1. Excellent milling efficiency and performance. 2. Compact design of grinding roll is capable of controlling the roll clearance precisely, and thus to implement high-efficiency and stable grain milling; 3. The servo control system is capable of controlling the engagement and disengagement of feeding rolls and grinding rolls; 4. The feeding door is regulated automatically by the pneumatic servo feeder as per signals from feed hopper sensor； 5. Sturdy roller set and frame structure can assure a long service life and reliable performance; 6. Reduce the floor area occuiped, lower investment cost.