Black hydraulic cylinder oil seals piston rod TB TA rubber silicone oil seal

An oil seal, also known AS a shaft seal, is a device part used in machines to prevent fluids from overlapping the seams. The representative form of oil seal is TC oil seal, which is a double-lip oil seal with self-tightening spring completely covered by rubber.

Chongqing Longyin Sealing Technology Co., Ltd. was founded in 2012, specializing in the development, design and production of rubber sealing products. The company introduced with world universal standards and non-standards, is widely used in machinery, electronics, several imported high-precision equipment, Produced nearly 10,000 kinds of rubber seals been certified by ISO9001: 2015 and ISO/TS16949:2009.automotive, medical, petroleum, chemical, instrumentation, aerospace, and other fields.has

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
accepted.

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
ordering.

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.