Feeder with variable frequency adjustable speed to control the rotary speed of feeding. Conditioner with fan-shaped blade, vast door is easy for cleaning.The angel of blade can be adjusted, so the conditioning time and filling coefficient can be adjusted at will. Conditioner use the device of entering steam and liquid from points, the valve opening can be adjusted. Drive case with imported bearings, balanced drive and long useful life. Automatically adjust opening of annular feed outlet or by manual regulation to control extruded feed quality. Screw is processed through special technology with long useful life. Activity maintenance is suitable for the demand of suckling pig growth. Improve palatability, suckling pigs like feeding. Improve feed convert ratio to reduce the cost.