High Pressure Vortex Blower Regenerative Industrial High-Pressure Commercial Blowing,This regenerative fan features a dual-purpose design for both blowing and suction, constructed with a one-piece aviation aluminum shell that is fireproof, high-temperature resistant, and offers excellent heat dissipation. It includes a powerful copper core motor with fully sealed steel bearings and a double-sided all-aluminum impeller, utilizing centrifugal air circulation for smooth, low-vibration operation to enhance work efficiency. Features: 1. Durable Material: Made with a one-piece aviation aluminum shell and double-sided all-aluminum impeller, providing fireproof, high-temperature resistance, and superior heat dissipation. 2. High Performance: Equipped with a powerful copper core motor and fully sealed steel bearings, enabling centrifugal air circulation for high wind pressure, fast speed, and no air stagnation. 3. Thoughtful Design: Incorporates a dual-purpose blowing and suction design, with a built-in silencer sponge in the air duct and dust filters at both the inlet and outlet. Specification: Number of phases: single phase Speed: 2980rpm/min Operating temperature: -40℃ to 40℃ Inlet temperature: -40℃ to 80℃ Power: 120W, 180W, 250W, 350W, 550W, 750W, 1100W Maximum wind pressure: 7.5 kPa, 8.5 kPa, 9.5 kPa, 11 kPa, 14 kPa, 21 kPa, 24 kPa Maximum suction: 6.7 kPa, 7.6 kPa, 8.6 kPa, 10 kPa, 13 kPa, 20 kPa, 22 kPa Maximum ventilation depth: 0.5m, 0.6m, 0.7m, 0.8m, 0.9m, 1m, 1.2m Packing list: 1 x regeneration fan 1 x instruction manual