Product Features
1. Rigid Metal-Cased Design
The steel skeleton provides structural rigidity, ensuring a press-fit, anti-displacement fit in open groove housing configurations. This prevents seal blow-out or axial displacement during heavy shock loads.
2. Excellent Dust Scraping
The single lip design exerts continuous radial contact pressure against the piston rod, effectively shearing away abrasive contaminants such as grit, water, and mud.
3. Material Options
●NBR: Standard material for mineral oil-based hydraulic systems, excellent resistance to petroleum oils and abrasion
●PU: Superior wear resistance, good low-temperature performance
●FKM: High-temperature resistance up to 220°C for aggressive environments
4. Protects Main Seals
The GA seal works as a sacrificial barrier, dramatically reducing abrasive wear on primary rod seals and preventing fluid contamination.
5. Firm Installation
The seal is press-fitted into an open-groove housing design, ensuring secure mounting. Proper installation requires a clean, deburred bore and light lubrication.
Frequently Asked Questions (FAQ)
Q: What is the difference between GA and TC oil seals?
A: GA seals are dedicated dust wiper seals that scrape contaminants off the shaft surface. TC seals are oil retention seals with a spring-loaded primary lip and dust lip, designed to prevent oil leakage. GA seals do NOT provide oil sealing and must be used together with a main oil seal.
Q: Is the GA seal suitable for high pressure applications?
A: GA seals are designed for very low pressure (0–0.1 MPa) applications. They provide dust protection only and should not be used in high-pressure sealing cavities.
Q: What materials are available?
A: We offer NBR (standard, -20°C to +120°C), PU (-35°C to +100°C), and FKM (up to 220°C, for high-temperature environments).
Q: What is the maximum speed?
A: For reciprocating motion, the maximum speed is 2 m/s.
Q: How is a GA seal installed?
A: GA seals require an open-groove housing design. They are press-fitted into place using an arbor press or uniform driving tool. Always ensure the housing bore is clean, deburred, and lightly lubricated before installation.
Q: What are your payment terms?
A: We accept T/T (bank transfer), L/C, MoneyGram, Western Union, and cash.
Need GA dust seals for your excavator or heavy equipment hydraulic cylinders?
Contact SANPING SEAL today with your size requirements. Our team will provide a free quote within 24 hours.
