The HUADA TVD-30+ is a 22 kW two-stage permanent magnet VSD screw air compressor for production lines with varying compressed-air demand. At 0.7 MPa, the 0.6-0.8 MPa version is listed at 4.5 m³/min and the 0.6-1.0 MPa version at 3.6 m³/min. The air-cooled package uses an external oil separator.