The magnesium oxide dry granulation machine 2000kg $r $n $r $n physically separates the material conveying area from the granulation area. The material is stably fed into the upper part of the granulation chamber through the conveying screw inside the box, rather than directly impacting the pressure roller. There is a support plate in the granulation room, with feeding holes on the plate, facing the pressing space of the pressure roller below. The key is that a pair of pre pressing plates that can move towards each other are set up to slide above the support plate. The "preloading space" formed between the two plays a key role in buffering and pre forming. Workflow: After the powdered raw material falls into the pre pressing space, two pre pressing plates periodically approach each other to pre press the loose raw material;