Cylinder Seals

• Buffer seals
• head seals
• head wear rings
• metal bearing
• piston seals
• piston wear rings
• press-in wiper seals
• snap-in wiper seals
• snubber seals
• u-cup rod seals

TYPE SEALS:

Press-In Wiper Seals

Snap-In Wiper Seals

Snubber Seals

U-Cup Rod Seals

Buffer Seals

Head Seals

Head Wear Rings

Metal Bearing Head Wear Rings

Piston Seals

Piston Wear Rings

Better compression set. Compression set measures a material’s ability to rebound to its original shape after compression. Cat urethane material offers up to 25% improvement in compression set capabilities over previous materials, without sacrificing tensile strength or seal hardness levels.

Wider temperature application. Cat hydraulic cylinder rod seals can work in a wider range of operating temperatures than previous designs, without seal degradation.

FEATURES AND BENEFITS

FEATURES	BENEFITS
Double lip wiper seal design	Provides optimum contact with the rod to keep out contaminants. In addition, vents molded into the radius of the internal lip help prevent these seals from unseating themselves during operation
Cat® U-Cup seals also feature a double lip	This design ensures uniform contact of the oil-sealing lip, helping deliver top performance and wear life. Cat U-cup seals work together with the buffer seals to optimize sealing performance while minimizing pressure buildup.
Pressure activated buffer seals	These Cat seals exert pressure on the rod, only when necessary. And because vents provide a passage for high pressure to be relieved back into the cylinder, Cat buffer seals minimize pressure buildup, reducing U-cup failure.
Backed by Cat® Parts warranty	Cat wiper, U-cup and buffer seals feature design improvements that enhance performance, reduce leakage and increase seal life.