This model features a compact size and is easy to move, capable of working in narrow areas. The maintenance-free blower provides strong and lasting suction, suitable for metal processing, pharmaceutical and chemical industries, daily cleaning, and a series of cleaning work supporting polishing and other operations, completing suction of dust, water and iron filings in one pass. The control switch adopts a Schneider control system with overload, overheat and phase-loss protection and imported switch circuits for safe and reliable operation. The dust collection tank is a 50L detachable stainless steel type with wheeled handle for easy cleaning. The filter bag adopts a super-large star-shaped filter with polyester coating, effectively preventing dust clogging. The vertical dust removal device shakes the dust on the filter mesh from the outside, effectively cleaning the filter mesh and preventing clogging. The air outlet adopts professional silencing technology design for quiet and stable operation. The pressure monitoring system uses a vacuum negative pressure gauge to monitor the internal filter condition in real time with clogging alarm.