Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
BRONZE FILLED PTFE-Sealed GSZ Composite Dust Seal
Suitable for Severe Dust & Low-Temperature Environments
Core design: Dual-lip structure with BRONZE FILLED PTFE sealing ring + preload O-ring, compact to save installation space.
Key functions: Efficiently scrapes tough contaminants, retains residual oil film, and adapts to rod/plunger deformation.
Advantages: Exceptional wear/heat resistance (-180℃ to +260℃), low friction (no stick-slip), strong compatibility with hydraulic media.
Value: Reliable for high-frequency reciprocation in dusty/cold environments, ideal for hydraulics, pneumatics, servo/chemical/food equipment.
Key functions: Efficiently scrapes tough contaminants, retains residual oil film, and adapts to rod/plunger deformation.
Advantages: Exceptional wear/heat resistance (-180℃ to +260℃), low friction (no stick-slip), strong compatibility with hydraulic media.
Value: Reliable for high-frequency reciprocation in dusty/cold environments, ideal for hydraulics, pneumatics, servo/chemical/food equipment.
5.0
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
Crafted with a BRONZE FILLED PTFE sealing ring, this GSZ dust seal boasts exceptional wear resistance and thermal conductivity (superior to standard PTFE), eliminating stick-slip during startup. Its dual-lip design efficiently scrapes tough contaminants (e.g., dust, debris) and retains residual oil film on rods, while the preload O-ring compensates for rod/plunger deformation. With strong hydraulic media compatibility, it ensures long-lasting reliability in harsh conditions.
2. Working Principle
The dual-lip structure (dust lip + sealing lip) works with the BRONZE FILLED PTFE ring to block external contaminants; the O-ring provides constant preload, maintaining tight contact with the rod. The bronze-filled PTFE enhances rigidity and anti-creep performance, while its low friction enables smooth high-frequency reciprocating motion—critical for precision systems.
3. Product Details
Sealing Ring Material: BRONZE FILLED PTFE (density: 3.0-3.95g/cm³, Shore D hardness: 65-75)
O-Ring Material: NBR/FKM (customizable for media compatibility)
Structure: Compact dual-lip design (saves 20% installation space vs. standard seals)
Certifications: Complies with ISO 9001 and industrial standards (Trelleborg WE3/Parker AD references)
4. Application Scope
Ideal for hydraulic/pneumatic systems, servo equipment, chemical machinery, and food-grade devices. Excels in severe dust or high-frequency reciprocation scenarios (e.g., construction machinery, industrial pumps).
5. FAQ
Q: Is the BRONZE FILLED PTFE resistant to chemicals?
A: It resists most media but avoids sulfides, liquid ammonia, and strong acids.
Q: Can it be customized for non-standard sizes?
A: Yes—Forever Seals offers tailor-made solutions for specific installation needs.
Q: What’s the service life in dusty environments?
A: 2-3x longer than standard PU seals (avg. 5,000+ operating hours).
6. Forever Seals Selling Points
Expertise: 15+ years in industrial sealing solutions, with R&D teams optimizing material formulas.
Quality Assurance: 100% pre-shipment testing (leakage, wear resistance) to ensure zero defects.
After-Sales: 24/7 technical support and 12-month warranty for all GSZ series products.
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