Sealing Excellence, Securing Industry

CFKS PU PTFE Hydraulic Cylinder Piston Rod Oil Pneumatic Seal UN UPH DHS KDAS UNR UHR UTS Hydraulic Seals

Premium PU and PTFE Hydraulic Seals for piston rods and cylinders. Compatible with UN, UPH, DHS, KDAS, UNR, UHR, and UTS profiles, ideal for high-performance hydraulic and pneumatic applications.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type UN Oil Seal  Packing 1 pc per bag

 

🔹 Wide Range of PU/PTFE Hydraulic Seals for Piston Rod and Cylinder Applications
CFKS offers a comprehensive selection of hydraulic seals made from PU (Polyurethane) and PTFE (Polytetrafluoroethylene) to ensure optimal sealing performance in hydraulic cylinders and pneumatic systems. With standard and special profiles including UN, UPH, DHS, KDAS, UNR, UHR, and UTS, these seals provide superior resistance to wear, extrusion, and high-pressure environments, making them ideal for demanding industrial use.

 

🔹 PU and PTFE Sealing Solutions for Dynamic Applications
Our PU hydraulic seals offer exceptional elasticity, mechanical strength, and resilience, while PTFE seals provide low friction and excellent chemical resistance. Together, they ensure long-lasting operation in piston rod and cylinder sealing. Whether for mobile machinery, presses, or hydraulic tools, CFKS pneumatic and oil seals meet the highest performance standards in both OEM and aftermarket applications.

🔹 Designed for Reliability in High-Pressure Hydraulic Systems
Each seal type—from UN and UHR to KDAS and UTS—is engineered for specific movement types, pressure levels, and media compatibility. Our hydraulic cylinder oil seals minimize leakage, improve system efficiency, and extend component life. CFKS supports custom sizes and sealing materials to match your exact technical requirements for PU/PTFE dynamic seals.

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

 

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