Rapid International's RT3000 and RT4000 Twin Shaft Mixers offer a compact footprint and 4- and 5-yd. outputs, respectively. The mixers feature high turbulent mix zones; control panels with soft start mechanism; thick, premium chill cast tiles and paddles; discharge doors with two independent hydraulic rams; top doors with safe interlocks; drop-down, galvanized viewing platforms; twin, heavy-duty gear boxes directly driving mixer shafts; over-sized auto-lubrication chambers; and, (optional) four-minute cycle jetwash system. The Twin Shaft joins Rapid's pan and planetary mixers and a full range of stationary and mobile batch plants, including a model for roller compacted mixes. Rapid Intl. is represented in the U.S. by Standley Batch Systems.