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Help CenterRotary Kiln Girth Gear With 1-Year Warranty and Mill Test Report, 100% Inspected for Gear Accuracy
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Henan San Kuang Machinery Technology Co., Ltd. is a professional manufacturer specializing in heavy-duty transmission components. Based in Luoyang, Henan, China, our factory spans over 10,000 square meters and employs 51–100 skilled workers. We are proud to offer the Rotary Kiln Girth Gear – a critical component for cement, metallurgy, and chemical industries. Each gear is supplied with a 1-year warranty and a Mill Test Report, and is 100% inspected for gear accuracy to ensure reliable performance and long service life.
Our girth gears are manufactured using high-quality alloy steel and undergo strict heat treatment processes to achieve excellent wear resistance and fatigue strength. With a dedicated quality control team and advanced testing equipment, we guarantee that every gear meets international standards. Whether you need a standard design or a customized solution, we provide the precision and durability your rotary kiln demands.
Below are the key features, technical specifications, and benefits of our Rotary Kiln Girth Gear:
- High-Quality Material: Made from forged or cast alloy steel (e.g., 42CrMo, 35CrMo) with optimized chemical composition for strength and toughness.
- Precision Machining: CNC hobbing and gear shaping ensure accurate tooth profiles, classified as AGMA 8–10 grade.
- Complete Heat Treatment: Quenching and tempering, plus surface hardening (induction or carburizing) to enhance surface hardness while maintaining core ductility.
- 100% Inspection: Each gear is tested for runout, tooth spacing, hardness, and magnetic particle (MPI) or ultrasonic testing (UT) upon request.
- Mill Test Report Included: We provide a detailed report covering material traceability, mechanical properties, and inspection results.
- 1-Year Warranty: Covers manufacturing defects, giving you peace of mind.
- Customizable Design: Module, tooth count, bore, keyway, and mounting holes can be tailored to your existing kiln system.
- Long Service Life: Properly heat-treated and precision-ground gears reduce vibration and wear, extending the overhaul interval of your rotary kiln.
| Parameter | Value / Range |
| Module (mm) | 10 – 50 (customizable) |
| Outer Diameter (mm) | 1000 – 8000 |
| Number of Teeth | 50 – 300 |
| Face Width (mm) | 200 – 1200 |
| Material | 42CrMo, 35CrMo, 40Cr, or custom |
| Heat Treatment | Quenching & tempering + surface hardening |
| Surface Hardness (HRC) | 40 – 55 (after hardening) |
| Precision Grade | AGMA 8 – 10 (100% inspected) |
| Warranty | 1 year |
| Inspection Report | Mill Test Report (MTR) included |
Key Benefits for Your Business:
- Reduced Downtime: High precision and consistent tooth contact minimize vibration and noise, protecting your kiln drive system.
- Cost-Effective: Competitive pricing without compromising quality – direct from manufacturer with no middleman.
- Easy Integration: Customizable mounting and tooth profile ensure compatibility with existing pinions and kiln shells.
- Full Traceability: Mill Test Report provides material lot number, chemical analysis, mechanical test results, and inspection records.
- Global Support: We ship to major ports worldwide (Shanghai, Lianyungang, Qingdao, Tianjin) and serve customers across North America, South America, Europe, Asia, Africa, and Oceania.
Company Trust & Reliability
Since 2022, Henan San Kuang has grown rapidly to achieve an annual export value of US$2.5–5 million. Our factory is equipped with advanced CNC gear hobbing machines, vertical lathes, and heat treatment furnaces. We operate under a quality management system certified to ISO9001, ISO14001, OHSAS18001, and many other international standards (HACCP, TL900, QS9000, SA8000, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, etc.). Our team of engineers and technicians ensures that every girth gear meets the most demanding requirements.
We understand that a rotary kiln girth gear is a major investment. That’s why we provide a 1-year warranty and a Mill Test Report with every shipment, along with 100% inspection for gear accuracy. Our main markets span 15+ regions, including Europe, America, the Middle East, and Southeast Asia, reflecting the trust our global partners place in us.
Contact us today for a quote or technical consultation. We are ready to deliver a reliable, high-performance girth gear that keeps your rotary kiln running smoothly.
Frequently Asked Questions (FAQ)
Q1: What materials are used for the girth gear?
A: We typically use alloy steel grades like 42CrMo, 35CrMo, or 40Cr. Other materials are available upon request based on your application.
Q2: How do you ensure the gear accuracy?
A: Each gear is 100% inspected after machining using coordinate measuring machines (CMM), gear testers, and runout gauges. A Mill Test Report with detailed results is provided.
Q3: Can you customize the gear to fit my existing rotary kiln?
A: Yes, we can customize the module, number of teeth, inner bore, keyway, and mounting holes. Please provide your original gear drawings or measurements.
Q4: What is the typical lead time?
A: For standard sizes, lead time is 30–45 days. For custom designs, it may be 45–60 days depending on complexity. We can expedite for urgent orders.
Q5: Do you provide installation guidance?
A: Yes, we offer technical support and installation instructions. On-site supervision is available upon request at an additional cost.
Q6: Is the warranty valid for international customers?
A: Yes, the 1-year warranty covers manufacturing defects worldwide. We will replace or repair any defective gear free of charge.
Q7: What certifications does your factory hold?
A: Our factory is certified with ISO9001, ISO14001, OHSAS18001, and many other standards (HACCP, TL900, QS9000, etc.), ensuring consistent quality and environmental responsibility.
Q8: How do you pack the girth gear for export?
A: We use wooden crates with steel reinforcement, rust-proof coating, and proper cushioning. The gear is also protected with plastic wrap and desiccant bags for moisture control.
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