1461032517-bc17c81b-900a-461b-8895-8fdebbb6fb14

A centrifugal blast wheel machine includes a housing, a wheel assembly configured to throw blast media introduced into the wheel assembly against a work piece, and an impeller positioned about an axis of the wheel assembly. One embodiment includes an animation server and a database containing metadata describing a plurality of animations and the compatibility of ordered pairs of the described animations. Also, disclosed is the creation and transmission of label delivery links, which provide for dynamic generation and delivery of shipping labels. In some embodiments, the device further includes a conductive bottom shield below the semiconductor device shielding the semiconductor device from ambient radiation. At least two one-way valves are installed inside of the air chambers.