys, and gantry crane systems. |
| 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 | 4140 Alloy Steel Material | High Light | We supply all sizes for ZPMC crane wheels for all over the world |
| Heat Treatment | Normalizing and tempering | Forging Tolerance | According to the drawing |
| Testing | Tensile impact metallographic nondestructive testing, etc. | Oil Protecting | Yes |
| Hardness | Customizable | Apply | Specifically designed for port cranes, container handling trolleys, and gantry crane systems. |
| Brand Name | Tiangong | Model Number | TG-001 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | Rough Machined Crane Wheel ，Alloy Steel Crane Wheel ，4140 Alloy Steel Crane Wheel | ||
The Rough Machined Crane Wheel in 4140 Alloy Steel Material is engineered for demanding industrial environments where high strength, wear resistance, and dimensional reliability are critical. Forged from premium 4140 alloy steel and rough machined to your specifications, this crane wheel is ideal for heavy-duty lifting systems that operate under high loads and continuous cycles.
| Item | Details (4140 Alloy Steel Crane Wheel) |
|---|---|
| Material | 4140 Alloy Steel – Known for high fatigue strength, toughness, and resistance to wear and impact under load. |
| Forging Equipment | 5T, 8T, 12T Hydraulic Hammers – Ensures uniform deformation and fine grain structure during open-die forging. |
| Application | Specifically designed for port cranes, container handling trolleys, and gantry crane systems. |
| Manufacturing Process | Forging + Normalizing & Tempering + Rough Machining – Guarantees structural integrity and mechanical performance. |
| Forging Ratio | ≥ 3.0 – Promotes optimal grain orientation for enhanced load-bearing capacity and service life. |
| Delivery Condition | Supplied in rough-machined condition, heat treated (normalized & tempered), with stress relief to maintain dimensional stability during final machining. |
| Testing Equipment | Equipped with spectrometer, ultrasonic flaw detector, tensile & impact testers, metallographic microscope, micrometers, bore gauges, and hardness testers to ensure full quality traceability. |
| Service Scope | From forging and machining to heat treatment, inspection, packaging, port delivery, and export logistics. Tiangong Forging provides complete service solutions focused on customer-specific requirements and consistent product 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 |
Material: High-strength 4140 alloy steel with excellent hardenability and toughness
Process: Precision open-die forging followed by rough machining
Surface: Machined to near-net shape, ready for final machining or heat treatment
Performance: Superior fatigue resistance and long service life under heavy loads
Customization: Sizes, tolerances, and bore dimensions available upon request
This forged crane wheel is widely used in:
Overhead cranes and gantry cranes
Port container handling systems
Mining and bulk material conveyors
Steel mill transfer carts and hoisting equipment
Industrial automation tracks and rail-guided vehicles
The steel forgings production flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
Q1: What is the weight range of your forged products?
Our forging capabilities cover single components weighing from 100 kg up to 7 metric tons, meeting both medium and large-scale industrial requirements.
Q2: Do you provide heat treatment and machining options?
Absolutely. We carry out in-house heat treatment processes and offer both rough and precision CNC machining services depending on customer needs.
Q3: What industries do you mainly supply?
We serve a broad range of sectors including wind energy, port machinery, heavy-duty equipment manufacturing, and gearbox & drive system production.
Q4: How long does production usually take?
For stocked items: Around 30 days
For customized forgings: Usually 40 to 45 days, subject to design complexity and order size
Q5: Where are you located?
Our manufacturing base is in Changzhou, Jiangsu Province, strategically located near Shanghai, with most international deliveries shipped via Shanghai Port for efficient export logistics.
We welcome your inquiries and look forward to supporting your forging needs.
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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