For JZC series concrete mixers, the drum mixing is driven by gear. There are JZC 350, JZC 500 and JZC 750. According to discharging method, the concrete drum mixer also be called non tilting drum mixer. While in terms of materials feeding ways, it is sometimes known as tilting drum concrete mixer. JZC350 AIMIX Drum Concrete Mixer. Model. JZC350.