The conditioner is mainly composed of conditioning cylinder, conditioning rotor,observation and inspection door, steam component, and power transmission component. It is used for material conditioning, so that the material is fully contacted with steam and heated and kept for a long time. The material starts to be partially gelatinized, which is convenient for pressing and forming, and improves the surface and internal quality; It is widely used in the feed industry to match pellet mills and extruders. It is especially suitable for extruders such as shrimp and fish. The double shafts have different diameters, different speeds, and opposite directions to make the material and steam and liquid fully shear and interlace mixing; the steam volume and time can be adjusted to ensure the material is fully tempered and the maturation and water resistance; the quick-opening mechanism is easy to clean and maintain.