Hydraulic Rod Seal

Kaflon hydraulic rod seals are designed to prevent fluid leakage from inside the hydraulic cylinder while the rod is in reciprocating motion.
They play a critical role in maintaining system pressure, operational efficiency, and long service life of hydraulic equipment.

Engineered using advanced PTFE compounds, elastomers, and spring-energized designs, Kaflon rod seals deliver reliable sealing performance under high pressure, dynamic motion, and demanding environmental conditions.

What Is a Hydraulic Rod Seal?

A hydraulic rod seal is installed in the cylinder head and seals against the reciprocating piston rod.
Its primary function is to retain hydraulic fluid inside the cylinder while preventing external contamination from entering the system.

Rod seals operate under:

• High system pressure
• Continuous dynamic movement
• Variable speeds and temperatures

Kaflon Hydraulic Rod Seal Types

PTFE Rod Seals

 

• Low friction coefficient
• Excellent wear resistance
• Suitable for high-speed and high-pressure applications
• Long service life with minimal stick-slip

Dust seal

 

 

• Protects Against Contamination: Blocks dirt and debris from entering machinery.
• Low Friction: Ensures smooth movement and reduces wear.
• Easy to Install: Quick installation and replacement.
• Durable: Withstands harsh environments.
• Wide Temperature Range: Effective in varying temperatures.
• Flexible: Accommodates dynamic motion.

Elastomer Rod Seals (U-Cup Design)

 

• Good elasticity and sealing response
• Cost-effective for medium-pressure applications
• Compatible with various hydraulic fluid

Material Options & Sealing Compounds

Kaflon rod seals are manufactured using carefully selected materials to meet different operating conditions:

All materials are optimized to work as a complete sealing system, not as standalone components.