The mixer is very ruggedly constructed from heavy steel sections, with a fixed mixer pan, all mounted on substantial base frame. The motor is installed horizontally, driving the gearbox through a flexible coupling, with the complete assembly being mounted on top of the mixer body for easy access. The rotating mixer unit consist of two sets of mixing rotors, which rotate on their own axis and simultaneously revolve the around the tank circumference. The planetary type driving system, provides high speed agitation through each of the mixing rotors. Each rotor consist of three mixing arm with replaceable wear blades.
The sides of the mixer are cleaned by two tungsten-carbide scrapes, which continually scrape the full height of the mixer-pan as they rotate around the central axis. The integral charge hopper, built into the top of the mixer cover, feeds used sand into the mixer. Discharge of the regenerated sand from the mixer is achieved by means of a large opening in the pan of the unit. This consists of a circular segment which opens to allow for the rapid discharge of sand to take place in 10 to 12 seconds, the horizontally-rotating discharge door is operated by a heavy-duty cylinder. Water enters the mixer through the central axis and is introduced to the sand via spray heads mounted on the rotor arms near the top.