PRODUCTS PRODUCTS
  • Fluorine rubber O-ring

    Referred to as FKM or VT O-ring, it has very good oil resistance, high temperature resistance, corrosion resistance, aging resistance and other excellent characteristics.

  • Butadiene O-ring

    Referred to as NBR O-ring, it is a synthetic rubber O-ring made by copolymerization of butadiene and acrylonitrile. It has excellent wear resistance, air tightness and oil resistance.

  • Silicone O-ring

    Referred to as SL ring, it has good electrical insulation, high temperature resistance, non-toxic and tasteless, excellent cold and heat resistance, and antistatic properties.

  • Coated O-ring

    Coated O-ring is a kind of O-ring that shows good non-stick, sliding and moisture resistance after spraying on the surface of rubber O-ring.

  • Rubber sealed loop

    The rubber seal ring can be divided into fluorine rubber, silicon rubber, nitrile rubber, neoprene, EPDM, polytetrafluoroethylene, etc.

  • O-ring

    The English name of O-rings is O-rings, which is a round (O-shaped) cross-section rubber sealing ring, which is generally installed in a groove with a rectangular cross-section on the inner or outer circle for sealing.

  • Coated O-ring

    It is a seal composed of a relatively thick inner core made of relatively thick silicone rubber or fluorine rubber and a relatively thin combination of various outer covering materials such as PTFE/FEP/PFA

ABOUT ZHONGGAO ABOUT ZHONGGAO
9000㎡ Currently has over 9000 square meters of modern plant
300+ It has more than 300 employees

Ningbo ZhongGao Seal Technology Co., Ltd.which was specialized in research, production, sales, and distribution. Factory predecessor is located in Xiamen, Shenzhen, currently has over 9000 square meters of modern plant, with more than 300 employees, more than 40 senior technical staff .

Our main products are: O-ring, X-ring, Y-ring, D-rings, rubber flat washer, ED rings, rubber strips, rubber ball, all kinds of skeleton oil seal, glyd ring and stepseal, polyurethane oilseal, pneumatic seals and all kinds of rubber parts for the design according to customer request. 

EQUIPMENT PRODUCTION EQUIPMENT
  • Extruder It is used to test the tensile force of O-rings and to determine the characteristics of unvulcanized O-rings to find out the suitable rubber...
  • All inspection machine It is suitable for the appearance, size, mixing inspection and screening of many products such as gaskets and o-ring seals...
  • projector It is used to accurately measure the product size of O-rings and customized seals and observe whether their appearance is flawed.
  • One-time vulcanization molding machine Used to produce O-rings and customized seals for one-time vulcanization...
  • Mold library Mainly used to store O-rings, rubber seals and various customized abrasive tools...
  • Electro- thermostatic blast oven Mainly used to dry samples, and can also provide the temperature environment required for the experiment
OUR ADVANTAGE OUR ADVANTAGE
CERTIFICATION COMPANY CERTIFICATION
  • FDA is the abbreviation of Food and Drug Administration, one of the executive agencies established by the US government in the Department of Health and Human Services and the Department of Public Health

  • The REACH Directive is the English abbreviation of "Chemical Registration, Evaluation, Authorization and Restriction", established by the European Union

  • RoHS is a mandatory standard established by EU legislation. Its full name is the "Directive on Restricting the Use of Certain Hazardous Components in Electrical and Electronic Equipment

  • WRAS certification refers to the Water Regulation Advisory Program,WRAS is a certification for drinking water safety in the UK

  • KTW (German Drinking Water Industry Non-metallic Components Testing and Testing Approval) represents the drinking water system of the German Federal Ministry of Health

  • WATERMARK certification is a certification scheme for plumbing and drainage products managed by the Australian Building Code Board ABCB.

  • ISO9000 does not refer to a standard, but a collective term for a group of standards. "ISO9000 family standards" refers to all international standards developed by ISO/TC176

  • NSF certification is an independent, non-profit non-governmental organization established in 1944

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