The JS series double- horizontal-shaft mixer is designed and produced base on the digestion of domestic and foreign advanced technology. The series of products have types of JS500、JS750、JS1000、JS2000, can compose simple concrete mixing station, applicable to architectural project and the prefabricated component factory, mixing for making concrete tile, can used for mixing the dry and hard concretes, the quaking concrete, the poured concrete, the lightweight aggregate concretes and each kind of mortar. The leaf blade uses new screw type arrangement, make the mixing time shortened, mixing uniformly, reaches excellent mixing effects, can meet the requirements of the different conditions.