Changzhou Tiangong Forging Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 56000 Tons per year |
| Delivery Time | 30days |
| Packaging Details | Pallet |
| Application | Main transmission gears for wind turbine gearboxes - Yaw and pitch drive gears - Precision powertrain components for onshore/offshore turbines |
| Industry | Free Forging & Open Die Forging |
| Dimensions | Customizable |
| Usage | Wind Turbine Gearbox Application |
| performance· | Erosion and Abrasion |
| Product Type | Forged Gear |
| Durability | Long-lasting |
| Weight | 100-7000kg(Less than) |
| Brand Name | Tiangong |
| 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 | 30days | Packaging Details | Pallet |
| Application | Main transmission gears for wind turbine gearboxes - Yaw and pitch drive gears - Precision powertrain components for onshore/offshore turbines | Industry | Free Forging & Open Die Forging |
| Dimensions | Customizable | Usage | Wind Turbine Gearbox Application |
| performance· | Erosion and Abrasion | Product Type | Forged Gear |
| Durability | Long-lasting | Weight | 100-7000kg(Less than) |
| Brand Name | Tiangong | Certification | ISO9001, ISO14001,ISO45001 |
| Place of Origin | Changzhou, China | ||
| High Light | Precision steel gears 7000kg ，steel gears ISO9001 ，Gearbox powdered steel for forging | ||
Our Precision Alloy Steel Forged Gear for Wind Turbine Gearbox Application is engineered to deliver exceptional performance and durability in harsh wind power environments. Manufactured using high-grade alloy steels such as 18CrNiMo7-6 and 42CrMo4, this forged gear offers superior hardness, wear resistance, and load-bearing capacity—making it ideal for main drive, yaw, and pitch gearboxes in both onshore and offshore wind turbines.
With advanced forging and heat treatment processes, each gear maintains optimal microstructure integrity and dimensional accuracy, ensuring long-term reliability and minimal maintenance. Ultrasonic testing (UT), magnetic particle inspection (MPI), and other non-destructive tests are performed to meet international quality standards.
| Item | Details |
|---|---|
| Product Name | Precision Alloy Steel Forged Gear for Wind Turbine Gearbox Application |
| Material Grades | - Alloy Steels: 18CrNiMo7-6, 42CrMo4- All grades meet wind power transmission requirements |
| Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T - Open die forging for large gear blanks |
| Manufacturing Process | raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery |
| Forging Ratio | ≥ 3.0 — Provides grain refinement, structural uniformity, and load resistance ideal for wind gearbox operation |
| Applications | - Main transmission gears for wind turbine gearboxes - Yaw and pitch drive gears - Precision powertrain components for onshore/offshore turbines |
| Delivery Conditions | - Normalizing + Tempering to enhance toughness, stabilize structure, and ensure dimensional consistency under hydraulic pressure - Optional soft annealing for improved machinability based on downstream processing requirements |
| Testing & Inspection | - Chemical Analysis: Optical Emission Spectrometry - Mechanical Tests: Tensile , Charpy Impact - Hardness: HRC/HB - NDT: UT , MT - specialized gear measuring instruments |
Key Features:
Material options: 18CrNiMo7-6, 42CrMo4, and more
Gear types: helical, spur, and customized profiles
Surface treatment: case hardening, quenching, tempering
Precision machining with CNC for high accuracy
Applications: wind turbine main gearbox, yaw & pitch systems
Application Industries:
Onshore and offshore wind energy
Renewable power generation systems
We provide custom forging solutions to match your specific gearbox requirements. Contact us to learn more about our wind power forging capabilities.
Process flow:
raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.
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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