About Us

JNS: Precision Sealing, Reliable Motion

– Engineered for Gas Springs & Dampers

Ningguo Jnsseals Sealing Technology Co., Ltd. is dedicated to gas spring and damper sealing technologies, including high-quality O-rings. Since 2019, we have been delivering reliable, durable, and cost-effective sealing solutions to the automotive, furniture, home appliance, medical equipment, and construction industries. Whether facing extreme wear, high temperatures, or demanding long-life requirements, JNS is built to perform.

We believe that a great seal is not just a component—it's a promise. With automated smart manufacturing, eco-friendly processes, and rigorous quality control, JNS products excel in sealing performance, durability, and value. Choose JNS for stability, safety, and trust that lasts.

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Ningguo Jnsseals Sealing Technology Co., Ltd.
Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd.
Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd. Ningguo Jnsseals Sealing Technology Co., Ltd.
Tailored For
Market And Application
Automotive Industry
  • High-temperature and oil resistance: In high-temperature, high-oil environments such as engines and transmissions, rubber rings maintain long-term elasticity and prevent fluid leakage, ensuring stable powertrain operation.

  • Vibration-resistant sealing: Withstand continuous vibration and impact during vehicle operation, maintaining sealing integrity without loosening or failure.

  • Wide temperature range adaptability: From severe winter cold to summer heat, rubber rings perform consistently, ensuring safe vehicle operation under various climatic conditions.

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Furniture & Home Appliances
  • Silent cushioning: In gas spring lift chairs, folding mechanisms, washing machine dampers, compressor vibration isolators, and similar applications, rubber rings provide cushioning and noise reduction, improving user comfort and experience.

  • Waterproof and leak-proof: In washing machines, dishwashers, water purifiers, and other appliances, rubber rings effectively prevent water and detergent leakage, protecting electrical safety.

  • Temperature and aging resistance: Rubber rings in refrigerators, air conditioners, and other refrigeration equipment withstand low temperatures and refrigerant corrosion without hardening or cracking over long-term use; rubber rings in furniture components are also wear-resistant and durable, extending product life.

  • Aesthetically friendly: Rubber ring colors can be customized to coordinate with furniture or appliance design, combining functionality with appearance.

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Medical Equipment
  • Good biocompatibility: Made of medical-grade silicone and other materials, non-toxic and non-irritating, suitable for safe contact with human tissue or medical fluids.

  • Sterilization resistance: Withstand common medical sterilization methods such as high-temperature steam, ethylene oxide, and gamma radiation without deformation or premature aging.

  • High cleanliness, no leachable substances: Materials undergo purification treatment to ensure no harmful substances are released into the medium, ensuring patient safety.

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Aerospace
  • Extreme environment adaptability: Under extreme conditions such as high temperature, low temperature, vacuum, and radiation, special rubber rings maintain sealing performance, ensuring aircraft safety.

  • Low outgassing properties: Using low-outgassing materials to prevent volatile contaminants from affecting precision instruments or optical equipment.

  • Long-life, maintenance-free: Aerospace equipment requires long maintenance intervals; rubber rings offer excellent aging resistance and compression set resistance.

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Machinery Manufacturing
  • High-pressure sealing capability: In hydraulic systems, pneumatic systems, and high-pressure pipelines, rubber rings withstand high-pressure fluctuations and prevent medium leakage.

  • Long wear-resistant life: For machinery with frequent reciprocating motion, wear-resistant rubber materials significantly extend equipment maintenance intervals.

  • Wide media compatibility: Resistant to hydraulic oil, lubricating oil, coolant, water, air, and various industrial media, offering broad application range.

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Construction Industry
  • Curtain wall system sealing: In glass curtain walls, stone curtain walls, and similar structures, rubber rings accommodate thermal expansion and contraction caused by temperature changes, maintaining long-term sealing stability and preventing moisture ingress.

  • HVAC systems: At ventilation duct and air conditioning pipe connections, rubber rings prevent leakage of hot or cold air, improving energy efficiency while providing vibration damping and noise reduction.

  • Pipe connection sealing: In building water supply & drainage and fire protection piping systems, rubber rings (such as O-rings and gaskets) are used for fitting interfaces, offering easy installation, pressure resistance, durability, and effective leak prevention.

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Projects
JNS · Four Core Strengths
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  • Sustainability
    Sustainability

    JNS prioritizes eco-friendly technology, adopting environmentally compliant production processes and materials. We offer low-pollution, recyclable sealing products to help customers achieve their green supply chain goals.

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  • Built to Produce
    Built to Produce

    JNS prioritizes eco-friendly technology, adopting environmentally compliant production processes and materials. We offer low-pollution, recyclable sealing products to help customers achieve their green supply chain goals.

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  • Made to Last
    Made to Last

    JNS seals are manufactured with high-quality materials, offering excellent wear and heat resistance. Precision-engineered to match various gas spring and damper models, they effectively extend equipment service life.

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  • Works Where You Need
    Works Where You Need

    Our products are widely used in over ten industries, including automotive, furniture, medical equipment, home appliances, construction, aerospace, and industrial automation. We provide customized sealing solutions for different operating conditions.

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High Standard Factory
Made Right. Delivered On Time.
JNS operates a modern manufacturing base equipped with advanced automated production lines and a rigorous quality control system. From raw material inspection to finished product shipment, every process is precisely managed to ensure consistency and reliability. The factory is highly responsive, capable of flexibly meeting delivery requirements from small trial batches to large-volume orders. With an efficient supply chain and an experienced technical team, JNS delivers high quality, competitive pricing, and stable lead times to customers worldwide.
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Industry Insights & Updates
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