Hebei Jinwo Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of ptfe step rod seal in China. With abundant experience, we warmly welcome you to buy bulk durable ptfe step rod seal in stock here from our factory. All customized products are with high quality and competitive price. Contact us for quotation.
The PTFE Step Rod Seal is a high-performance single-acting component consisting of a bronze-filled PTFE slide ring and an O-ring energizer. Designed for high-speed reciprocating rods, it ensures low friction and zero leakage under high pressure. This robust solution maintains superior wear resistance and thermal stability in precision hydraulic systems.
Essential Fitment & Specs
|
Parameter |
Specifications |
|
Material |
Bronze-Filled PTFE / NBR 70 Shore A |
|
Temp. |
-35°C to +110°C |
|
Work Pressure (Max. Pressure) |
≤ 40 MPa |
|
Run Speed (Max. Speed) |
≤ 5.0 m/s |
|
Media |
Mineral Oil-Based Hydraulic Fluids |
|
Structure Type |
Step Seal Profile with O-Ring Energizer |
|
Application |
High-Speed Reciprocating Rods |
Structural Integration & Sealing Principle
The PTFE Step Rod Seal is a high-performance single-acting sealing element consisting of a modified ptfe rod seal slide ring and an elastomeric O-ring energizer.
The O-ring provides a consistent radial force that ensures the sealing lip maintains optimal contact with the rod seal hydraulic cylinder surface, even at zero pressure.
As the system pressurizes, the energizer deforms, increasing the contact stress at the sealing edge to prevent leakage. Its "step" profile is specifically designed to allow for the formation of a controlled lubricant film, while its sharp leading edge efficiently wipes away excess fluid during the return stroke, ensuring a dry cylinder rod seal.
Dynamic Performance & Wear Resistance
This PTFE Step Rod Seal configuration is renowned for its exceptionally low breakout and dynamic friction, effectively eliminating stick-slip issues in various rod seal types.
The bronze-filled ptfe rod seal matrix provides superior thermal conductivity and load-bearing capacity, protecting the seal from deformation under high-speed sliding conditions.
Its high chemical compatibility and wide temperature range allow it to maintain sealing integrity across diverse industrial environments or a specialized pneumatic rod seal application.
The robust design of the step profile ensures high resistance against extrusion and wear, significantly extending the service life of heavy-duty hydraulic cylinders.
Why Choose Jinwo - Precision Integration for Hydraulic Systems
Jinwo employs advanced sintering and CNC machining processes to ensure the step profile's edge remains perfectly sharp for every rod seal hydraulic cylinder component.
We utilize premium-grade materials to provide the best balance between low friction and long-term durability across all rod seal types we manufacture. Every batch is subjected to rigorous testing to ensure immediate response and a perfect fit for any cylinder rod seal housing.
By partnering with Jinwo, manufacturers gain a reliable pneumatic rod seal or hydraulic solution that reduces energy loss and minimizes the maintenance requirements of precision equipment.
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