The large-scale twin-screw feed extruder is a special equipment for feed processing, mainly used to manufacture various animal feeds. Compared with conventional single-screw or twin-screw extrusion extruders, large-scale twin-screw feed extruders have higher production efficiency and more stable processing quality. Raw materials are fed into the equipment to realize efficient extrusion, heat treatment and puffing of raw materials. At the same time, due to the larger size of the equipment, the output of the feed output is also higher, which can reach the level of thousands to tens of thousands of kilograms per hour. The components of the large-scale twin-screw feed extruder include the feeding system, conditioning system, Extrusion system, cooling system, cutting system and electric control system, etc. The feeding system can be selected according to the different characteristics of raw materials, such as multi-point feeding, single-point feeding, screw conveying, etc. The conditioning system can pretreat raw materials, such as cooking, starch gelatinization, protein denaturation, etc. The extrusion system is composed of two screws with the same or different sizes and the outer sleeve of the screw. By adjusting the parameters of the screws, feeds with different shapes and different tastes can be realized, and the production efficiency and economic benefits are also improved.