Roots Type Vacuum Blower

Roots Type Vacuum Blower Flow Capacity up to 7200 m3/hr Vacuum from (-100) mbar to (-800) mbar, Pressure up to 1000 mbar. Low speed, low temperature raise Constant & Stable air flow Double lubracation oil chamber (tank) Over 10 years operation running Tri lobe roots blower & Twin lobe roots blower available Casting Iron constructure How to make Huadong Airus Blowers (Roots type blowers), watch videos https://www.youtube.com/watch?v=aKDtV9W-ufM (how to make Casing/ main