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Twin screw extruder :why more picky on the fineness of raw material


Twin screw extruder ,as a food extruder function equipment, the requirements for the fineness of raw materials is relatively harsh

Twin-screw extruder ,as a food extruder function equipment, the requirements for the fineness of raw materials is relatively harsh. Common, the raw material fineness of the twin-screw extrusion machine is required to be above 50-60 mesh, why?

We explain to you now,on professional conventional understanding :

1. on the Feeding function of screws: Double screws cross running, so that the material presents spiral step type forward transportation, it requires that the material must be free in the depth of mixing and friction between the two screws, but the double screw extruder between the spacing range is not too much, about 1.0mm-2.2mm , so, Large particles of raw materials hard walking in the twins screws. Colloquially speaking is: material no feeding.

2.On the maintenance of machine: if large particles are forced to feed, it will lead to increased friction of the screw, serious wear, screws shorter life, speed up the frequency of machine users to replace parts, and increase the cost.

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