System for impregnation of castings

A system for impregnation and washing of castings, comprising:

• a vacuum chamber for impregnation of castings with a sealant;
• at least one wash chamber for washing the castings after impregnation of the castings with the sealant;
• a storage chamber for storing the sealant;
• a valve connected to and in fluid communication with the vacuum chamber and the storage chamber, wherein the valve controls flow of the sealant to and from the storage chamber into and out of the vacuum chamber;
• a basket comprising
• (i) a plurality of bins to hold the castings without causing the castings to come in contact with each other during impregnation of the castings with the sealant,
• (ii) a partition sheet lining each of the plurality of bins, the partition sheet being configured with a plurality of perforations and a plurality of slots that facilitate the washing of the castings, and
• (iii) stubs configured on each of first and second ends of the basket for orientation thereof;
• a gantry configured to place the basket into the vacuum chamber before the impregnation of the castings, to remove the basket from the vacuum chamber after impregnation of the castings and a return of the sealant to the storage chamber, and to place the basket into the at least one wash chamber after the impregnation of the castings;
• and
• at least one gripper disposed on the gantry for gripping and lifting the basket through the stubs, wherein the at least one gripper comprises pins configured to prevent sticking of the sealant therein, thereby preventing jamming of the system.