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Help CenterCNC Gear Hobbing Service for Wind Turbine Gearboxes, Large Ring Gears up to 3m Diameter
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At Henan San Kuang Machinery Technology Co., Ltd., we specialize in CNC gear hobbing services for large-scale industrial applications, particularly wind turbine gearboxes and large ring gears up to 3 meters in diameter. With a factory spanning 10,000-30,000 square meters and over a decade of experience since 2014, we deliver precision-machined gears that meet the demanding requirements of wind energy and heavy machinery sectors. Our advanced CNC hobbing machines, combined with rigorous quality control, ensure that every gear meets exacting tolerances and long service life. Whether you need a single prototype or a production run, our engineering team works closely with you to optimize designs and reduce lead times.
Key Features & Technical Specifications
Large Diameter Capacity: Our CNC hobbing machines can accommodate ring gears and spur gears with outer diameters up to 3,000 mm (3 meters). This allows us to serve the wind turbine industry where gear diameters often exceed 2 meters.
High Precision: We achieve tolerances as tight as DIN 6 grade for standard production, with optional DIN 5 for critical applications. Our measurement equipment includes gear analyzers and CMM.
Versatile Module Range: We handle module sizes from 2 to 40 (metric), covering a wide range of tooth profiles including involute, cycloidal, and special profiles.
Material Options: Common materials include 20CrMnTi, 42CrMo, 40Cr, and 20CrNiMo; we also work with stainless steel and custom alloys. Heat treatment services (carburizing, nitriding, induction hardening) are available in-house or through certified partners.
Flexible Batch Sizes: From single pieces to mass production, we adapt to your order quantity. For large ring gears, typical lead time is 4-6 weeks after drawing approval.
Technical Parameters (Typical)
| Parameter | Specification |
|---|---|
| Max. Outer Diameter | 3000 mm |
| Max. Face Width | 600 mm |
| Module Range | 2 - 40 |
| Max. Helix Angle | ±45° |
| Tooth Profile Accuracy | DIN 6 ~ DIN 8 (customizable) |
| Surface Roughness | Ra ≤ 1.6 μm (after hobbing) |
| Material Hardness | Up to HRC 60 (after heat treatment) |
Advantages for Wind Turbine Gearbox Applications
Wind turbine gearboxes operate under extreme loads and require components that offer high reliability, low noise, and long fatigue life. Our CNC hobbing service provides:
Optimized Tooth Geometry: We use advanced software to generate tooth profiles that minimize stress concentrations and improve load distribution, extending gearbox life.
Consistent Quality: Every gear is inspected with a coordination measuring machine (CMM) and gear analyzer. We provide a full inspection report with each shipment.
Cost-Effective Production: By using high-speed CNC hobbing with multi-cut strategies, we reduce cycle time while maintaining precision. This translates to competitive pricing for large ring gears.
Customization: We can modify tooth profiles, root fillet radius, and add tip relief based on your design requirements. Our engineers are available for technical consultation.
Trust & Credibility
Since 2014, Henan San Kuang Machinery Technology Co., Ltd. has grown into a reliable partner for gear manufacturing, with an annual export value of US$2.5 million to US$5 million. Our 51-100 skilled employees operate state-of-the-art equipment in a 10,000-30,000 m² facility. We are certified under multiple quality management systems, including ISO9001, ISO14001, ISO16949, OHSAS18001, and others, ensuring that every step of our process meets international standards. Our main markets span North America, Europe, Asia, and Africa, and we ship from major ports such as Shanghai, Qingdao, and Tianjin. We are committed to delivering gears that exceed your expectations, backed by our experienced engineering team and responsive customer service.
Contact us today to discuss your next wind turbine gearbox project. Whether you need a custom ring gear up to 3 meters or a batch of smaller gears, we are ready to provide a competitive quotation and fast turnaround. Let our expertise help you build more reliable, efficient wind turbines.
Frequently Asked Questions (FAQ)
What is the maximum diameter of ring gears you can hob?
We can hob ring gears up to 3,000 mm (3 meters) in outer diameter. For larger sizes, please contact us for custom solutions.Do you provide heat treatment for the gears?
Yes, we offer various heat treatment options including carburizing, nitriding, and induction hardening. These can be quoted separately or included in the package.What is the typical lead time for a large ring gear for wind turbine gearboxes?
For standard designs, lead time is approximately 4-6 weeks after approval of the final drawing. Rush orders may be possible with prior arrangement.Can you work with customer-supplied materials?
Yes, we accept customer-supplied materials, provided they meet our quality requirements. We will inspect the material before processing.What quality certificates do you provide?
We provide a material certificate, inspection report with dimensional data, and a certificate of conformance. Third-party inspection is also available upon request.Do you offer design assistance for gear optimization?
Absolutely. Our engineering team can help optimize tooth profile, root strengthening, and other parameters to improve performance and reduce weight.How do you ensure the precision of large gears?
We use CNC gear hobbing machines with automatic compensation and in-process measurement. Finished gears are checked on a dedicated gear analyzer and CMM.What payment terms do you accept?
We typically accept T/T, L/C, and other negotiable terms. Minimum order quantity is flexible for custom projects.
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