When procuring industrial potato starch machinery, you must prioritize processing capacity (measured in tons of raw potatoes per hour) and the starch extraction rate. High-efficiency systems should achieve an extraction rate of at least 95%. Key components to inspect include the rasper (crushing unit), which should feature stainless steel saw blades for durability, and the centrifugal sieve, which must have a multi-stage design to ensure maximum fiber separation. Additionally, ensure the hydrocyclone station is made of food-grade SUS304 stainless steel to prevent corrosion and ensure product purity.