Fish feed pellet machines can be divided into small dry-type extruders and large wet-type extruder fish feed pellet machines.
Dry-type: The dry-type fish feed pellet making machine is called a single-screw extruder. It is usually used for small-volume feed production. The single-screw extruder has a relatively stable work and strong shearing force. The heat distribution is uneven when the material is extruded than the wet twin-screw extruder. It is mainly used to process raw materials, poultry, and farmed feed, generally installed in floating fish feed pellet lines.
Wet type: It is equipped with a preparation device to ripen the raw feed materials and is usually used for large-volume production. The wet-type extruder can produce beautiful ultra-small diameter particles. Also, it has a good self-cleaning effect, no need to disassemble, good ripening degree, high water content, wide application range, and can produce high oil and high moisture materials. It is mainly used in aquatic, pet, and animal feeds.
These two type fish feed pellet machines based on you production demand to choose.