Abstract: Disclosed herein is a molten molding material dispenser for use in a molding machine and/or molding machine assemblies. The dispenser includes an outlet body defining an outlet, and also includes an outlet cover being operatively movable relative to the outlet, any one of the outlet body, the outlet cover and any combination thereof being magnetically movable, the outlet body and the outlet cover being mechanical-actuation disengaged.

Abstract: In a reciprocating (RS) injection unit environment, as shown in FIG. 1, a controller of the injection unit is arranged to continuously rotate the screw during both conventional plasticizing operation and shot injection. In this way the RS unit is more efficient, utilizing less energy and producing greater resin output. The injection unit includes a non-return valve adjacent a nozzle, which non-return valve is either configured to rotate with the screw to reduce wear or presented as a ball check style noon-return valve. In an injection molding environment, the rotating screw includes flights that allow granules of resin to melt and mix in spaces between adjacent flights, but the flights are arranged substantially to inhibit excessive displacement of resin around the flights.