Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 42CrMo, 18CrNiMo7-6 ,4140, 40CrNiMo |
| Production Lead time | 30 days |
| Machining | CNC Rough Machining or Forged Blanks |
| Heat Treatment | Normalizing and tempering |
| Testing | UT & MT |
| Oil Protecting | Actionable |
| Hardness | Accept customized |
| HS Code | 84834999 |
| Brand Name | Tiangong |
| Model Number | TG-004 |
| 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, 18CrNiMo7-6 ,4140, 40CrNiMo | Production Lead time | 30 days |
| Machining | CNC Rough Machining or Forged Blanks | Heat Treatment | Normalizing and tempering |
| Testing | UT & MT | Oil Protecting | Actionable |
| Hardness | Accept customized | HS Code | 84834999 |
| Brand Name | Tiangong | Model Number | TG-004 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | Alloy Steel coupling shaft 100kg ，coupling shaft 7000kg ，rotating shaft | ||
Alloy Steel Rotating Shafts Are Used In Large Industrial Equipment100-7000kg Custom Solutions. Our alloy steel rotating shafts are designed for heavy-duty industrial applications, with weights ranging from 100 kg to 7000 kg. Forged from high-strength materials such as 42CrMo, 4140, or 18CrNiMo7-6, these shafts provide excellent torsional strength, fatigue resistance, and stability under continuous operation.
They are widely used in power transmission systems of large-scale equipment, including wind turbines, port cranes, mining machines, and metallurgical gearboxes. With precision forging, heat treatment, and optional rough or finish machining, each shaft is tailored to meet customer specifications and performance requirements.
| Material | 4140,4130,18CrNiMo7-6,4340,4330,1.7225,35# 45# 20CrMnTi 20CrNi2Mo 20CrMnMo 18CrNiMo7-6 42CrMo 20CrNo 35CrMo |
| Forging Equipment | 5 TON, 8 TON, 12 TON Hydralic hammer |
| Apply for | Transmission main shaft is used for driving force |
| Manufacturing Process | Forging+heat treatment+rough machining |
| Forging ratio | ≥ 3.0 — Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation |
| Delivery terms | Rough machining(N+T) |
| 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, finish machining, 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. |
Key Features:
Weight Range: 100–7000 kg
Materials: Alloy steel grades including 42CrMo, 4140, 18CrNiMo7-6
Applications: Wind power, heavy equipment, port machinery, metallurgy
Condition: As forged, rough machined
Services: OEM customization, drawing-based production, mechanical testing
Advantages:
Superior load-bearing and rotational performance
Enhanced fatigue life and dimensional accuracy
Full traceability and quality inspection (UT, MPI, hardness, etc.)
Flexible sizing and machining to suit project needs
The steel forgings production flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
Please send us the drawings and technique requirements, we will quote you soon.
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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