Top 10 Rubber Cap Manufacturers in China 2026

Haining Chaoyue Seals Co., Ltd located in Haining City, Zhejiang Province, which near the city Shanghai(120KM)and Hangzhou(90KM)). Haining Chaoyue Seals Co., Ltd. manily engages in the field of providing the Nonstandard Custom made Molded Rubber. We are small-sized enterprises in Zhejiang China(1200square meter, 20 people). Based on the idea of developing the level of national rubber industry. Our Advantage: We provide service of rubber manufacturing technology consultation and product R & D (OEM & ODM)

A. Cheap mold fee

B. Rubber molding for kind of size / shape, possible to make.

C. Custom personalise logo accept

D. Over 10000 kind of Custom Molded Rubber establishment and the consummation.

E. Various materials: Silicone, EPDM, NBR, FKM (Viton), HNBR, NR, Neoprene (CR), SBR, MPU, etc

F. Different hardness: 10 to 90 Shore A

G. Various colors: translucent, black, white, blue, green, red, etc.

H. Our components and materials are used: sealing, insulation, silencers, protect,etc

Shanghai Rubber Products Co., Ltd.
Core Products: NBR / FKM / Silicone Rubber Sealing Caps, High-Pressure Rubber Caps, Automotive Wire Harness Caps, Medical-Grade Rubber Plugs
Core Strengths: Industry leader in high-end sealing caps; annual production capacity of over 50 million units; ISO9001/TS16949/FDA/REACH certified; 18% market share in the high-end Automotive, Aerospace, and Medical sectors.

Zhongce Rubber Group Co., Ltd.
Core Products: Industrial Rubber Protective Caps, Pipe End Caps, Construction Machinery Dust Caps, Heavy Equipment Sealing Caps
Core Strengths: Global leader in rubber products; fully integrated industrial chain; annual production capacity exceeding 100 million units; serving Construction Machinery, Piping, and Heavy Machinery sectors; exporting to over 80 countries worldwide.

Cixi Shirong Rubber Co., Ltd.
Core Products: Custom Rubber Caps, RoHS/FDA Food-Grade Rubber Caps, Appliance/Electronics Dust Caps, Precision Instrument Sealing Caps
Core Strengths: Benchmark for customization capabilities; 2,500 m² facility with a team of 100 employees; fully certified (RoHS/REACH/FDA); daily production capacity exceeding 100,000 units; rapid delivery for small-batch orders.

Qingdao Rubber & Plastics Co., Ltd.
Core Products: Oil-Resistant / Acid & Alkali-Resistant Rubber Caps, Chemical Equipment Sealing Caps, Marine Pipe Plugs, Offshore Engineering Protective Caps
Core Strengths: Leading manufacturer of industrial rubber caps in Northern China; 60 years of manufacturing experience; API and Classification Society certified; designed for harsh marine and chemical environments; annual production capacity of 80 million units.

Ningbo Tiansheng Sealing Parts Co., Ltd.
Core Products: Nuclear Power / High-Pressure Rubber Caps, High-Temperature Resistant Rubber Plugs, Military-Grade Sealing Caps, Custom Caps for Specialized Applications
Core Strengths: Specialized in High-Pressure and Nuclear Power applications; recognized as a National-Level "Specialized, Refined, and Innovative" Enterprise; proprietary high-temperature resistant formula (up to 250°C); serving the Nuclear Power, Military, and High-Pressure Equipment sectors; precision tolerance up to IT6 grade.

Hebei Taikai Rubber & Plastic Co., Ltd.
Core Products: General-purpose rubber caps, plumbing pipe caps, agricultural machinery dust caps, economical industrial protective caps.
Core Strengths: Unbeatable value for money; 20 automated production lines; annual capacity of 120 million units; low costs and rapid delivery; serving the plumbing, agricultural machinery, and general industrial sectors across Northern China.

Guangdong Tiancheng Sealing Parts Co., Ltd.
Core Products: Silicone/Fluororubber caps, electronic waterproofing caps, automotive connector caps, new energy battery sealing caps.
Core Strengths: A leading supplier to the electronics and automotive sectors in Southern China; TS16949 and IP68 waterproofing certified; compatible with new energy vehicles and 3C electronics; annual capacity of 70 million units.

Jiangsu Baose Special Materials Co., Ltd.
Core Products: Low-temperature/chemical-resistant rubber caps, semiconductor equipment sealing caps, laboratory rubber stoppers, cleanroom-specific caps.
Core Strengths: Specialized for semiconductor and laboratory applications; resistant to ultra-low temperatures down to -60°C; cleanroom-grade manufacturing; serving the semiconductor, biopharmaceutical, and laboratory sectors; 80% customization rate.

Shenyang Zhongye Sealing Parts Manufacturing Co., Ltd.
Core Products: Fluororubber/Perfluoroether rubber caps, military-grade sealing caps, aerospace equipment protective caps, caps for extreme operating conditions.
Core Strengths: Supplier to the military and aerospace sectors; proprietary special rubber formulations; resistant to high temperatures (up to 300°C) and strong corrosion; serving the military, aviation, and aerospace industries; high-precision customization for small-batch orders.
Positioning: Military & Defense, Aerospace, Extreme Operating Conditions, Special Materials, High-Precision Customization.