Product Specification
Products Category | Hydraulic seals, Oil seals, O-Rings |
Material | PTFE, PU, NBR, FKM, PA, POM, Silicone, EPDM, FFKM, UPE, PEEK etc. |
Type | GSJ, GSF, SPGO, KZT, GSZ, GRS, GNS, WR, BRT, GST, TDI, DDKK, DAQ,SPGW, TPM, TC, VA, HBY, DHS, UNS, UHS, DFI, DFA, DFAI tec. |
Propeties | High temperature, low temperature, high pressure, low pressure,friction resistance |
Sizes | Standard and customize |
Medium | Hydraulic oil, anti-fire fluid, water, gas etc |
Application | excavators, loaders, graders, dump trucks, forklifts, bulldozers, scrapers, mining trucks, cranes, aerial vehicles, garbage transfer vehicle, sliding cars, agricultural machinery, logging equipment, etc. |
Doking Material Performance
| NBR | ACM | VMQ | HNBR | PTFE | FKM |
Wear Resistance | very good | moderate | moderate | moderate | good | very good |
High Temperature Resistance | moderate max 125C | good max 150C | very good max 225C | good max 150C | good max 260C | very good max 250C |
Low Temperature Resistance | -40C | -30C | -60C | -25C | -65C | -20C |
Oil Resistance | good | good | moderate | good | extremely good | extremely good |
Chemical Resistance | good | moderate | moderate | good | very good | good |

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!