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Help CenterHeavy-Duty Coupling With 3-Year Warranty, Free Technical Support, 45 Steel, Flexible Design
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Henan San Kuang Machinery Technology Co., Ltd. is a professional manufacturer specializing in heavy-duty industrial couplings. Our Heavy-Duty Coupling with 3-Year Warranty and Free Technical Support is engineered from premium 45# steel and features a flexible design that effectively compensates for shaft misalignment while withstanding extreme loads. With a factory spanning 10,000–30,000 square meters and over 50 experienced employees, we ensure every coupling meets rigorous quality standards. This product is ideal for demanding applications in mining, metallurgy, petrochemical, and power generation industries, offering exceptional durability and long service life.
Our coupling is designed to reduce maintenance downtime and protect connected equipment from vibration and shock loads. The flexible element absorbs angular, parallel, and axial misalignments, extending the life of bearings and seals. Whether you need a standard size or a custom bore, our engineering team provides tailored solutions with fast delivery. Backed by a 3-year warranty and free technical support, you can rely on this coupling for consistent performance in the harshest environments.
Key Features & Technical Specifications
- Material: High-quality 45# steel (quenched and tempered) for superior strength and wear resistance.
- Flexible Design: Elastomeric insert or flexible metal disc (optional) to accommodate misalignment up to 1.5° angular, 0.5 mm parallel, and 2 mm axial.
- High Torque Capacity: Suitable for heavy-duty applications with torque ratings from 100 Nm to 50,000 Nm (customizable).
- Low Maintenance: No lubrication required for most models, reducing operating costs.
- Corrosion Resistance: Available with surface treatments such as black oxide, phosphating, or hot-dip galvanizing.
- Easy Installation: Pre-assembled with keyway and set screws; clamp or taper lock options available.
- Wide Operating Temperature: -30°C to +120°C standard; high-temperature versions up to 250°C on request.
- Standard Compliance: Manufactured in accordance with ISO 9001 quality management system (certified).
| Parameter | Value |
|---|---|
| Material | 45# Steel (C45) |
| Warranty | 3 Years |
| Technical Support | Free lifetime |
| Max Torque | Up to 50,000 Nm (custom) |
| Misalignment Compensation | Angular: ±1.5°, Parallel: 0.5mm, Axial: 2mm |
| Operating Temperature | -30°C to +120°C |
| Hub Bore Range | 10mm – 200mm (customizable) |
Benefits for Your Business
- Reduced Downtime: The flexible design minimizes shock loads and vibration, protecting connected equipment and reducing unplanned maintenance.
- Cost Savings: With a 3-year warranty and free technical support, you avoid unexpected repair costs. The durable 45 steel construction ensures a long service life.
- Versatility: Suitable for pumps, compressors, conveyors, fans, and mixers in various industries. Custom bore sizes and keyway options fit existing shafts.
- Global Logistics: Shipped from major ports (Shanghai, Qingdao, Tianjin, Lianyungang) with fast delivery to North America, Europe, Asia, Africa, and Oceania.
- Quality Assurance: Our factory holds multiple certifications (ISO 9001, ISO 14000, OHSAS 18001, etc.), ensuring consistent product quality and environmental responsibility.
As a trusted manufacturer with an annual export value of US$2.5-5 million, Henan San Kuang has supplied couplings to customers across 30+ countries. Our engineering team provides free technical support to help you select the right coupling for your specific application. Whether you need a standard heavy-duty coupling or a fully customized solution, we are ready to assist.
Frequently Asked Questions (FAQ)
1. What is the maximum torque this coupling can handle?
Standard models support up to 50,000 Nm. For higher torque requirements, please contact our technical team for a custom design.
2. Can this coupling be used with stainless steel shafts?
Yes, the hub material is 45 steel, but we can provide stainless steel or other corrosion-resistant materials upon request. The coupling is compatible with stainless steel shafts.
3. How does the flexible design compensate for misalignment?
The coupling uses an elastomeric or metallic flexible element that deforms elastically to absorb angular, parallel, and axial misalignments, reducing stress on bearings and seals.
4. Is installation difficult?
No, the coupling comes pre-assembled with keyway and set screws. Detailed installation instructions and free technical support are provided. Typical installation takes less than 30 minutes.
5. What is the warranty coverage?
We offer a 3-year warranty covering material defects and workmanship. Free technical support is available for the entire life of the product. See our warranty policy for details.
6. Can I get a custom bore size or keyway?
Absolutely. We offer customization for bore diameter, keyway dimensions, and overall length. Lead time depends on complexity; usually 7-15 working days.
7. Are there any special maintenance requirements?
Standard couplings require no lubrication. For high-temperature or high-speed applications, periodic inspection of the flexible element is recommended. Our support team can provide a maintenance schedule.
8. How do I place an order for sample testing?
Contact our sales team with your shaft sizes and torque requirements. We can provide a sample unit with a 30% deposit. Shipping is arranged via major ports.
Why Choose Henan San Kuang Machinery?
Since our establishment in 2022, we have rapidly grown to serve diverse global markets. Our factory covers 10,000–30,000 m² and employs 51–100 skilled workers. We are certified under ISO 9001, ISO 14000, and other international standards, ensuring responsible manufacturing. With ports in Shanghai, Lianyungang, Qingdao, and Tianjin, we provide efficient logistics. Our heavy-duty couplings are already trusted by clients in North America, Europe, and Southeast Asia. Contact us today to discuss your project and benefit from our 3-year warranty and free technical support.
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