A rotary style system is a larger turntable with a portion exposed outside of the machine, where parts rotate into and back out of the blast cabinet. The part may receive a series of blasts at different indexed stations on its trip through. This design may also have spindles which rotate the parts according to program. An operator may unload a finished part, replace it with an unfinished one, then cycle the machine with a foot switch while both hands are on safety palm switches. This is a common system for more complex parts requiring multiple and varied blast angles.