About Cylinder Seals
Rod wipers scrape dirt, dust, and moisture from the rod, preventing contamination inside your cylinder.
Rod seals maintain the pressure inside cylinders and prevent fluid from leaking out.
Wear rings guide the rod and piston to prevent uneven wear and optimize seal performance.
Head seals are a more reliable alternative to the standard O-ring/backup ring combination—they resist twisting and remain stable even in applications with fluctuating pressure.
Buffering seals protect hydraulic cylinders from pressure spikes and shock in high-pressure hydraulic applications.
Cushioning seals minimize wear and noise in air-powered cylinders by preventing the piston from slamming against the cylinder body.
Piston seals make a seal between their outside edge and the cylinder bore to prevent internal leaks.
High-Pressure Hydraulic Cylinder Buffering Seals
Rated for pressure up to 10,000 psi, these seals withstand the highest pressure of our buffering seals. Use in tandem with rod seals to protect the cylinder from pressure spikes and shock.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Rod Dia. | Dia. | Wd. | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Backup Ring Color | Each | |
Polyurethane Rubber with Nylon Plastic Backup Ring | ||||||||||
| 1/2" | 0.750" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 3/4" | 1.125" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1" | 1.375" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 1/8" | 1.500" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 1/4" | 1.625" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 3/8" | 1.750" | 0.206" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 1/2" | 2.000" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 3/4" | 2.250" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 1 7/8" | 2.375" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 2" | 2.500" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 2 1/2" | 3.000" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 2 3/4" | 3.250" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
| 3" | 3.500" | 0.275" | 1.6 | 10,000 | -65° to 250° | Durometer 90A (Hard) | Beige | Gray | 0000000 | 00000 |
High-Speed Hydraulic Cylinder Buffering Seals
PTFE gives these seals a slippery surface that facilitates rod speeds over seven times faster than our other buffering seals. Use them in tandem with rod seals to protect the cylinder from pressure spikes and shock.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | O-Ring | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Rod Dia. | Dia. | Wd. | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Hardness | Color | Each | |
Bronze-Filled PTFE Plastic with Buna-N Rubber O-Ring | |||||||||||
| 5/8" | 0.912" | 0.126" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 1" | 1.287" | 0.126" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/4" | 1.537" | 0.126" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/4" | 1.671" | 0.165" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 1/2" | 1.787" | 0.126" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 1 3/4" | 2.171" | 0.165" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 2" | 2.421" | 0.165" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 2" | 2.594" | 0.248" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 2 1/2" | 2.921" | 0.165" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 0000 |
| 2 1/2" | 3.094" | 0.248" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 00000 |
| 3" | 3.594" | 0.248" | 12 | 5,000 | -30° to 230° | Durometer 60D (Extra Hard) | Brown | Durometer 70A (Hard) | Black | 0000000 | 00000 |
Air-Powered Cylinder Cushioning Seals
Designed for use in air-powered cylinders, these seals prevent the piston from slamming against the cylinder body to minimize wear and noise.
Note: Maximum performance values cannot be achieved simultaneously; for example, speed is affected by pressure, temperature, and other operating conditions.
For technical drawings and 3-D models, click on a part number.
For Groove | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Rod Dia. | Dia. | Wd. | Max. Speed, ft./sec. | Max. Pressure, psi | Temp. Range, °F | Hardness | Color | Each | |
Buna-N Rubber | |||||||||
| 5/8" | 0.935" | 0.181" | 3 | 250 | -40° to 250° | Durometer 80A (Hard) | Black | 0000000 | 00000 |
| 3/4" | 1.060" | 0.181" | 3 | 250 | -40° to 250° | Durometer 80A (Hard) | Black | 0000000 | 0000 |
| 7/8" | 1.195" | 0.181" | 3 | 250 | -40° to 250° | Durometer 80A (Hard) | Black | 0000000 | 0000 |
| 1 1/4" | 1.568" | 0.181" | 3 | 250 | -40° to 250° | Durometer 80A (Hard) | Black | 0000000 | 0000 |
| 1 5/8" | 1.939" | 0.181" | 3 | 250 | -40° to 250° | Durometer 80A (Hard) | Black | 0000000 | 0000 |