Abstract: An intermittently moving gondola-type conveyor for handling pallet-supported foundry sand molds includes stations along the curvilinear path of said conveyor where(1) each freshly made mold is invested with a weighted jacket;(2) each jacketed mold is moved to a position to receive molten metal;(3) each of said metal-filled molds is moved through a cooling zone;(4) at the end of said cooling zone, the weighted jacket is removed and transferred to an on-coming freshly made mold, and(5) said cooled metal casting and its surrounding unjacketed sand mold is subsequently discharged said conveyor; each gondola being movably suspended from an overhead curvilinear post-supported upper track, and stabilized against lateral swinging by movable attachments to a lower parallel track also supported by the vertical posts.