China factory spot direct sale Nitrile rubber o-ring 80 shore blue NBR O rings Buna N
Ozone & UV
Steam & Hot Water
FOOD GRADE CT
Machine Tool Equipment
Rubber Ring Series
Choose the Right Material
In fact, rubber raw materials include NBR,HNBR,EPDM,FKM,Silicone，and Silicone（food grade），etc. Before determining the customization, we need to determine which rubber raw material to use. The properties and applicable scenarios of the raw materials may be very different.
VITON(FKM)Working temperature: -20℃~200℃ Performance :High temperature resistance, chemical resistance, suitable for polar solvents. Application range: Often used in high temperature, chemical corrosion, oily environment, in metallurgy, chemical industry, automotive engineering, electric power and other industries.
EPDMWorking temperature: -50℃~150℃ Performance : Resistant to most oils and solvents (except ketones and esters). Application range: It is often used in the working environment that requires chemical corrosion resistance and oil resistance. It is widely used in the fields of metallurgy, chemical industry and automobile.NBRWorking temperature: -40℃~120℃ Performance : Excellent oil resistance, water resistance, abrasion resistance, deformation resistance, but not suitable for polar solvents. Application range: Commonly used in fuel tanks, lubricating oil tanks, grease, silicone oil glycol series, used in oil, hydraulic leak-proof systems, etc. Silicone(VMQ)Working temperature: -70℃~220℃ Performance : Environmental protection, non-toxic, good elasticity, good electrical insulation properties, heat resistance, cold resistance, ozone resistance, atmospheric oxidation resistance; Poor tear resistance and friction resistance. Application range: Commonly used in household appliances, food machinery, daily necessities, toys and other industries that come into contact with people.HNBRWorking temperature: -40℃~150℃ Performance: Upgrade on the basis of the performance of cyanide rubber, with higher working temperature, better wear resistance, alkali resistance, acid resistance, ozone resistance, Weather resistance, etc. Applications: Water seals, oil seals, hydraulic systems, etc.PUWorking temperature: -40℃~90℃ Performance: Excellent wear resistance, good elasticity, high hardness, oil resistance and solvent resistance. Application range: widely used in machinery industry, automobile manufacturing, petroleum industry, mining industry, electrical and instrument industry, construction industry, medical and health and sports goods manufacturing and other fields. 10 years of rubber seal products manufacturer
26 years of rubber industry technical experience
More than 5000 sets of molds
Nearly 20,000 seal specifications
High-quality raw materialsExcellent workmanship Strict quality inspections
Workshop Testing Equipment
High-quality raw materials, standard production processes, and strict quality inspections, Longyin Sealing strictly complies with the standard quality management system to produce sealed products.
Certificate By seaDelivery time: about 25-45 days.By RailIf you are in Europe or Central Asia, railways are also a good choice.Delivery time: about 14-25 days.
By AirFor some small and light products, air freight is our main choice.
Delivery time: about 5-8days. FAQ Q1. What is the payment term?
A: We accept a T/T 30% deposit and a 70% balance of a current bill of lading or a letter of credit. West Union, VISA is also
Q2. What is the normal delivery time for product orders?
A: The average delivery time of the sample is 1-2 weeks. If the mold production is involved, the delivery cycle of the production
mold is 10 days, and the average production time after the sample is approved is 1-2 weeks.
Q3. What is your standard packaging?
A: All goods will be packed in PE bags and then packed in cartons and filled with trays. Special packaging methods are accepted
when needed, but charges may apply.
Q4. Which certificate do you have?
A1: Since 2012, we have passed ISO9001:2008: We have various rubber compounds certified by ROHS. 4 patents, still applying
for more patents.
Q5: How to check the quality of bulk orders?
A1: Our inspection procedures include, first inspection/patrol inspection/initial inspection/full inspection/shipment inspection.
A2: We provide quality certification to all customers before delivery, such as measurement reports, material data sheets, etc.
A3: We accept third party inspections such as SGS, TUV, INTERTEK, BV, etc.
Q6: How do I choose a raw compound for my application?
A: With years of experience in using a variety of materials, we can help you choose the material that best suits your needs,
keeping in mind the cost of materials.
Q7: Do you use any international standards for rubber products?
A: Yes, we mainly use the ASTM D2000 standard to define the quality of rubber materials according to ISO3302, ISO2768 and so on.
Q8: Can you provide materials of different colors?
A: Yes, we can produce custom Molded Rubber and silicone rubber products in different colors. Color codes are required when
Q9: From which side can you produce which materials?
A: NBR, EPDM, silicone, FKM, NEOPRENE (CR), NR, IIR, SBR, ACM, AEM, fluorosilicon (FVMQ), FFKM, liquid silica gel, and the like.
Q10: What other services does LongYin seal offer?
A: We have an internal mold function that can be maintained and maintained; we have a cold chamber for elastomer storage to extend
product life. Contact us if you need more details on O Ring Nbr. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Rubber O-rings、O Ring Nbr 80 Shore. If these products fail to match your need, please contact us and we would like to provide relevant information.
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