Elta SMB650 Inline Mixed Flow Box Fan - 650mm Single Phase AC

The Elta SMB650 Inline Mixed Flow Box Fan – 650 mm Single Phase AC is a high‑capacity ventilation fan from Elta’s mixed‑flow Multiflow SMB series, designed for commercial and industrial HVAC duct systems. Featuring a heavy‑duty pre‑galvanised steel casing with Ductmate flanged connections, and a backward‑curved aerofoil mixed‑flow impeller, it delivers powerful airflow with excellent efficiency and reduced noise. Powered by a reliable single‑phase AC external rotor motor, the SMB650 is ideal for large extract and supply applications in factories, warehouses, retail spaces, workshops, and other large duct networks requiring strong, consistent ventilation performance.

Material & Build Quality

• Casing: Pre‑galvanised sheet steel with Ductmate flanged connections for secure duct installation

• Impeller: High‑efficiency backward‑curved aerofoil mixed‑flow blades

• Motor: Single‑phase AC external rotor with sealed bearings for durability

• Operating Temperature: Rated up to +60 °C

• Finish: Corrosion‑resistant protective coating

Specifications

• Product Type: Inline Mixed Flow Box Fan (Multiflow SMB series)

• Model: SMB650 / 4‑1AC (Single‑Phase AC)

• Fan Diameter: 650 mm

• Casing Material: Pre‑galvanised steel with flange connections

• Impeller Type: Backward‑curved aerofoil mixed‑flow blades

• Motor Type: Single‑phase AC external rotor motor

• Voltage: 230–240 V AC / 50 Hz

• Operating Temperature: Up to +60 °C

• Installation: Inline duct mounting with flanged ends

• Applications: HVAC extract and supply ventilation in industrial, commercial, and large building duct systems