Shj series single-shaft twin screw animal feed mixer is a horizontal and a batch type, have the special rotor structure and high mixing degree. The cleft between rotor and main body casing can be adjusted. There is the wide-door or full-opened door at the bottom, make the materials convenient for pouring. Both ends of machine are designed double-deck, avoid to discharge materials. The discharge outlet is controlled by the pneumatic way (also dynamo-electric or manual ), make the action more accuracy and sealing function acting more better. In addition, the oil pipe is installed inside the machine, has the whole structure reasonable, figure beautiful, and in favor of machine operation and maintain.