The dust load vacuum degree testing device for dust collectors is manufactured in accordance with item 5.9.2 of IEC60312 and GB/T20291.1 standards (national and European standards), mainly used to test the vacuum degree data at the connection head after inhaling specified test dust. Display and set relevant time control and real-time vacuum degree values through PLC+7-inch touch screen. Control the system and automatically record relevant test data. Simulate load testing of the vacuum cleaner through a pressure equalization box and a 30MM orifice plate, with the relevant vacuum pressure values taken in real-time by the PLC, and the relevant test data exported via USB.