Hydraulic Cylinder Polyurethane(PU) Seal

SWKS have own engineer,in addition to standard product,we also provide OEM service,we can produce according to customer requirement,include material,color and size. If you need the nonstandard seals, please contact us and send the drawings to us. We will produce it excellently based on your drawings and requirements.

Product Details

Hydraulic Cylinder Polyurethane(PU) Seal

Piston rod seal is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside. Leakage through the rod seal can reduce equipment performance, and also in extreme cases can cause environmental issue.

Particular attention should be paid to pair the rod seal and the wiper for the best sealing performance. If a less aggressive rod seal is paired with an aggressive wiper, the wiper can scrape off the microscopically thin film of oil that remains on the rod in microscopic surface imperfections during the return stroke, resulting in system leakage.

Polyurethane (PU) is a special material that offers the resilience of rubber combined with the toughness and durableness. It allows people to substitute rubber, plastic and metal with PU. Polyurethane can reduce factory maintenance and OEM product cost. Polyurethane has better abrasion and tear resistance than rubbers, and offering higher load bearing capacity.

Compared PU with plastic, polyurethane not only offers excellent impact resistance, but also offers excellent wear resistant and high tensile strength. Polyurethane have subsituted metals in sleeve bearings, wear plates, conveyor rollers, rollers and various other parts, with benefits such as weight reduction, noise abatement and wear improvements.


Hydraulic Seals



Our advantages

1.Low MOQ: It can meet your promotional business very well.

2.Good price:We produce most of components in our factory and factory direct sale,best quality and the price is lower 2% than other suppliers.

3.Good Quality:We have strict quality control system .Good reputation in the market.

4.OEM Accepted:We can produce according to customer requirement.

5.Good after-sales Service:We provide 1-3 years warranty after goods arrive,and deal with your complain within 48 hours.

6.Fast & Cheap Delivery:We have big discount from forwarder (Long Contract).

7.Free samples can be sent for customer evaluation.


Quality control

1.There are more than 20 QC staff to control the quality of acquisition at the beginning of design

2. Every product will be 100% checked before shipping,we won’t let anything defective go.

quality control


We are your rubber seal storage. We have many sizes in stock.All of the o-ring,oil seal and hydraulic seal we have enough stocks. There is no need to pay additional mold cost. What you need to do is just to sell and to get money.Material includes NBR, FKM, Silicone, EPDM, HNBR, PU, SR.