Cooling of feed pellets is essential in the pelletising process. When leaving the pelletising machine, the pellets are very hot, soft and moisture-rich. The cooling process cools them down to a temperature slightly above room temperature (3°C - 5°C) and reduces their moisture content to a safe level (≤12.5%) for transport and storage.
Counter-current coolers, with both sliding grid and flap type discharge structures, can be precisely matched to different feed types in different feed mills. After cooling and drying, the whole pellets or extrudates are sieved to remove fines and spills to bring the pellets to acceptable size. The packing operation begins when the finished feed enters the supply box above the packer and ends when the bags are placed in storage. The procedure includes weighing each bag of feed, placing the weighs in the bag, closing the bag, labelling the bag, coding the bag, palletising the bag and moving the bag to the warehouse for storage.
