Yasui Graphite Crucible Stopper for K2E/S 8kW & K2 NEXT

This specialized graphite stopper is a critical component for the Yasui K2E and K2 Next series of vacuum casting machines. It is designed to perfectly seal the crucible's bottom opening until the metal reaches the exact casting temperature, at which point it is lifted to allow the pour. Made from high-purity, heat-resistant graphite, it prevents premature leaking and ensures a clean, controlled metal flow. Regular replacement of the stopper is essential to maintain the precision of the automated casting cycle and to prevent the contamination of the precious metal alloy.