Fläkt Woods 400mm Long Cased Axial Flow Extract Fan - Single Phase 40JM/16/4/5/40 – EJ411452

Fläkt Woods 40JM/16/4/5/40 – EJ411452

Long Cased Axial Fan | 4 Pole | 1 Phase Inverter | 400mm Diameter

The Fläkt Woods 40JM/16/4/5/40 is a high-performance, long-cased axial fan designed to deliver energy-efficient ventilation in a wide range of ducted air movement applications. Engineered with the renowned JM Aerofoil impeller, this unit provides exceptional airflow and pressure with minimal noise, thanks to aerodynamic precision and robust construction.

Ideal for commercial and industrial use, it’s a compact and reliable solution that meets the most stringent efficiency and acoustic demands.

Key Features

• Aerofoil Impeller Design: Enhanced efficiency and reduced SFP for lower running costs

• Low Noise Operation: Aerodynamic blade design ensures minimal sound generation

• Flexible Install Options: Available in short or long cased versions

• Compact & Lightweight: Easy to install and service at only 28.0 kg

• Tested to Standards: ISO 5801 and BS848 compliant for airflow and performance reliability

Specifications

• Max Airflow: 5,400 m³/h

• Motor Power: 250 W

• Motor Speed: 1,420 RPM

• Max Amps: 1.6 A

• Temperature Range: -40°C to +50°C

• Unit Weight: 28.0 kg

Impeller Assembly

• Blade Design: Custom Woods Aerofoil profile for optimal aerodynamic performance

• Hub Construction: Profiled steel-inserted hubs allow adjustable pitch for tailored airflow

• Manufacture: Precision die-cast aluminium alloy; X-ray inspected for structural integrity

• Balance: Complies with ISO 14694 (Grade G16 to G2.5)

• Fixing: Securely mounted with a key/keyway and locking compound or mechanical fixing

• Non-Overloading: Fan draws peak power within safe motor load limits

Casing & Build

• Material: Manufactured from mild steel to BS EN 10111 Grade DD11

• Construction: Welded casing with integral pre-drilled flanges for duct mounting

• Finish: Hot-dip galvanised to BS EN ISO 1461 for enhanced corrosion protection

• Configuration: Long cased version includes terminal box and inspection port

• Connection: Complies with BS EN ISO 13351 flange dimensions

Motor & Electrical

• Type: Squirrel cage, totally enclosed, S1 duty motor

• Phase: Single-phase (capacitor start and run)

• Voltage: 220–240V / 60Hz (other voltages available upon request)

• Ingress Protection: IP55 with drain plug

• Bearings: Ball or roller bearings with minimum 20,000-hour L10 life (ISO 281)

• Speed Control: Inverter compatible for efficient variable-speed operation

• Finish: Aluminium or painted cast iron, depending on model

Performance & Compliance

• Air Performance: Validated in AMCA-accredited Woods lab under ISO 5801 (Type D)

• Acoustics: Sound-tested to ISO 5136 in ducted environments

• Reverse Operation: Some configurations support reverse airflow; consult prior to use

The 40JM/16/4/5/40 model brings the trusted JM Aerofoil technology into a compact footprint without compromising on efficiency, acoustic control, or durability. Built for lasting performance in demanding ventilation systems.

For selection support or compatibility with inverter speed control or reverse mode, contact our expert technical team.