A concrete mixer truck spins his mixing drum that is filled with concrete to deliver it to the next construction area. The drum has got two spinning directions. One is for mixing and the other for transporting the concrete out from the inside of the drum. If you fix the spinning drum to the ground, the entire truck will start spinning around the drum. This is possible if the concrete is hardening to fast before its transported entirely from the inside drum.

material_steel, iron rope, 380V motor 0,55KW, transmission 217N/m, cardboard
measures_9 x 8 x 18 ft
date_ADBK MUNICH 1_2005