Kastaş’s new generation heavy-duty sealing component K501 offers the most effective sealing solutions for hydraulic systems used in heavy-duty construction machinery such as excavators, wheelloaders, and heavy duty cranes.

Compared to both its previous design and competitors, new K501 stands out for its better sealing, lower friction and long service life. Redesigned after the studies of the Kastaş R&D Center, K501 has proven its performance by successfully passing long and challenging test processes. Designed to meet the high expectations for heavy-duty piston applications, along with the renewed design, K501 Piston Seal is strengthened with Polyamide material with special additives. Thus, K501, offering safe usage in high-pressure applications, cold drawn tubes and rough surfaces, distinguishes itself from its competitors with low leakage, low friction and long service life.

Low Leakage

Low Friction

Long Service Life