Products
Rod Seals
Piston Seals
Symmetric Seals
Rotary Seals
Wiper Seals
Backup Seals
Double Faced Seals
Backup Rings and O-Rings for Hydraulic and Pneumatic Applications
Types of backup rings include:
Solid Rings
Durable, one-piece rings made from hard materials for robust support.
Split Rings
Designed with a split for easier installation without compromising performance.
Spiral Rings
Featuring a spiral or coil design to provide flexible yet strong backup.
Contoured Rings
Precisely shaped to match the seal profile, offering superior fit and protection.
Materials
Nitrile Rubber (NBR)
Offers good resistance to oils and fuels.
Polyurethane (PU)
Excellent abrasion and tear resistance, suitable for high-pressure applications.
PTFE (Teflon)
Low friction and excellent chemical resistance.
Peek (Polyetheretherketone)
High-performance thermoplastic with excellent mechanical and chemical properties.
Applications
Hydraulic Cylinders
In construction equipment, agricultural machinery, and industrial presses.
Pneumatic Cylinders
In automation systems, robotics, and packaging equipment.
Valves
To prevent seal extrusion and ensure proper sealing.
Why Use Backup Rings?
Prevent Seal Extrusion
Backup rings provide support to the seal, preventing it from being forced into the clearance gap between the piston and cylinder bore, especially under high pressure or pulsating loads.
Extend Seal Life
By preventing extrusion, backup rings significantly increase the service life of the primary seal, reducing maintenance costs and downtime.
Improve System Reliability
Preventing seal failure ensures consistent and reliable operation of the hydraulic or pneumatic system.
Handle High Pressures
Backup rings enable seals to withstand higher pressures without the risk of extrusion.
Selecting the Right Backup Ring
Seal Type and Size
The backup ring must be compatible with the specific seal it's being used with.
Temperature Range
The range of temperatures the ring will be exposed to.
Operating Pressure
The maximum pressure the backup ring needs to withstand.
Fluid Compatibility
The type of fluid or gas the ring will be in contact with.
