Pneumatic seal has the characteristics of simple structure, but requires a certain pressure of the gas supply, so the consumption of compressed air larger, and the gas pressure than the pressure of the sealing medium 0.03 ~ 0.05Mpa. Pneumatic seal is not limited by speed and temperature. It is usually used for sealing of rotary machinery equipment with little difference in pressure. It is also used for sealing of liquid medium and can also be used for gas medium seal, such as to prevent leakage of lubricating oil in bearing chamber. Sometimes it can be used in combination with labyrinth seals or spiral seals.
Product Name | EU PU Plastic Pneumatic |
Working Speed | ≤1m/s |
Working | -35ºC~+80ºC |
Hardness | 93 ± 2A Shore |
Working Pressure | ≤1.6MPa |
Product Advantages | 1. No danger of corrosion 2. No dust corners 3. Low friction values and high length of operation 4. Suitable for use in dry as well as oil -free air after initial assembly lubrication |

Stick to the purpose of providing you with a complete set of hydraulic system solutions.KOLBEN HYDRAULIC has focused on rubber plastic engineering and manufacturing for more than 20 years, Providing sealing solutions and precision rubber parts for our customers, to improve the product quality and performance.



A: We accept T/T 50% deposit and 50% balance against copy of B/L or L/C at sight, West Union,VISA,Paypal is also accepted.
Q 2. What is the normal lead time for product orders?
A: Generally it is 1-2 days if the goods are in stock. or it is 5-10 days if the goods are not in stock, it is according to quantity.
Q 3. What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.
Q 4. Could you please tell us the month capacity of your products ?
A: It depends on which model, we produce more than 2500 tons rubber materials per month.
Q 5. what kind of certificates you have ?
A1: We have been ISO9001:2008 and ISO14001:2004 certified by SGS since 2015.
A2: We have various rubber compounds approved by ROHS and REACH.
Q6: How to check the quality of the bulk order?
A1: We provide preproduction samples before mass production for all customers if needed.
A2: We accept third party inspection such as TUV, INTERTEK, BV, etc.
Q7: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, FPM(FKM), NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.

If you have any other question, please don't hesitate to contact us,thanks!