The MK piston seal made of wear-resistant Ultrathan® is a sealing element with an integrated guiding surface and cushioning buffers. This seal-guide element can be used both on pistons with or without a permanent magnet. When used in magnetic pistons, the seal-guide element encapsulates the permanent magnet. The front-end cushioning buffers serve to absorb shocks. For double-acting cylinder designs, the MK seal profile may also be used in a back-to-back arrangement.

• The asymmetrical retention groove ensures optimum positive connection between the sealing element and the piston.
• Cushioning buffers on the piston´s front faces with integrated ventilation ducts provide for mechanical cushioning of the cylinders.
• Multi-functional sealing element. The guiding area at the sealing element performs the guiding function in the cylinder. However, due to its geometry the sealing element is not suitable for absorption of high radial forces or long strokes.
• Multi-functional element: seal, guiding and cushioning element.
• Optimal front-side sealing effect due to favourable cushioning buffer geometry.
• Prevents metallic contact between the piston and cylinder. Ideal for light-metal and plastic cylinders (ridging).
• Long service life thanks to application-optimized compounds.
• Easier installation.
• Assembly on one-part piston is possible.
• Excellent media resistance in case of suitable compound selection.
• Low compression set.

Range of application:
For use in pneumatic cylinders.