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PCB-stator fan systems promise energy savings of up to 25%

February 3, 2026
Posted by Drives and Controls

Infinitum, the US developer of air-core motors with PCB stators, has unveiled a high-efficiency integrated fan system that, it claims, delivers more airflow per kilowatt as well as energy savings of up to 25% in HVAC and other applications. Infinitum’s EC Fan Systems combine a motor, a fan and a variable-speed drive, and are said to offer high power densities, reliable performance and quiet operation, while requiring fewer motors, drawing less kilowatts, and needing less electrical infrastructure than traditional fan systems.

Infinitum fan array

“As power constraints redefine what’s possible in mission-critical environments, doing more with less is no longer optional – it’s essential.”

— Ben Schuler, Founder and CEO of Infinitum

Read the full article at  drivesncontrols.com

“Our new EC Fan Systems are designed to fundamentally change how energy is used, enabling operators and OEMs to unlock more capacity and performance from the power they already have – while easing strain on infrastructure and the grid,” says Schuler. 

Key features of the fan system include:

  • Low energy consumption  Unlike conventional EC fans, which experience a drop in efficiency at partial load operating points, the Infinitum fans are claimed to maintain their high efficiencies over a wide operating range, and to deliver more airflow per kilowatt, with system efficiencies of 91%.

 

  • Ultra-low harmonics  Conventional harmonics filters are expensive and underperform, according to Infinitum, which says that the AFE (active front-end) technology built into its fan system maintains total demand distortion (TDD) below 5% across the entire load curve, while eliminating the need for external filters.

 

  • Fewer motors  Traditional EC fans rely on motors with fixed operating points. The new fan systems use motors rated from 1-15hp (0.745–11.2kW), allowing them to be sized precisely for the application. Around 20% fewer motors and fan systems are needed, reducing the current being drawn, as well as the electrical infrastructure (wiring, circuits and transformers) needed.

The fan systems are said to be simpler by design, with fewer components and built-in harmonic mitigation, and are claimed to be easy to maintain, with faster resolution of any issues, and a lower total cost of ownership over the lifetime of an installation.

Texas-based Infinitum’s patented air-core motors eliminate heavy iron cores and their losses, resulting in high efficiencies at all speeds. They are said to be 50% lighter and smaller than traditional motors, and ten times more reliable than iron-core designs.