Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | ,T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30 days |
| Packaging Details | Pallet |
| Material | 42CrMo |
| Testing | UT & MT |
| Type | Forged shaft |
| Quality Control | 100% Inspected |
| Application | Wind Turbines & Industrial Gearboxes |
| Weight | Customized |
| Heat Treatment | Normalizing and tempering |
| Color | Original |
| Brand Name | Tiangong |
| Model Number | TG-005 |
| 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 | Testing | UT & MT |
| Type | Forged shaft | Quality Control | 100% Inspected |
| Application | Wind Turbines & Industrial Gearboxes | Weight | Customized |
| Heat Treatment | Normalizing and tempering | Color | Original |
| Brand Name | Tiangong | Model Number | TG-005 |
| Certification | ISO9001, ISO14001,ISO45001 | Place of Origin | Changzhou, China |
| High Light | 42CrMo forged steel shaft ，Custom forged steel shaft ，Wind Turbines drive shaft | ||
Custom 42CrMo Forged Gear Shaft for Wind Turbine and Industrial Gearbox Applications | Open Die Forging.
This gear shaft is precision forged from high-strength 42CrMo alloy steel, offering excellent toughness, wear resistance, and fatigue strength. It is specially designed for use in wind turbine drivetrains and industrial gearbox systems, where stable torque transmission and long-term reliability are critical.
Through controlled forging and heat treatment, the shaft achieves refined grain structure and optimal mechanical properties. Each piece is custom-produced based on customer drawings, ensuring exact dimensional and performance requirements are met.
| Item | Details |
|---|---|
| Product Name | Forged 42CrMo Custom Gear Shaft for Wind Turbines & Industrial Gearboxes |
| Material Grades | 42CrMo |
| Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T - Supports large-section open die forging |
| Manufacturing Process | Forging → Heat Treatment → Rough Machining → Dimensional & NDT Inspection |
| Forging Ratio | ≥ 3.0 — Ensures fine grain refinement, enhanced tensile strength, and excellent internal soundness for heavy-duty operation |
| Applications | wind turbines, port cranes, hoisting systems, mining crushers, and industrial gearboxes, where high strength, torque resistance, and durability are required. |
| Delivery Conditions | - N+T (Normalized + Tempered): For pre-machined rough parts |
| Testing & Inspection | - Chemical Analysis: Optical Emission Spectrometry - Mechanical Tests: Tensile , Impact - NDT: UT , MT - Dimensional Control: Bore dial indicators, precision micrometers - Metallography: Grain size & microstructure |
Key Features:
Material: 42CrMo alloy steel
Process: Forging + Heat Treatment + Rough Machining
Application: Wind energy gearboxes, industrial drive systems
Condition: As forged, rough machined, or fully machined
Advantages:
High torsional and tensile strength
Excellent fatigue and impact resistance
Reliable under high-load and cyclic operation
OEM/ODM custom production available
The steel forgings production flow:
Raw material scrutiny → Unloading of materials → Screening inspection → Preheating treatment → Forging fabrication → Heat treatment application → Quality verification → Rough machining work → Non-destructive examination → Final quality check → Packaging completion → Goods delivery
We have our Own Inspection Lab:
These are the main inspection equipments:
We operate a fully equipped in-house laboratory dedicated to mechanical, chemical, and metallurgical testing. This allows us to perform real-time quality checks throughout the entire production process—from raw material selection to final inspection.
Our laboratory testing equipment includes:
Spectral Component Analyzer – for chemical composition analysis
Hydraulic Universal Testing Machine – for tensile and yield strength testing
Impact Strength Testing Machine with Cryogenic Tank – for room temperature and low-temperature impact testing
Brinell & Rockwell Hardness Testers – to assess surface and core hardness
Ultrasonic Flaw Detector – for internal defect detection (UT)
Metallurgical Microscope – for grain structure and heat treatment evaluation
Program-Controlled Box Furnace – for heat treatment simulations and metallurgical testing
| 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 |
Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.
2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.
3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.
4. What is your production lead time?
With stock: Around 30 days
Without stock: 40–45 days
5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.
Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.
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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