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The Hydraulic Rubber Standard DAS KDAS DDAS Compact Seal is a high-performance, five-piece assembly engineered for double-acting pistons. Combining an NBR sealing element with back-up rings and POM guides, it prevents extrusion and ensures precise alignment. This robust design offers superior leak protection for heavy-duty industrial hydraulic systems.
Essential Fitment & Specs
Parameter | Specifications |
Type | DAS / KDAS / DDAS Compact Seal |
Material Type | Premium NBR + TPE/PU Back-up + POM Guide |
Max. Pressure | ≤ 31.5 MPa |
Temp. | -30°C to +110°C |
Max. Speed | ≤ 0.5 m/s |
Media | Mineral Oil-Based Hydraulic Fluids |
Size | Full Range of Metric/Imperial Sizes |
Application | High-Pressure Reciprocating Pistons |
Integrated Multi-Component Synergy
The Hydraulic Rubber Standard DAS KDAS DDAS Compact Seal is an all-in-one sealing solution comprised of five precision-engineered elements.
At its core, the high-elasticity NBR ring provides primary dynamic sealing for double-acting pistons.
While it serves as a piston solution, its integrated technology is as robust as a specialized combi oil seal. This central element is supported by two split back-up rings that prevent extrusion under significant pressure loads.
Completing the assembly are two POM guide rings that manage radial forces and maintain axial alignment, effectively preventing metal contact between the piston and the cylinder bore. This synergistic design allows a single seal assembly to perform multiple critical functions within a compact axial space.
Dynamic Heavy-Duty Performance
This compact sealing system is specifically optimized to endure the intense pressure cycles and mechanical shocks found in heavy-duty industrial hydraulics.
The integrated structure enables equipment designers to utilize shorter piston lengths, which directly translates to reduced material costs and more streamlined cylinder architecture.
By maintaining a stable oil film across a wide range of operating temperatures, the seal minimizes friction while ensuring maximum leak protection.
Its robust construction remains effective even during high-frequency reciprocating movements, providing the necessary resilience for excavators, loaders, and various earthmoving equipment operating in demanding environments.
Why Choose Jinwo - Precision Integration for Hydraulic Systems
Our DAS series utilizes high-grade POM compounds for the guide rings to ensure superior bearing capacity and resistance to abrasive particles within the hydraulic fluid.
We implement strict dimensional control over the entire 5-piece set of the Hydraulic Rubber Standard DAS KDAS DDAS Compact Seal to ensure that every component fits the piston groove with perfect interference, eliminating the risk of internal bypass.
The NBR sealing body is formulated for low compression set, which allows the seal to maintain its initial sealing force even after millions of stroke cycles in heavy machinery.
Jinwo supports B2B procurement with a highly efficient manufacturing process that provides reliable, high-performance compact seals, helping our partners reduce maintenance overhead and extend the service life of their hydraulic assets.
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