Elta SMB550 Inline Mixed Flow Box Fan - 550mm Single Phase AC

The Elta SMB550 Inline Mixed Flow Box Fan – 550 mm Single Phase AC is a high‑performance ventilation fan from Elta’s Multiflow SMB range, engineered for commercial and industrial HVAC systems. Built with a heavy‑duty pre‑galvanised steel casing and Ductmate flanged duct connections, this mixed‑flow box fan delivers powerful, efficient airflow with reduced acoustic noise. The backward‑curved aerofoil impeller ensures strong air movement and consistent performance. Powered by a reliable single‑phase AC external rotor motor, the SMB550 is ideal for supply or extract ventilation in large duct networks, factories, warehouses, and commercial buildings.

Material & Build Quality

• Casing: Pre‑galvanised sheet steel with flanged connections for easy duct mounting

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

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

• Operating Temp: Rated for operation up to +60 °C

• Finish: Corrosion‑resistant protective coating

Specifications

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

• Model: SMB550 / 4‑1AC (Single‑Phase AC)

• Fan Diameter: 550 mm

• Casing Material: Pre‑galvanised steel with Ductmate flanges

• 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 ambient air

• Installation: Inline duct mounting with flange connections

• Applications: HVAC supply/extract ventilation, industrial and commercial duct systems, warehouses, workshops, and large ventilation networks