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Welcome to Henan San Kuang Machinery Technology Co., Ltd. – your trusted partner for high-quality wind turbine components. Our Split Ring Gear for Wind Turbine Yaw System with Corrosion Resistant Coating is engineered to deliver reliable performance in the harshest environments. With over a decade of experience since 2014, we combine advanced manufacturing techniques and rigorous quality control to produce split ring gears that ensure smooth yaw rotation and long service life. The integrated corrosion-resistant coating provides exceptional protection against moisture, salt spray, and UV exposure, making these gears ideal for both onshore and offshore installations.
Our split ring gears are manufactured in our 10,000–30,000 m² facility located in Luoyang, Henan, China. We serve clients across North America, Europe, Southeast Asia, and Oceania, exporting annually US$2.5–5 million worth of precision machinery parts. Every gear undergoes strict inspection to meet international standards, and we offer customization options to fit your specific yaw system requirements.
Key Features & Technical Specifications
- Split Design (Two-Piece Construction) – Facilitates easy installation and maintenance without removing the entire gearbox or tower. Each segment is precisely machined to ensure a seamless match when bolted together.
- Corrosion Resistant Coating – Available in epoxy, zinc-rich, or hard anodized finish (optional). Provides superior resistance to salt spray (tested up to 1000 hours per ASTM B117) and extreme weather conditions.
- High Strength Material – Made from premium alloy steel (e.g., 42CrMo4) or ductile iron, with optional carburizing and quenching for enhanced tooth surface hardness (HRC 50–60).
- Precision Machining – Achieves DIN 6–8 accuracy grade (AGMA Q8–Q10 equivalent), ensuring low noise, low vibration, and smooth engagement with the pinion.
- Heat Treatment Flexibility – Customizable heat treatment processes including normalizing, quenching, tempering, and surface hardening to meet your required mechanical properties.
- Large Diameter Capability – Outer diameters from 1000 mm to 5000 mm (customizable beyond), with module ranges from 10 to 40.
- Rigorous Quality Control – 100% dimensional inspection, magnetic particle testing (MPI), and ultrasonic testing (UT) available upon request. Our company holds multiple certifications including ISO 9001, ISO 14001, OHSAS 18001, and SA8000.
- Easy Maintenance – Each segment is pre-drilled for bolts, and replacement can be performed without heavy lifting equipment. Ideal for retrofitting existing wind turbines.
| Parameter | Value Range | Notes |
|---|---|---|
| Outer Diameter | 1000 – 5000 mm | Consult for larger sizes |
| Module | 10 – 40 | Standard or custom |
| Number of Segments | 2 | Customizable split lines |
| Tooth Hardness | HRC 50 – 60 | After carburizing |
| Accuracy Grade | DIN 6 – 8 | or AGMA Q8–Q10 |
| Coating Thickness | 80 – 200 μm | Based on environment |
| Max Load Capacity | Up to 500 kNm (torque) | Case-dependent |
Why Choose Our Split Ring Gear?
- Reduced Downtime – The split design allows quick replacement of yaw ring gear without major disassembly. For wind farms, this translates to significant savings in maintenance costs and lost energy production.
- Extended Service Life – Corrosion-resistant coating protects against rust and pitting, especially in offshore environments where salt exposure is severe. Our gears have demonstrated a lifespan increase of up to 30% compared to uncoated alternatives (based on field data).
- Customizable Fit – We work with your drawings or specifications to match existing yaw drives. Whether you need a specific bolt pattern, internal spline, or additional features, our engineering team can accommodate.
- Global Shipping Convenience – Our products are shipped from major Chinese ports (Shanghai, Lianyungang, Qingdao, Tianjin). We ensure proper packaging and sea-worthy crating to prevent damage during transit.
- Proven Track Record – With 51–100 skilled employees and annual exports exceeding US$2.5 million, we have supplied split ring gears to wind turbine OEMs and aftermarket service providers worldwide. Our quality management system meets ISO 9001, ISO 14001, OHSAS 18001, and SA8000 standards.
Trust Built on Quality and Service – Since our founding in 2014, Henan San Kuang Machinery Technology Co., Ltd. has grown into a recognized supplier of heavy-duty gear components. Our factory spans 10,000–30,000 m² and employs advanced CNC gear hobbing, shaping, and grinding machines. We are committed to continuous improvement and customer satisfaction. With multiple certifications including HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001 and others, we ensure that every product meets the highest standards of safety, quality, and environmental responsibility. Our main markets cover North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Contact our sales team today to discuss your specific yaw ring gear requirements and receive a competitive quotation.
Frequently Asked Questions (FAQ)
Q1: What is the typical lead time for a split ring gear?
A: Lead time depends on size and customization. Standard designs: 30–45 days after drawing approval. Custom heat treatment or coating may extend to 60 days. We will provide a detailed schedule upon order confirmation.
Q2: Can the corrosion-resistant coating be applied on site?
A: The coating is applied at our factory under controlled conditions. We recommend against field application due to uneven thickness and adhesion issues. However, we can supply touch-up kits for minor repair during installation.
Q3: Do you provide installation instructions or onsite support?
A: Yes. We provide detailed assembly drawings and bolt torque specifications. For large orders or complex retrofits, onsite technical support can be arranged (subject to availability and travel expenses).
Q4: What is the maximum diameter you can manufacture?
A: Our current capacity is up to 5000 mm outer diameter for split ring gears. Larger sizes can be discussed for special projects – please contact our engineering team.
Q5: How do you ensure the alignment of the two halves?
A: Each segment is machined with precision locating dowel holes and matched marking. The bolted joint is designed to maintain concentricity and tooth alignment. We also offer optional alignment fixtures for installation.
Q6: Are the gears interchangeable with other manufacturers' yaw systems?
A: Yes. We can reverse-engineer or manufacture based on your existing gear dimensions. Provide us with a sample or detailed drawing, and we will match the interface and tooth geometry.
Q7: What is the warranty period for your split ring gears?
A: We offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are available upon request.
Q8: Can you provide third-party inspection certificates?
A: Yes. We can arrange inspection by BV, SGS, or other accredited third parties at the buyer's cost. We also issue our own Mill Test Certificates and material reports.
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