A proprietary polyurethane compound, Zurcon Z25, has all the characteristics of the widely used Zurcon grade Z20 with an elevated operating temperature to 130°C or 270°F. Zurcon Z25 is recommended for hydraulic applications in which high-temperature performance is required due to an improved extrusion resistance and compression set. The material is ideal for use in heavy-duty cylinder sealing applications where it can guarantee a long service life. These include industrial and mobile applications with limited cooling or cylinders exposed to high-temperature painting.
Self-energizing, Zurcon Z25 operates at pressures to 40Mpa or 5,800 psi without a Back-up Ring. It is suitable for use in all hydraulic fluids and has a low compression set. It has an MDI (diphenylmethane diisocyanate) material base and is also suitable for rotary applications such as swivel joints, where heat is generated by high pressures and low speeds.
Trelleborg Sealing Solutions has also developed Turcon M12, a PTFE based sealing material for key hydraulic sealing characteristics such as friction, wear and high-pressure operation. Extensive testing has shown that Turcon M12 resists most all media, including a broad range of lubricants, and has outstanding wear resistance and friction characteristics. The cost-effective material also provides extended seal life, as well as a wide operating window in temperature, pressure and velocity. “On almost every parameter it is better than previously recommended compounds—sometimes significantly—or was at least equal to them,” says Trelleborg Sealing Solutions’ Fort Wayne product manager Nancy Getz. Turcon M12 can fit hydraulic applications and meet a more universal range of applications.”
Trelleborg Sealing Solutions
Filed Under: Hydraulics, News