Hebei Jinwo Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of high pressure hydraulic spgw heavy duty seal in China. With abundant experience, we warmly welcome you to buy bulk durable high pressure hydraulic 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 High Pressure Hydraulic SPGW Heavy Duty Seal is a robust four-piece assembly engineered for extreme industrial environments. Combining a bronze-filled PTFE slide ring with rigid back-up rings, it provides maximum extrusion resistance up to 50 MPa. This compact design ensures leak-free performance and exceptional durability for heavy-duty mining machinery.
Essential Fitment & Specs
Parameter | Specifications |
Type | SPGW Heavy Duty Assembly |
Material Type | Reinforced Bronze PTFE + NBR + PA/POM |
Max. Pressure | ≤ 50 MPa |
Temp. | -35°C to +110°C |
Max. Speed | ≤ 1.0 m/s |
Media | High-Pressure Mineral & Synthetic Oils |
Application | Heavy-Load Reciprocating Pistons |
Reinforced Multi-Stage Sealing & Anti-Extrusion Design
The High Pressure Hydraulic SPGW Heavy Duty Seal is engineered with a high-strength four-piece configuration specifically for extreme hydraulic loads.
The wide-profile bronze-filled PTFE slide ring is energized by a heavy-duty NBR square ring, ensuring a stable, leak-free contact surface across a wide pressure range.
In systems where a combi oil seal provides secondary rotation protection, this assembly ensures uncompromising axial stability.
This assembly is fortified by two rigid polyacetal back-up rings that eliminate the extrusion gap. This multi-layered barrier protects the soft sealing components from shearing under intense hydraulic spikes of 50 MPa, maintaining long-term structural integrity in demanding environments.
Extreme Durability & Impact Resilience
This sealing assembly is specifically optimized to absorb the mechanical energy of hydraulic shocks common in primary crushing and heavy excavation.
By utilizing a bronze-filled polymer with superior heat dissipation, the seal prevents localized thermal buildup during sustained high-frequency operation.
The square-section elastomer provides a more secure radial pre-load than circular rings, ensuring the seal remains seated even during severe lateral cylinder deflection.
Each layer of the seal is fabricated from wear-resistant materials that resist chemical degradation, keeping the hydraulic circuit free from internal contamination and pressure loss.
Why Choose Jinwo - Precision Integration for Hydraulic Systems
Jinwo provides industrial-grade High Pressure Hydraulic SPGW Heavy Duty Seal solutions that are field-tested to ensure maximum volumetric efficiency in high-tonnage heavy machinery.
We optimize the interference fit between the energizer and the slide ring to achieve immediate sealing response even after long periods of equipment idling.
Our production process focuses on achieving a mirror-smooth finish on the PTFE contact surface, reducing parasitic drag and extending the life of the cylinder bore.
By partnering with Jinwo, B2B distributors can deliver high-reliability sealing kits that significantly reduce unplanned maintenance costs for their end-users.
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