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China factory - Changzhou Tiangong Forging Co., Ltd.

Changzhou Tiangong Forging Co., Ltd.

  • China,Changzhou ,Jiangsu
  • Verified Supplier

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China Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission
China Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission

  1. China Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission
  2. China Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission
  3. China Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission

Large Module Hardened Forge Cast Iron Turbine Gear For Wind Turbine Transmission

  1. MOQ: 1
  2. Price: USD1000-USD3000/piece
  3. Get Latest Price
Payment Terms T/T
Supply Ability 56000 Tons per year
Delivery Time 30days
Packaging Details Pallet
Application Large-module transmission gears for main wind turbine gearboxes - Yaw and pitch drive gears in high-load systems - Onshore and offshore turbine drive trains
Origin Of Goods Changzhou, Jiangsu
Industry Free Forging & Open Die Forging
Forging Weight 100kg|100kg-7ton or Customized
Dimensions Customizable
Usage Wind Turbine Transmission Units
Size Customized
Resistance Corrosion and Wear
Product Type Forged Gear
Durability Long-lasting
Brand Name Tiangong
Certification ISO9001, ISO14001,ISO45001
Place of Origin Changzhou, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability 56000 Tons per year
Delivery Time 30days Packaging Details Pallet
Application Large-module transmission gears for main wind turbine gearboxes - Yaw and pitch drive gears in high-load systems - Onshore and offshore turbine drive trains Origin Of Goods Changzhou, Jiangsu
Industry Free Forging & Open Die Forging Forging Weight 100kg|100kg-7ton or Customized
Dimensions Customizable Usage Wind Turbine Transmission Units
Size Customized Resistance Corrosion and Wear
Product Type Forged Gear Durability Long-lasting
Brand Name Tiangong Certification ISO9001, ISO14001,ISO45001
Place of Origin Changzhou, China
High Light Large forge cast ironModule Hardened forge cast ironTurbine Gear forge for melting metal

The Large Module Hardened Forged Turbine  Gear for Wind Turbine Transmission Units is engineered to deliver exceptional torque transmission and durability in utility-scale wind turbine gearboxes. Manufactured from premium alloy steels such as 18CrNiMo7-6 or 42CrMo4, each gear is precision forged and heat treated to ensure optimal surface hardness, core toughness, and fatigue resistance.

 

Large Module Hardened Forged Gear for Wind Turbine Transmission Units. Featuring large module design, these forged gears are specifically tailored to handle high-load, low-speed wind turbine drive conditions. The gear surfaces undergo case hardening or through hardening processes  to achieve superior wear resistance and long service life under fluctuating loads and challenging environmental conditions.

 

Typical applications include main stage transmission gears, yaw drive gears, and pitch control gears in both onshore and offshore wind turbines. All gears are manufactured in accordance with international standards.

 

Item Details
Product Name Large Module Hardened Forged Gear for Wind Turbine Transmission Units
Material Grades - Alloy Steels: 18CrNiMo7-6, 42CrMo4,and more
Forging Equipment - Hydraulic Hammers: 5T, 8T, 12T - Open die forging of large gear blanks
Manufacturing Process Forging → Heat Treatment → Rough Machining → Gear Hobbing/Shaping → Gear Grinding (if required) → Final Machining → NDT & Dimensional Inspection
Forging Ratio ≥ 3.0 — Ensures uniform grain flow, improved internal integrity, and excellent mechanical strength under wind turbine gearbox loads
Gear Hardening Options -Normalizing and Tempering
Applications - Large-module transmission gears for main wind turbine gearboxes - Yaw and pitch drive gears in high-load systems - Onshore and offshore turbine drive trains
Process Compliance  Supports customer drawings and technical specifications
Delivery Conditions - Q+T (Quenched + Tempered) for core strength - Case-hardened or carburized for wear resistance
Testing & Inspection - Chemical Analysis: Optical Emission Spectrometry - Mechanical Tests: Tensile , Charpy Impact  - Hardness: Brinell/Rockwell - NDT: UT, MT - Tooth Profile, Lead, Pitch & Runout: Precision gear measuring instruments 

Product Features:

  • Large Module Design
    Engineered for high-torque, low-speed applications common in wind turbine transmissions, enabling robust load-carrying capacity.

  • High-Strength Forged Alloy Steel
    Produced from premium grades like 18CrNiMo7-6 and 42CrMo4, ensuring excellent toughness, fatigue resistance, and internal soundness.

  • Advanced Heat Treatment
    Hardened via carburizing or quenching & tempering processes to achieve high surface hardness  and deep case depth for long wear life.

  • Precision Machining
    CNC finish machining ensures gear tooth accuracy, providing smooth transmission and reduced vibration.

  • Customizable Dimensions
    Support for large outer diameters  and tailored profiles based on gearbox requirements.

  • Inspection & Traceability
    100% UT/MT/NDT tested, mechanical property verified.


Applications:

  • Wind Turbine Gearboxes
    Used in main transmission stages of utility-scale wind turbines (onshore & offshore) to handle variable wind loads and long maintenance intervals.

  • Yaw Drive and Pitch Control Systems
    Applied in yaw and pitch mechanisms for controlling nacelle orientation and blade angle, ensuring turbine efficiency and safety.

  • Heavy-Duty Industrial Gearboxes
    Applicable to large-scale industrial reducers requiring high durability and rotational stability under heavy or cyclic loads.

 

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

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • 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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  • Changzhou Tiangong Forging Co., Ltd.
  • Wangxia Village, Luoxi Town, Xuejia Town, Xin Bei District, Changzhou City, Jiangsu Province, China
  • https://www.freeforgings.com/

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