Piston Seals
Piston seals are dynamic sealing elements used in hydraulic and pneumatic cylinders to prevent fluid leakage across the piston, maintain system pressure, and ensure efficient cylinder performance. 3D Seals offers standard and custom piston seals manufactured from high-performance polyurethane, elastomer, and thermoplastic materials.
Piston Seal Profiles
- Technical Specification
- Material Details
- Applications
| Parameter | Details |
|---|---|
| Types | Single-acting and double-acting |
| Pressure | Up to 700 bar (design dependent) |
| Speed | Up to 1.5 m/s |
| Temperature | -40°C to +260°C (material dependent) |
| Sizes | Standard and custom dimensions |
| Media | Hydraulic oils, water-glycol fluids, air, and biodegradable fluids |
| Parameter | Details |
|---|---|
| Polyurethane (PU) | High wear and extrusion resistance |
| Elastomers | NBR, HNBR, FKM, EPDM |
| Thermoplastics | PTFE, filled PTFE, PEEK, POM, PA |
| Hydraulic cylinders in presses, loaders, excavators, and industrial machinery. | |
| Pneumatic cylinders in automation systems. | |
| Mobile hydraulics and off-highway equipment. | |
| Construction and agricultural machinery. | |
| Material handling systems |
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Frequently Asked Questions
A piston seal is a dynamic seal installed on the piston to prevent fluid or air from leaking across the piston inside a cylinder.
They are commonly used in hydraulic and pneumatic cylinders across industrial, mobile, and automation applications.
Polyurethane is ideal for high wear applications, while PTFE-based materials provide low friction and excellent chemical resistance.
They help maintain pressure, improve actuator efficiency, and support reliable cylinder movement.
Yes, provided the seal profile and material are selected for the pressure, speed, and media involved.
Yes, piston seals are available in both standard and custom dimensions.
