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Custom Molding Service Injection Molded Black Plastic Sealing Cap with Integrated Port

These black plastic sealing caps are precision-engineered using high-pressure injection molding, delivering a robust, leak-proof solution for fluid storage and transfer. Designed with an integrated center port and ribbed grip, they are ideal for laboratory, industrial, and waste management applications where secure containment and reliable fluid access are critical.
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  • YIXUN mold

  • 8480419090

These black plastic sealing caps are precision-engineered using high-pressure injection molding, delivering a robust, leak-proof solution for fluid storage and transfer. Designed with an integrated center port and ribbed grip, they are ideal for laboratory, industrial, and waste management applications where secure containment and reliable fluid access are critical.

 Key Features

  • Injection-Molded Durability: The one-piece injection molding process ensures uniform material density and structural integrity, eliminating weak points and ensuring long-term resistance to deformation and chemical exposure.

  • Ribbed Grip Design: The textured side walls provide enhanced friction for easy, tool-free tightening and removal, even when wearing gloves or handling wet surfaces.

  • Integrated Center Port: The raised central port enables seamless connection to tubing, needles, or other fluid accessories, supporting precise liquid dispensing, sampling, or venting.

  • Chemical-Resistant Material: Constructed from high-grade PP plastic, these caps resist corrosion from acids, bases, and organic solvents, while maintaining an airtight seal to prevent leaks and contamination.

 Specifications

Parameter Details
Material High-strength polypropylene (PP)
Manufacturing Process High-pressure injection molding
Compatibility Fits standard 50–100 mm neck containers
Operating Temperature -10°C to 100°C
Color Matte black
Seal Type Integrated O-ring groove (O-ring sold separately)

 Ideal Use Cases

  • Laboratory Research: Sealing reagent bottles, media reservoirs, and waste collection containers in cell culture and analytical workflows.

  • Industrial Fluid Handling: Securing chemical storage tanks and process vessels to prevent spills and maintain purity.

  • Waste Management: Providing a safe, leak-proof seal for hazardous waste collection bottles.

  • Biopharmaceutical Production: Supporting sterile fluid transfer in bioprocessing applications.


Why Choose Our Sealing Caps?
Our injection-molded caps offer the perfect combination of precision, durability, and chemical resistance. The seamless construction and integrated port design eliminate contamination risks, making them a trusted choice for critical fluid handling applications where reliability cannot be compromised.

 Black Plastic Sealing Cap

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Yixun is the China first generation mold maker, specialize in mold and moulding, provide one-stop plastic manufacturing service, feature in building medical and healthcare device tooling.
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