Nationwide UK Delivery
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Nationwide UK Delivery
Trade Accounts Available
Technical Support
| Availability | In Stock & Ready to Dispatch |
| Bulk Orders | Project & Bulk Quantities Available |
| In-House Logistics | Reliable Delivery with Standard and Express Shipping Options |
The Elta SMB400/4‑1AC Inline Mixed Flow Box Fan – 400 mm is a high‑performance duct‑mounted ventilation fan engineered for commercial and industrial applications. Part of Elta’s Multiflow SMB range, this mixed‑flow box fan combines a rugged pre‑galvanised steel casing with a backward‑curved aerofoil impeller to deliver high volume airflow with excellent efficiency and reduced acoustic emissions. Designed for easy installation with Ductmate flange connections, and suitable for temperatures up to +60 °C, this single‑phase AC unit is ideal for HVAC extract and supply systems in workshops, factories, retail spaces, and large duct networks.
Casing: Pre‑galvanised sheet steel construction for strength and corrosion resistance.
Impeller: Backward‑curved aerofoil blades in a mixed‑flow design for high airflow and efficiency.
Motor: Single‑phase AC external rotor with sealed bearings for reliable operation.
Flange Connections: Ductmate flanges at each end for straightforward duct installation.
Operating Temp: Rated for operation up to +60 °C, suitable for general ventilation.
Product Type: Inline mixed flow box fan (Multiflow SMB series)
Model: SMB400/4‑1AC (Single‑Phase AC)
Fan Diameter: 400 mm
Motor Type: Single‑phase AC external rotor with sealed bearings
Casing Material: Pre‑galvanised steel
Impeller Type: Backward‑curved, aerofoil mixed‑flow blades
Flow Performance: High volume with efficient static pressure performance (model dependent)
Operating Temp: Up to +60 °C
Installation: Inline duct mounted with flanged ends for ease of connection
Applications: HVAC extract and supply, ventilation in workshops, industrial facilities, commercial buildings, and large duct systems
Estimated Delivery: 2–5 Working Days
Shipping costs will be calculated during checkout.
Check delivery options at checkout
The Elta SMB400/4‑1AC Inline Mixed Flow Box Fan – 400 mm is a high‑performance duct‑mounted ventilation fan engineered for commercial and industrial applications. Part of Elta’s Multiflow SMB range, this mixed‑flow box fan combines a rugged pre‑galvanised steel casing with a backward‑curved aerofoil impeller to deliver high volume airflow with excellent efficiency and reduced acoustic emissions. Designed for easy installation with Ductmate flange connections, and suitable for temperatures up to +60 °C, this single‑phase AC unit is ideal for HVAC extract and supply systems in workshops, factories, retail spaces, and large duct networks.
Casing: Pre‑galvanised sheet steel construction for strength and corrosion resistance.
Impeller: Backward‑curved aerofoil blades in a mixed‑flow design for high airflow and efficiency.
Motor: Single‑phase AC external rotor with sealed bearings for reliable operation.
Flange Connections: Ductmate flanges at each end for straightforward duct installation.
Operating Temp: Rated for operation up to +60 °C, suitable for general ventilation.
Product Type: Inline mixed flow box fan (Multiflow SMB series)
Model: SMB400/4‑1AC (Single‑Phase AC)
Fan Diameter: 400 mm
Motor Type: Single‑phase AC external rotor with sealed bearings
Casing Material: Pre‑galvanised steel
Impeller Type: Backward‑curved, aerofoil mixed‑flow blades
Flow Performance: High volume with efficient static pressure performance (model dependent)
Operating Temp: Up to +60 °C
Installation: Inline duct mounted with flanged ends for ease of connection
Applications: HVAC extract and supply, ventilation in workshops, industrial facilities, commercial buildings, and large duct systems
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Shipping Information • UK-wide delivery, including Northern Ireland, Scottish Highlands and remote locations. • Orders are processed within 1–2 working days (Mon–Fri). • Standard UK delivery takes approximately 2–5 working days from purchase. • Shipping costs are calculated at checkout based on order size, weight and delivery location. • Free delivery is available on selected orders. Additional charges may apply for large, bulky or remote-area deliveries. • Tracking details are provided once your order has been dispatched. • International shipping is available. Customs duties, taxes and import fees may apply and are the responsibility of the customer. • If your order arrives damaged, incorrect or incomplete, please contact us within 7 days of delivery. For full details, please see our Shipping Policy.
Returns must be requested within 7 days of delivery and approved before being sent back. Items must be unused, undamaged, and in their original packaging. Customers are responsible for return shipping costs, and a restocking fee of up to 25% may apply. Refunds are processed within 3–5 working days after inspection. For damaged, faulty, or incorrect items, please contact us within 7 days of delivery.
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