The dry rotary vane vacuum pump achieves high-speed and precise separation and transportation of paper in the Feida system of the printing machine, avoiding paper adhesion and improving printing efficiency through negative pressure adsorption. Compared to traditional oil sealed pumps, the oil-free design eliminates oil mist pollution and ensures the cleanliness of printed materials; Intelligent frequency conversion control adjusts suction in real-time to adapt to different paper weights, reducing energy consumption by 30%. The case shows that a central vacuum system can replace multiple decentralized pumps, reduce noise, and save maintenance costs.