Rubber Sealing Parts

Rubber Sealing Parts are among the most widely used functional components in vehicles. They are found in the engine, transmission, A/C system, cooling system, braking system, and other assemblies. Their basic function is to prevent fluid leakage, block dust and moisture ingress, and maintain stable system pressure. They are the foundation that keeps each system running properly. A typical vehicle uses dozens of different sealing parts in various sizes and materials. Though small, any single seal failure can cause system malfunction or even complete vehicle breakdown. In simple terms, they keep the engine from leaking oil, the A/C from losing refrigerant, and the cooling system from overheating.

Anhui Denaifu has over 22 years of experience manufacturing Rubber Sealing Parts. Our 127,000+ square meter facility employs over 80 people. Our products cover 80% of vehicle brands in China through tier-1 suppliers.

Our Rubber Sealing Parts include engine oil seals, transmission seals, A/C system seals, cooling system gaskets, valve cover gaskets, and many more. We select materials based on operating conditions: NBR, FKM, VMQ, ACM, and others. We have an independent R&D team and dedicated quality staff. We strictly follow IATF16949. Our 30+ production machines include vacuum vulcanizers, injection vulcanizers, and internal mixers. Monthly capacity exceeds 4 million pieces. Every batch is 100% inspected before shipping. We also accept third-party inspections. We hold 14 utility model patents and ISO14001 certification.

Anhui Denaifu supports OEM and ODM services. We can reverse-engineer and custom-produce based on customer drawings or samples. Standard product delivery takes 30 working days. Custom products require material selection, mold development, and sample validation, so delivery takes 60 to 90 working days. The minimum order is RMB 50,000.

Standard product payment: 70% prepayment starts production, 20% when goods reach the port, and 10% as quality guarantee, payable within 30 days after receipt. If goods are damaged in transit, we replace them at no cost.

Pre-sales: our engineering team participates in sealing solution review and material selection advice. In-sales: we strictly control vulcanization processes and quality inspection. After-sales: technical staff handle customer quality feedback and process improvement needs. All rubber sealing parts meet required oil resistance, temperature resistance, pressure resistance, and durability standards. Warranty terms follow customer operating environment requirements. We are committed to providing high-reliability, long-life rubber sealing solutions.

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