: Our Truck Concrete Mixer is strong & well designed construction equipment. The Truck Concrete Mixer transports concrete / mortar directly from plant to the place where it is to be poured with the mixer. There is a high pressure axial piston type pump and motor (Rexroth / Sauer Sunstrand German make) which permits infinite varying drum speed from 0 to 14 rpm in both directions. The Pump gives flow to a high pressure hydraulic motor which rotates the mixer drum through an epicyclic gear reducer. The mixer drum has double spiral type mixing without segregation and smooth flow of concrete while discharging.