Seal systems - Import export

Rodless linear drives allow stroke lengths of up to 6000 mm with a reduced overall length. Stable guidance and durable sealing system even at high speeds and temperatures.

A single-acting rod seal, Zurcon® L-Cup® is an alternative to the U-Cup. It is a highly effective sealing system offering optimized sealing performance and extended service life. With exceptionally low friction properties, it has high wear resistance, back pumping ability along with high static and dynamic tightness.

In heavy duty applications, leak free performance and high service life cannot be assured by a single sealing element; therefore, specially developed ”system seals” are arranged in series, building a ”tandem configuration”. Each sealing element in a system has its specific function and their interaction needs to be secured to get a redundant sealing system. The primary seal in Zurcon® material has an excellent wear and extrusion resistance under extreme working conditions. It allows a fine lubrication film passing this first barrier, ensuring the necessary lubrication of the secondary sealing element for long service life. The ”tandem arrangement” requires an outstanding back-pumping ability of the primary seal and the secondary seal, if a double acting scraper is installed.