MIXING TRUCKS IMER Group Truck Mixers are engineered, manufactured, and in operation around the world. The mixers are designed with the basic understanding that every spin of the drum and tick of the clock determines the success of the concrete mix within the time-sensitive window of opportunity for delivery. Exclusive Drum and Mixing Blade Design The exclusive design of the drum and mixing blades guarantees a consistent mixture in all drum sections, keeping and improving the characteristics of the concrete in transport. Proprietary Formula Steel