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At Henan San Kuang Machinery Technology Co., Ltd., we specialize in delivering precision-engineered solutions for the food processing industry. With over a decade of manufacturing experience, our Custom Coupling Manufacturing for Food Processing Equipment is designed to meet the highest standards of hygiene and operational efficiency. Founded in 2014 and operating from a 10,000–30,000 square meter facility, we have exported to over 50 countries, ensuring that every coupling we produce combines robust performance with easy-clean sanitary design. Our couplings are built to withstand rigorous cleaning protocols while maintaining product integrity, making them an ideal choice for processors who demand reliability and compliance.
The core of our coupling lies in its hygienic design — every surface is polished to a mirror finish (Ra ≤ 0.8 μm), eliminating crevices where bacteria could harbor. The smooth, crevice-free construction ensures that CIP (Clean-in-Place) and SIP (Sterilize-in-Place) systems can effectively clean the coupling without disassembly, reducing downtime and labor costs. Available in stainless steel 304 or 316L, our couplings are corrosion-resistant and compatible with acidic, alkaline, and high-temperature cleaning agents. Customization options include various connection types (clamp, threaded, flanged, or weld-on), sizes from 1/2" to 12", and special configurations to match your existing equipment.
| Parameter | Specification |
| Material | AISI 304 / 316L (food-grade) |
| Surface Roughness | Ra ≤ 0.4 μm (optional) / Ra ≤ 0.8 μm (standard) |
| Working Pressure | Up to 10 bar (depends on size and connection) |
| Temperature Range | -20°C to +150°C (higher on request) |
| Certification Compliance | HACCP, ISO9001, QS9000, SA8000, OHSAS18001 |
| Customization Lead Time | 15–25 working days (sample available) |
Key Features & Benefits
- Hygienic Design: No dead ends or sharp corners; all internal radii ≥ 3 mm to prevent particle accumulation and biofilm formation.
- Easy to Clean: Compatible with CIP/SIP systems; reduces cleaning time by up to 40% compared to conventional couplings.
- Custom Manufacturing: We offer complete design flexibility — from bore diameter, overall length, special threads, to unique sealing profiles (EPDM, silicone, PTFE).
- Durability: Made from high-grade stainless steel with electropolishing option; resistant to corrosion, pitting, and stress cracking.
- Leak-proof Sealing: Precision machined sealing surfaces ensure a tight, reliable connection even under thermal cycling.
- Full Traceability: Each coupling is laser-marked with batch number and material grade for quality assurance.
- Compliance Ready: Our couplings meet FDA, EHEDG, and 3-A sanitary standards (certificates available upon request).
For food processing equipment such as transfer pumps, heat exchangers, mixers, and filling lines, our couplings provide a seamless solution that enhances production efficiency and product safety. The ability to disassemble and reassemble quickly without tools further simplifies maintenance, saving your team valuable time. Whether you need a standard coupling or a fully custom design, our engineering team works closely with you to ensure every specification is met.
Backed by our strong manufacturing capability — a factory area of 10,000–30,000 m², a dedicated team of 51–100 skilled workers, and an annual export value exceeding US$2.5 million — we have successfully supplied couplings to clients in North America, Europe, Southeast Asia, and the Middle East. Our products are shipped from major ports including Shanghai, Qingdao, and Tianjin, ensuring timely delivery. With certifications ranging from ISO9001 and HACCP to OHSAS18001 and SA8000, we are committed to quality, safety, and social responsibility. Choose Henan San Kuang as your trusted partner for custom coupling manufacturing — contact us today to discuss your project requirements or request a sample.
Frequently Asked Questions (FAQ)
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Q: What materials are available for your hygienic couplings?
A: We primarily use AISI 304 and 316L stainless steel, both food-grade and suitable for most food processing environments. Other alloys like 316Ti or duplex can be provided upon request. -
Q: Can you customize the coupling dimensions to fit my existing equipment?
A: Absolutely. We offer full custom manufacturing — including inner and outer diameters, length, thread type, and sealing groove design. Send us your drawings or performance requirements, and our engineers will provide a tailored solution. -
Q: What is the typical lead time for custom orders?
A: Standard custom orders take 15–25 working days. For urgent projects, we can expedite to 10–12 working days. Sample production is usually faster. -
Q: Do you provide certificates for food safety compliance?
A: Yes. We hold HACCP, ISO9001, QS9000, and other certifications. We can also provide material test reports (MTR) and surface finish inspection reports upon request. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is flexible. For custom couplings, we typically require a minimum of 10 pieces per design. However, we can discuss lower quantities for prototyping or small-scale trials. -
Q: How do you ensure the couplings are easy to clean?
A: Our couplings feature a polished interior surface (Ra ≤ 0.8 μm standard, optional Ra ≤ 0.4 μm), no dead spaces, and smooth transitions. This design allows CIP/SIP fluids to fully contact all surfaces, eliminating residue buildup. -
Q: Can you supply couplings with specialized seals for high-temperature sterilization?
A: Yes. We offer a range of seal materials including EPDM, silicone, FKM (Viton), and PTFE. Please specify your temperature and chemical resistance requirements.
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