Shrimp feeds are among the most expensive diets within the aquaculture industry, largely due to their need for high water stability. Shrimp locate feed exclusively by smell and taste rather than sight. Unlike finfish, shrimp require minutes or hours to locate feed after it is distributed in ponds.
The extrusion process begins with preconditioning the meal using steam and water to form a hot, moistened mash. The mash is introduced into the extruder barrel and conveyed to the other end by a rotating screw which creates heat due to friction. The feed exits the extruder barrel through a restricted die opening that creates pressure and forms the desired shape. The extrudate strands emerging from the die are cut into pellets with a rotating knife. The process has flexibility to produce diets with a wide range of fat levels, densities, shapes and sizes.
Shandong Arrow provide the turnkey solution for the Shrimp and crab feed production line. Including the raw material receiving, automatic batching, grinding, mixing, extruding, drying, caoting, cooling and packing system.

The Sinking Fish Feed Production Line is designed for producing high-quality sinking fish feed, slow-sinking feed and other aquatic feed pellets. The line integrates grinding, mixing, extrusion, drying, coating, cooling, and packing into a complete turnkey solution for efficient and stable feed production.
Equipped with an advanced fish feed extruder machine, the system ensures precise control of pellet size, density, and water stability. The finished feed offers excellent digestibility, reduced feed waste, and improved feed conversion efficiency.
Key advantages include high automation, flexible capacity, stable operation, lower labor costs, and customized pellet sizes for different aquatic species and growth stages. Suitable for aquaculture farms, feed mills, and commercial feed manufacturers, the line supports premium feed formulations and large-scale production requirements.
Shandong Arrow provides customized fish feed production lines, fish feed pellet machines, fish feed extruders, and complete fish feed manufacturing solutions to help customers improve productivity, product quality, and profitability.