Design and Calculation of a Concrete Mixer (100 kg)

Abstract

In this paper describe the design and calculation of concrete mixer for weight 350 kg approximately. A concrete mixer machine is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. Concrete is an important component required for construction of houses and roads. However, most operation of mixing concrete in Myanmar is done manually as a result of lack of insufficient machinery and high importation cost. In this machine, I used the RPM drum of 25 rpm, shaft diameter of 40 mm, shaft length of 292 mm and electric motor power of 3 HP. Design consideration of this paper is to calculate Mixing Force, Mixing Value, belt tension and required power by mixer. The result obtained show the Mixing force of 1471.5 N, mixing volume of 0.348 m 3 and required power by mixture of 2.43 hp.