Hebei Jinwo Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of bronze filled ptfe spgw heavy duty seal in China. With abundant experience, we warmly welcome you to buy bulk durable bronze filled ptfe spgw heavy duty seal in stock here from our factory. All customized products are with high quality and competitive price. Contact us for quotation.
The Bronze Filled PTFE SPGW Heavy Duty Seal is a premium four-piece assembly engineered for ultra-high pressure environments. Integrating a wide PTFE slide ring with POM back-up rings, it provides maximum extrusion resistance and structural stability. This robust design ensures leak-free performance and exceptional durability for heavy-duty mining and construction machinery.
Essential Fitment & Specs
|
Parameter |
Specifications |
|
Type |
SPGW Heavy Duty Assembly |
|
Material Type |
Bronze Filled PTFE + NBR Square Ring + POM |
|
Max. Pressure |
≤ 50 MPa |
|
Temp. |
-35°C to +110°C |
|
Max. Speed |
≤ 1.0 m/s |
|
Media |
Mineral Oil-Based Hydraulic Fluids |
|
Application |
Ultra-High Pressure Double-Acting Pistons |
Reinforced Multi-Stage Sealing & Anti-Extrusion Design
The Bronze Filled PTFE SPGW Heavy Duty Seal is engineered with a robust four-component architecture to handle the most rigorous hydraulic demands.
The primary seal consists of a wide-profile bronze-filled PTFE ring, which provides a massive bearing surface for high-load stability.
This is energized by a dedicated NBR square-section ring that ensures a secure static seal and constant radial pressure. In specialized machinery where a combi oil seal protects the rotational axis, this assembly ensures uncompromising axial stability. Crucially, the assembly is flanked by two heavy-duty POM back-up rings.
These rings act as a rigid shield, effectively closing the extrusion gap even under extreme pressures of 50 MPa, preventing the PTFE element from shearing or deforming.
Extreme Durability & Impact Resilience
This heavy-duty sealing system is specifically built to withstand the violent pressure spikes and mechanical vibrations common in mining and demolition environments.
The wide contact area of the modified PTFE ring dissipates friction heat rapidly, maintaining the physical properties of the seal during high-frequency cycles.
The square-profile energizer provides a more stable foundation than standard O-rings, preventing seal twisting or rolling within the groove during sudden direction changes.
Each component is fabricated to resist cold flow, ensuring the piston maintains maximum volumetric efficiency and zero internal bypass throughout long-term service intervals.
Why Choose Jinwo - Precision Integration for Hydraulic Systems
Jinwo utilizes high-density bronze-filled PTFE compounds to ensure our Bronze Filled PTFE SPGW Heavy Duty Seal series can support massive lateral loads without compromising the cylinder bore's integrity.
Our manufacturing process maintains ultra-tight tolerances across the four-piece assembly, ensuring perfect mechanical coordination between the slide ring, energizer, and back-up rings.
We provide B2B clients with a proven solution that replaces expensive OEM seals, offering identical performance and significantly lowering the total cost of ownership for heavy machinery.
By implementing rigorous stress-testing on every batch, we guarantee that Jinwo seals will perform reliably in the world's most demanding construction and extraction sites.
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