Machine JS500 concrete mixer with single horizontal shaft which including machine ,hydraulic and electronic,the mixer is rely on cylinder gear drive,which to guarantee stable operation,feed machanism using host motor,which to guarantee stable and safe,stripping mechanism using double action hydraulic oil cylinder roof streching and stirring cylinder to rotating which made discharge rapidly and cleanlily ,hydraulic system operated by reversing valve,very easy to control ,the system mixer can mix various ratio of concrete ,mortar and plaster ,the mixer is an idear concrete mixer for all kinds of middle and small buliding engeneerings.