Attachment for injection molding machines for use in the containment and collection of unused spray and materials for recycling and which filters fumes to provide a safer and cleaner environment for workers; Molding machines, namely, automatic green sand molding machines; matchplate molding machines, including technologically advanced matchplate molding machines for use in foundries to produce quality castings; turntable mold handling machines and systems for efficient handling of molds, comprised of flaskless green sand molds, which are pushed out of a molding machine and onto a bottom board; self-storing automatic mold conveyors providing unpoured mold storage and quick transport of molds on demand to a turntable; automatic core setters for handling cores including delicate cores and larger firm cores; linear mold handling systems, comprised of molding machines and mold conveyors; easy-to-install, clean, expandable, efficient and quality molding and mold handling systems comprised of hydraulically powered components namely movers and positioners for smooth and reliable operation; mold storage systems, for storage of unpoured molds, comprised of high-speed automatic accumulating conveyors and automatic mold elevators; structural machine parts for sand preparation, namely, over belt aerators, aerator homogenizers, bucket elevators, bottom bin activators, magnetic grading drums, pre-mix coolers, rotary screens, fluidized bed coolers, belt conveyors, and rotating pan intensive mixers