JS500 is twin shaft compulsory concrete mixer, which can mix subarid rigid concrete, plasticity concrete, flow ability concrete, light aggregate concrete and various mortar. Drum sets with wear resistant cast liner and mixing blade, which is durable and easy to replace. JS500 concrete mixer can be combined with various models batching machine, which applies to various kinds of large & medium scale prefabricated factories and all kinds of construction sites, road, bridge, airports, tunnels and other projects.