What Is a Marine Fan?

A marine fan is a mechanical device that moves air through shipboard ventilation systems—bringing in fresh air or removing hot, contaminated, or humid air from enclosed spaces. They’re essential for maintaining safe, breathable, and regulated environments onboard.

Why Ventilation Matters

Onboard ships and platforms, proper airflow is critical. Our marine fans:

  • Supply fresh air to machinery rooms, crew areas, and cargo spaces
  • Remove heat, fumes, and moisture from enclosed areas
  • Support fire safety and gas dispersion in emergency situations
  • Help systems meet naval and commercial compliance standards

Our marine fans are built to perform under pressure and designed to last in extreme marine conditions:

  • Constructed with corrosion-resistant materials like marine-grade aluminium or coated steel
  • Available in axial and centrifugal configurations for different system needs
  • Sealed motor options for humid and hazardous locations
  • Designed for low noise and vibration in line with naval acoustic requirements
  • Fully tested to handle salt spray, shock, and temperature extremes

Marine Fans: AC & DC Options for Every Vessel

Air Defence marine fans are engineered for high performance, low noise, and long life in harsh conditions. We offer both AC and DC-powered models to meet various marine electrical setups—from large naval vessels to compact service boats.

Available Types:

  • AC Fans: High-power axial and centrifugal models for HVAC and engine rooms
  • DC Fans: Low-voltage, efficient models for battery systems, electronics cooling, or mobile vessels

Features:

  • Explosion-proof and spark-safe options
  • Corrosion-resistant materials
  • Variable speed control
  • Quiet, vibration-resistant mounts

Short Case Axial

  • Single phase and 3 phase options
  • Sizes from 250mm to 560mm diameter, able to provide over 3 m3/s
  • Speed controllable
  • Casing finished in Polyester Epoxy coating
  • Extensive range of matched ancillary equipment available

Long Case Axial

  • Single phase EC and 3 phase options
  • Sizes from 315mm to 2000mm in diameter, able to provide over 100 m3/s
  • Speed controllable
  • Casing hot dipped galvanised or manufactured from 316SS
  • Extensive range of matched ancillary equipment available

Mixed Flow

  • Single phase
  • Sizes from 100mm to 315mm diameter, able to provide over 0.50 m3/s
  • 2 speed or speed controllable with 0-10v signal and 4-20mA signal
  • Built in run-on-timer
  • Perfect for void ventilation and compartment extraction

Centrifugal

  • Single phase EC and 3 phase EC
  • Ability to provide over 3 m3/s
  • Speed controllable
  • Suitable for higher pressure supply or exhaust requirements

Frequently Asked Questions

01 | What types of marine fans do you offer?

We supply axial, centrifugal, inline, and mixed-flow marine fans—customised for size, power, and use case.

Yes. All fans are built with marine-grade materials and protective coatings to withstand corrosive conditions.

Absolutely. We provide units that meet MIL-STD and naval technical requirements.

Yes. We offer IECEx/ATEX-rated models for engine rooms, fuel areas, and offshore platforms.

Fans should be checked regularly, but our designs make it easy to access motors and bearings for servicing.

Request a Quote

Need high-performance marine fans for your ship or offshore system?

Request a Quote today and talk to our experts about airflow solutions that work under pressure, in Australia’s toughest environments.