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Help CenterHeavy Duty Planetary Ring Gear Alloy Steel Internal Gear for Construction Machinery Reducer
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Heavy Duty Planetary Ring Gear – Engineered for Construction Machinery Reducers
Henan San Kuang Machinery Technology Co., Ltd., established in 2014 and backed by a 10,000–30,000 square meter manufacturing facility, presents our premium Heavy Duty Planetary Ring Gear fabricated from high-quality alloy steel. Designed specifically for construction machinery reducers, this internal gear delivers exceptional torque capacity, extended service life, and reliable performance under the most demanding excavator, bulldozer, and crane applications. With decades of combined experience and a commitment to precision engineering, our ring gears are the backbone of your drivetrain.
Key Features & Technical Specifications
- Premium Alloy Steel Construction – Made from 20CrMnTi, 42CrMo, or equivalent alloys for high strength and wear resistance.
- Precision Machined Internal Teeth – Hobbed and shaved to achieve DIN 6-8 accuracy, ensuring smooth meshing and low noise.
- Advanced Heat Treatment – Carburizing and quenching with tempering provides a hard case (HRC 58-62) and tough core, resisting pitting and breakage.
- Customizable Geometry – Module, number of teeth, face width, and root profile can be tailored to match your planetary gear system.
- Rigorous Quality Control – 100% dimensional inspection, magnetic particle testing (MT) or ultrasonic testing (UT) available upon request.
- Suitable for Heavy Loads – Optimized for high radial and axial loads typical in construction machinery reducers.
Typical Parameters (Reference)
| Parameter | Standard Range | Notes |
|---|---|---|
| Material | Alloy Steel (e.g., 20CrMnTi, 42CrMo) | Customizable per customer |
| Hardness (Case) | HRC 58-62 | Optional alternative treatments |
| Module | 2 – 20 mm | Wider range on request |
| Number of Teeth | 20 – 200 | Customized per design |
| Precision Grade | DIN 6 – 8 | Higher grades achievable |
| Surface Treatment | Black oxide, phosphating, or as specified | Anti-corrosion optional |
Why Choose Our Ring Gear?
Our planetary ring gears are manufactured using state-of-the-art CNC hobbing and gear grinding machines, ensuring consistent tooth profile and pitch accuracy. Each gear undergoes strict quality checks including hardness testing, microstructure analysis, and gear measurement. The result is a product that offers higher load capacity, lower noise, and longer fatigue life compared to standard gears. For construction machinery reducers, this translates into reduced downtime, lower maintenance costs, and improved overall machine efficiency.
Trusted Partner for Global Customers
Henan San Kuang Machinery Technology Co., Ltd. is a professional gear manufacturer with over 10 years of export experience, serving markets in North America, South America, Europe, Southeast Asia, Africa, and more. Our facility spans 10,000–30,000 square meters, housing 51–100 skilled employees, and our annual export value ranges from US$2.5 million to US$5 million. We hold multiple management system certifications including ISO9001, ISO14000, OHSAS18001, and have passed audits like TL900, SA8000, and HACCP. This comprehensive quality framework ensures every ring gear meets international standards.
We are committed to delivering customized solutions for your specific reducer designs. Whether you need a standard module or a special profile, our engineering team will work closely with you to optimize the gear parameters for maximum durability. We ship from major Chinese ports (Shanghai, Qingdao, Tianjin, Lianyungang) with prompt lead times.
Contact us today for a quote or technical discussion. Let our heavy duty planetary ring gear be the reliable solution for your construction machinery reducers.
Frequently Asked Questions
-
Q: What alloy steels do you use for the ring gear?
A: We commonly use 20CrMnTi, 42CrMo, or 40Cr. If your application requires specific material grades, we can adjust accordingly. -
Q: Can you manufacture ring gears with a module outside the 2-20 mm range?
A: Yes. Our production capabilities allow for modules as small as 1.5 mm or as large as 25 mm upon request. Please provide your drawing. -
Q: What is the typical lead time for a custom ring gear?
A: For a new design with drawings, the lead time is approximately 30–45 days depending on complexity and quantity. Standard designs may ship faster. -
Q: Do you provide heat treatment services?
A: Yes, we offer carburizing, quenching, tempering, induction hardening, and nitriding as optional processes. The standard is carburizing & quenching to HRC 58-62. -
Q: How do you ensure the quality of the internal gear teeth?
A: We use coordinate measuring machines (CMM) and gear testers to inspect tooth profile, pitch, and runout. Each batch is accompanied by a quality report if required. -
Q: Can you produce ring gears with special surface coatings?
A: Yes. We can apply black oxide, manganese phosphate, zinc plating, or DLC coatings. Discuss your requirement with our sales team. -
Q: Is there a minimum order quantity (MOQ)?
A: For new customers, our MOQ is typically 10 pieces per size. For repeat orders, smaller quantities are negotiable. -
Q: What are your payment terms and shipping ports?
A: We accept T/T, L/C, and other standard terms. Shipment is from Shanghai, Qingdao, Tianjin, or Lianyungang – whichever is most convenient for you.
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