Custom Factory Price Flexible Hose Screw Conveyor High Efficiency Corn Rice Grain Suction Machine for Farm Agricultural Handling This high-efficiency flexible hose screw conveyor, also known as grain suction machine, is professional agricultural conveying equipment for farms. It is specially built for transferring corn, rice, wheat and other granular grains. Supported with customized hose configurations, it greatly cuts down heavy manual labor and improves grain loading