Founded in 2017, Tianjin Jinhang Technology Co., Ltd. is a technology-driven enterprise specializing in the R&D, production, and export of inflatable seals and customized rubber products. Leveraging over a decade of mature production experience and a global supply chain, the company has established a closed-loop system encompassing R&D, production, and export. Its products are sold to over 100 countries and regions worldwide, serving more than 500 internationally renowned companies. With an annual production capacity of tens of thousands of units and a stable delivery cycle of 7-15 days, the company maintains a leading position in the industry thanks to its dual core advantages of "military-grade quality control + ultra-fast delivery."
Our core product—military-grade inflatable sealing rings—can be customized to meet specific customer needs. They withstand a wide temperature range of -60℃ to 300℃, operating stably for over 200,000 inflation/deflation cycles, and have a pressure resistance ranging from 0.1 to 2 MPa. Certified by ISO9001 quality management system, our rings achieve zero leakage after inflation and return to their original shape within 3 seconds of deflation. Suitable for high-sealing applications in aerospace, high-speed rail, wind tunnel testing, semiconductor cleanrooms, precision medical equipment cavities, and automated production lines, our products have been successfully applied in key national projects such as the C919 large passenger aircraft door seals, high-speed rail vacuum toilet systems, and semiconductor lithography machine air-floating platforms.
On the production side, we have a professional inflatable sealing component manufacturing team and specialized equipment for producing non-standard inflatable sealing components. Our inflatable sealing component production line is based on "military-grade quality control + intelligent manufacturing," establishing a fully digitalized control system from raw materials to finished products.
With its superior product performance and rapid customer service response, Tianjin Jinhang has won widespread acclaim in the global market, boasting a customer repurchase rate exceeding 85% and being recognized as one of the "Top Ten Export Enterprises in China's Rubber Products Industry" for three consecutive years. Looking ahead, the company will continue to focus on the high-end sealing field, driving industrial upgrading through technological innovation to provide global customers with safer, more reliable, and smarter sealing solutions.
