Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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Precision 18CrNiMo7-6 Open Die Forgings for Wind Power Sun Gear Transmission
These precision open die forgings are manufactured from high-grade 18CrNiMo7-6 alloy steel, renowned for its excellent hardenability, wear resistance, and core toughness—making it ideal for high-load and long-life gear transmission systems in wind turbines.
Forged using hydraulic hammers and controlled thermal processes, each component features a refined grain structure and enhanced internal integrity. The open die forging process supports large-diameter gear blanks with complex geometries while ensuring mechanical uniformity across critical sections.
High-Performance Alloy Steel: Forged from 18CrNiMo7-6, known for excellent hardenability, wear resistance, and strength—ideal for critical rotating parts in wind power systems.
Open Die Forging Process: Hydraulic hammers (5T–12T) enable precise forging of large gear blanks, ensuring uniform grain flow and low porosity.
Enhanced Structural Integrity: Forging ratio ≥ 3.0 helps refine grain structure and improve fatigue resistance under fluctuating loads.
Machining-Ready Quality: Excellent dimensional stability and machinability for downstream gear hobbing, shaping, and grinding.
Main Gear Drives in Wind Turbine Gearboxes: Suitable for high-torque, high-speed transmission systems in both onshore and offshore turbines.
Yaw and Pitch Drive Systems: Used in control gear assemblies that operate under frequent directional changes and load cycles.
Renewable Power Installations: Designed for long-life, low-maintenance performance in variable environments, including coastal and extreme climate regions.
| Item | Details |
|---|---|
| Product Name | Precision 18CrNiMo7-6 Open Die Forgings for Wind Power Gear Transmission |
| Material Grades | - 18CrNiMo7-6 alloy steel engineered for high strength, hardenability, and wear resistance in rotating gear components- Composition optimized for wind turbine gearbox performance |
| Forging Equipment | - Hydraulic Hammers: 5T, 8T, 12T- Supports open die forging of large gear blanks with precision control |
| Manufacturing Process | Raw Material Inspection → Preheating → Open Die Forging → Heat Treatment → Rough Machining → Non-Destructive Testing → Finish Machining (if needed) → Dimensional Inspection → Packaging → Delivery |
| Forging Ratio | ≥ 3.0 — Ensures refined grain structure, high fatigue strength, and directional flow for long-life gear transmission under variable wind loads |
| Applications | - Gear blanks and preforms for main wind turbine gearboxes- Yaw and pitch transmission components in wind energy systems- Suitable for high-torque, cyclically loaded drivetrain assemblies in both onshore and 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 Composition Analysis via Spectrometry- Mechanical Tests: Tensile, Impact, Hardness- Non-Destructive Testing: UT, MT- Dimensional accuracy and surface geometry verified by precision gear metrology tools |
Frequently Asked Questions (FAQs)
What's the typical weight bracket for the forged components you manufacture? Our forging capabilities cover a spectrum from 100 kilograms up to 7 metric tons.
Do you handle post-forging processes like thermal treatment and material shaping? Indeed, we offer comprehensive in-house services for heat treatment, encompassing both preliminary and final machining stages.
Which industrial sectors are your primary customers? We cater to a diverse range of vital industries, including wind power generation, heavy construction equipment, port infrastructure, power transmission systems, and beyond.
What are your standard timelines for manufacturing and delivery? For items currently in our inventory, the typical lead time is approximately 30 days. For custom-produced orders, the timeframe generally falls within 40 to 45 days.
Could you specify the geographical location of your production facility and shipping port? Our factory is located in Changzhou City, which is strategically positioned near Shanghai, and we utilize the Port of Shanghai for our shipping operations.
Request a Quotation
To receive a tailored price proposal and an engineering solution designed to meet your specific needs, please forward your detailed technical drawings and requirements to our team. Our engineers will promptly review your submission and provide you with a professional quotation and a suitable solution.