{"id":1542,"date":"2026-05-12T08:48:11","date_gmt":"2026-05-12T00:48:11","guid":{"rendered":"http:\/\/8.211.42.149\/?post_type=products&p=1542"},"modified":"2026-06-02T17:36:26","modified_gmt":"2026-06-02T09:36:26","slug":"rs13","status":"publish","type":"products","link":"https:\/\/walleglobal.com\/de\/products\/rs13\/","title":{"rendered":"RS13"},"content":{"rendered":"
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RS13<\/h2>\n<\/div>\n\n\n\n
\r\n\r\n \r\n \r\n <\/svg>\r\n Herunterladen\r\n<\/a>\r\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
Max pressure<\/td>350 Bar<\/td><\/tr>
Temp range<\/td>-45\u00b0C~200\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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Product Overview<\/strong><\/div>
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The RS13 is a high-performance, double-acting or single-acting tandem coaxial rod\/piston seal designed for demanding hydraulic and pneumatic cylinders. It features an advanced composite structure: a primary polymer slide ring (represented in green) integrated with twin rectangular back-up rings (represented in black) located at the basal corners. This asymmetric profile is specifically engineered to handle high-pressure fluctuations, reduce operational friction, and provide zero-leakage performance under harsh working conditions.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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Material Characteristics<\/strong><\/div>
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Primary Slide Ring (Green Body):<\/strong> Typically machined or molded from high-grade Turcon \/ PTFE (Polytetrafluoroethylene) compounds or premium Polyurethane (PU\/Polyurethane elastomer). This material offers an exceptionally low coefficient of friction, high thermal stability, and excellent wear resistance, ensuring smooth sliding even during dry-running or starved lubrication phases.<\/p>\n\n\n\n

Back-up \/ Anti-Extrusion Rings (Black Elements):<\/strong> Fabricated from high-modulus, rigid technical plastics such as POM (Polyoxymethylene \/ Acetal), PA (Nylon), or hard elastomer composites. These elements possess superior compressive strength and hardness to effectively resist high-shear forces at the seal gap.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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Structural & Performance Advantages<\/strong><\/div>
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Anti-Extrusion Design:<\/strong> The prominent twin-block design at the heel acts as a robust anti-extrusion barrier. Under intense system pressure, these rigid blocks prevent the softer green sealing body from migrating or extruding into the clearance gap, significantly extending the seal’s service life.<\/p>\n\n\n\n

Optimized Contact Pressure:<\/strong> The top dynamic sealing lips feature a subtly contoured, asymmetric geometry. This unique crown profile optimizes hydrostatic pressure distribution, ensuring a reliable primary sealing effect while minimizing breakout and running friction.<\/p>\n\n\n\n

Dual-Directional Back-up Stability:<\/strong> Positioned at both bottom flanks, the rectangular blocks provide impeccable axial stability within the groove, preventing seal twisting, tilting, or rolling during high-frequency stroke cycles.<\/p>\n\n\n\n

Stick-Slip Elimination:<\/strong> The specialized material pairing allows for excellent stick-slip-free operation, ensuring precise positioning and smooth movement even at low sweeping velocities.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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Application Scope<\/strong><\/div>
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The RS13 profile is widely used across heavy-duty industrial and mobile hydraulic systems where high pressure, durability, and low friction are critical:<\/p>\n\n\n\n

Mobile Hydraulics:<\/strong> Earthmoving machinery, excavators, cranes, agricultural equipment, and forestry vehicles.<\/p>\n\n\n\n

Heavy Machinery:<\/strong> Injection molding machines, hydraulic presses, forging equipment, and iron\/steel rolling mills.<\/p>\n\n\n\n

Control & Automation:<\/strong> Control valves, servo-hydraulic systems, and positioning cylinders requiring minimal hysteresis.<\/p>\n\n\n\n

General Industry:<\/strong> Standard ISO\/VDMA cylinders working under high pressure or high-velocity environments.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n

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