Xintong Cast Pipe (Guangdong) Co., Ltd. supplies robust Ductile Iron Collars – versatile connecting components designed for pipe repair, extension, and branch connections in municipal water networks, industrial pipelines, drainage systems, and water conservancy projects. Whether you need to join two pipe ends, restore a damaged section, or create a future access point, our collars deliver a fast, reliable, and long-lasting solution without requiring complex welding or special tools.

Built on Advanced Manufacturing

Our collars are produced using internationally advanced centrifugal casting technology and automated lines, backed by an annual capacity of 100,000 tons. Every collar complies with ISO 2531, EN 545, and GB/T 13295 standards. From high-purity pig iron sourcing to finished product inspection, we employ spectrometers, hydrostatic testing machines, and rigorous pressure/leakage tests to ensure zero defects. With five invention patents and certified processes, you get consistent dimensional accuracy, superior ductility, and exceptional corrosion resistance – even under high-pressure or seismic conditions.

Custom & OEM/ODM Capabilities for Global Partners

We are not just a supplier; we are your manufacturing partner. For B2B clients seeking wholesale, custom, or private-label solutions, we offer:

• Size & Configuration Flexibility: DN80 to DN2600, with custom collar lengths, wall thicknesses, and end types (plain, flanged, or grooved) to match your specific piping system.

• Special Coatings: Epoxy ceramic, polyurethane, or other anti-corrosion layers – ideal for aggressive soil, seawater, or high-purity water applications.

• OEM/ODM Services: Your branding, packaging, technical documentation, and even unique part numbers are fully supported.

• Bulk Wholesale: Competitive factory-direct pricing, low MOQ, and efficient logistics covering 23 Chinese provinces and export markets (Southeast Asia, Middle East, Africa).

Why Choose Our Collars?

• Quick Installation: Designed for straightforward on-site assembly, reducing labor costs and downtime.

• Full-Cycle Support: 24/7 pre-sales technical advice, installation guidance, and after-sales maintenance.

• Sustainable Manufacturing: Green production with waste heat recovery and water recycling – a responsible choice for your supply chain.

Partner with Xintong Cast Pipe for reliable, customizable ductile iron collars. Contact us today to share your drawings, request a quote, or start an OEM/ODM project. Together, we build the future with quality.