The new legislation put in place in 2018 restricting the GVW (gross vehicle weight) at which volumetric concrete mixers could operate at, meant that Armcon took the decision to design a new machine. The existing mixer, AM4, at the new GVW of 32,000kg would have meant a payload of less than 7m³, which would be significantly less than what operators were used to carrying (which was up to 11m³ depending on chassis specification). We felt that 8m³ would still make volumetric mixers a viable…