Olsen Actuators brings you ESI Motion’s Atom, leading the industry with its extremely small size and low weight. The Atom is a high-performance digital servo controller that can source 100 Amps with an 80 VDC bus to drive the most demanding applications.

Ultra-Low Weight & Compact Sized Atom Dual-Axis Servo Drive Module

  • Continuous Motor Current: 100 Amps

  • Continuous Output Current Without Heatsink: 30 Amps

  • Max Output Power: 7700W (80 VDC Bus, Motor Current 100 Amps peak-of-sin)

ESI Motion’s servo drive systems are designed for precision defence, aviation, automotive, robotics, and specialised industrial applications where size and weight are critical. ESI Motion’s Dual-Axis Atom incorporates a field-proven rugged controller and high-efficiency wide-bandgap semiconductor-based power driver modules and offers multiple configurations. It is designed and manufactured in ESI Motion’s USA facility and complies with a wide range of defence and industry standards. Options include a selection of input voltages, output current amplitudes, and feedback devices. It comes with an industry benchmark user interface allowing the most flexible and precise system integration and control.

NEW!!! EtherCAT is now an available option!

If you need a 50A single-axis version, check out the Proton!

Other highlights include:

  • Bus Voltage Range: 8VDC – 80VDC
  • Wide Operating Temperatures: o - 55°C to 100°C – Aerospace, o - 40°C to 85°C – Industrial, o - 30°C to 60°C – Commercial
  • Fully Digital High-Performance Drive
  • 40 kHz PWM Frequency Offered Standard (Consult factory for PWM frequencies up to 100 kHz)
  • Software Configurable to drive a Single Motor or two Independent Motors
  • Multiple Feedbacks Included: Dual Resolver, Dual Quadrature Encoder, Dual BiSS-Co Dual HALL, Dual Sensorless
  • Communication Interfaces: CAN, RS-422
  • CANOpen and EtherCAT (Coming Soon)
  • MIL-STD-883 Temperature/Vibration Acceptance Available
  • Size: 45.5mm x 37mm x 10.7mm (1.79” x 1.46” x 0.42”)
  • Weight: 53.9g (1.9 oz)
  • Torque, Velocity, or Position control
  • Embedded Motion Controller, Coordinated Motion 2+ Axis
  • Configurable, user-friendly GUI with Integrated Oscilloscope
  • 5 Digital IO• Compliant to IPC-610 Class II (Class III available)
  • Chassis-cooled
  • I/O Board available
  • Customisable Solutions (Including Radiation Tolerant)


  • Attack helicopter turret drive
  • Robotic arm positioner
  • Airborne antenna stabilizer
  • Radar systems

Customisation Available

  • Custom Ports
  • Firmware 
  • PWM Frequency changes
  • Mechanical modifications/repackaging
  • Development and integration services
  • Design and build cables & harnesses
  • Design and build custom solutions
  • Custom software protocols & firmware
  • Full program design and development support

Olsen Actuators and ESI Motion have the expertise to customise a solution for your project’s needs. Instead of taking an off-the-shelf product and having to customise in house, let Olsen and ESI do the heavy lifting and adapt your drive to your specific project's requirements, nothing is off the table. Just let us know, and we will work with you to engineer a solution.

Contact us today at info@olsenactuators.com to see how we can tailor a solution for you.

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