各種乾粉物料從設備頂部加入，經脫氣、螺旋頂壓進入對輥，在對輥極大的擠壓力作用下使物料產生塑性變形而被壓縮成片狀。片狀物料在經過破碎、整粒、篩分等過程，得到顆粒狀產品。通過改變輥麵開槽形式，可得到片狀、條狀、扁球狀物料。擠壓力的大小可根據造粒操作的需要由液壓油缸的壓力進行調節。

Dry powder materials will be spirally pressed from the top into the gaps between the double rollers after gas removing . Then under the action of the huge extruding power from double rollers , the materials will be compressed into slices . Then after the processes of crushing , reorganizing and screening ,slice materials will be turned into granules or pellets. Different shapes of materials such as slices,strips, oblate balls etc. can be achieved by changing the groove forms of the roller surface. The extruding power can be adjusted by hydraulic cylinder according to different requirements.