JZC JZM concrete mixer machines is the reversal mixer machines, the mixer canister is drove by the tooth circle. When it works, if you veer turn is mixing, and reversal turn is output material. It can mixer the plastic and the half dry hard concrete. And it is the ideal machines for construction fields, road, bridge project and all kinds of concrete parts factory. JZC series mixer includes JZC250, 350, 500, 750 and JZM350. All the machines are portable type except JZC750 is stationary one.