ebm-papst AxiTwin 100 Counter-Rotating DC Fan

ebm-papst AxiTwin 100 Counter-Rotating DC Fan delivers high airflow with minimum space requirements. This fan consists of two individual fans connected with an innovative flange that works together by rotating in opposite/counter-rotating directions. This enables the downstream fan to convert residual swirl from the upstream fan into the airflow, which increases efficiency compared to individual fan solutions. The AxiTwin 100 counter-rotating fan operates from a 3.3V to 20V supply voltage range and 1KHz to 10KHz PWM frequency range. Typical applications include medical, industrial, renewable energy, server cooling, mass storage cooling, cabinet cooling, radio base station cooling, and 5G/IoT.


  • Technology:
    • Completely new design
    • Counter-rotating impellers
    • 2 independent drives (redundancy)
    • Compact aluminum flange creates less swirl, higher stiffness, and optimized heat dissipation
    • One power electronics for each fan stage
    • Suitable and efficient - 100mm frame size allows for optimal use in a 19-inch rack
  • Performance:
    • Noise and efficiency optimized
    • 319 CFM maximum airflow
    • 6.0 inches of H20 shutoff pressure¬†
    • Benchmark in air performance and noise
    • Long service life
  • Options:
    • PWM and analog speed control
    • Speed and alarm signal
    • Humidity protection
    • 3.3V to 20V voltage range
    • 1KHz to 10KHz PWM frequency range
    • VDE UL/CSA, CE, and CCC approved


  • Medical
  • Industrial
  • Renewable energy
  • Server cooling
  • Mass storage cooling
  • Cabinet cooling
  • Radio base station cooling
  • 5G/IoT

Schematic Diagram

Schematic - ebm-papst AxiTwin 100 Counter-Rotating DC Fan

Performance Graph

Performance Graph - ebm-papst AxiTwin 100 Counter-Rotating DC Fan

Exploded View

ebm-papst AxiTwin 100 Counter-Rotating DC Fan
Published: 2023-07-13 | Updated: 2023-08-09