Features: Negative pressure conveyor machine Designed for recovering copper ore, steel shot and other abrasives Consists of gravity separator, cyclone dust extractor, filter dust extractor, vacuum pump, silencer and electric control cabinet Compact and solid structure Water washable Stable recovery function Low-power consumption Advanced electric control system Very easy to operate Specifications: Power: 90kW Power source: 380V/50Hz Vacuum pump: ST250SCBF Noise: ≤85 db(A) Maximum convey distance: Horizontal:20mm;Vertical:30mm Capacity: 6-9t/h Air volume: 50 m3/min Sand collection tank volume: Volume: 8t Φ1700×3000 mm Concentration of dust emission: 10 mg/m3 Filtration area: 64m2/polyester synthetic fiber,water washable