Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
GSJ-W Heavy-Duty Piston Rod Steck Seal
Bronze Filled PTFE Seal Body, NBR/FKM/PU Elastomer
The GSJ-W is a high-performance heavy-duty Steck seal for demanding hydraulic piston rod systems, built with a bronze-filled PTFE seal body (excellent wear resistance, anti-extrusion) and optional NBR/FKM/PU elastomers to fit diverse needs. Its bronze-filled PTFE core ensures long-term stability in heavy-load, high-pressure scenarios, while elastomer options (NBR for standard use, FKM for high temps/chemicals, PU for elasticity) adapt to -35℃ to +200℃ environments. It also features low friction to avoid "stick-slip" in reciprocating motion, plus easy installation to cut maintenance downtime—delivering leak-free performance for bulldozers, forging presses, etc., and extending equipment lifespan.
5.0
design customization
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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. Core Advantages
Superior Durability: The seal body, constructed from bronze-filled PTFE, delivers exceptional wear resistance and anti-extrusion performance, preventing deformation even under heavy loads and high-pressure hydraulic conditions.
Flexible Adaptability: Optional elastomers (NBR/FKM/PU) cater to diverse application needs—NBR for standard hydraulic fluids, FKM for high-temperature or aggressive chemical environments, and PU for enhanced elasticity—ensuring stable operation from -35℃ to +200℃.
Low Maintenance: The low-friction design eliminates "stick-slip" during reciprocating motion, and no additional lubrication is required, effectively extending service life and minimizing equipment downtime.
2. Working Principle
The GSJ-W achieves reliable sealing through the synergy of two key components:
Bronze-Filled PTFE Seal Ring: Acts as the primary sealing element, forming a tight barrier against fluid leakage while withstanding mechanical wear in continuous operation.
Elastomer (NBR/FKM/PU): Provides constant preload to the PTFE ring, compensating for wear over time and maintaining consistent sealing performance even with minor tolerances in piston rod dimensions.
3. Product Details
The GSJ-W heavy-duty piston rod Steck seal features a seal body made of bronze-filled PTFE, ensuring robust structural integrity for demanding conditions. For elastomer options, customers can choose from NBR, FKM, or PU—with customization available to match specific application requirements. Its operating temperature range spans from -35℃ to +200℃, though the exact range may vary slightly depending on the selected elastomer type. Key functional features include strong anti-extrusion capability, low friction during movement, and easy installation, which simplifies maintenance processes. Additionally, the seal complies with industry standards GB/T 15242.1-94 and GB/T 15242.3-94, ensuring alignment with global quality and performance benchmarks.
4. Application Range
Ideal for heavy-duty hydraulic reciprocating systems in the following fields:
Construction Machinery: Bulldozers, excavators, loaders
Industrial Equipment: Forging presses, ceramic brick presses, rolling mills
Machine Tools & Precision Systems: Servo valves, CNC machine tools
5. Frequently Asked Questions (FAQ)
Q1: How do I select the appropriate elastomer for my application?
A1: Choose NBR for standard hydraulic oils (cost-effective option); FKM for high-temperature or chemically aggressive environments; and PU for medium-load scenarios requiring better elasticity.
Q2: Is lubrication necessary for the GSJ-W during operation?
A2: No—its bronze-filled PTFE body supports dry operation, reducing maintenance procedures and associated costs.
Q3: What is the maximum pressure the GSJ-W can withstand?
A3: It is suitable for most high-pressure hydraulic systems (compatible with typical heavy-duty equipment pressure requirements). For custom high-pressure solutions, please contact Forever Seals directly.
6. Forever Seals Advantages
Customization Capability: We offer tailored solutions for seal size, elastomer type, and material thickness to match your specific equipment and operational needs.
Quality Assurance: All GSJ-W seals undergo rigorous pressure and wear testing, adhering to international industrial standards to ensure consistent performance.
Global Support: Our team provides 24/7 technical consultation and after-sales service, delivering timely solutions to address your sealing challenges.
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