The MagnaDrive Adjustable Speed Drive (ASD) uses breakthrough speed control technology. We designed it to reduce your total cost of ownership by lowering maintenance and operating costs, increasing process availability and improving system reliability.

Benefits of ASDs

ASDs control motors’ operating speeds by continually changing the electrical frequency as necessary. 

Ideal for pump, fan and blower applications, our MagnaDrive ASDs are available in sizes ranging from 5 to 4,000 horsepower and in speeds up to 3,600 RPM. 

While usually designed for process control, ASDs have other major benefits, including lower maintenance and operating costs and energy savings.

Lower Maintenance and Operating Costs

Vibration-related issues cause over 80% of rotary equipment failures. 

With our patented Air Gap technology, MagnaDrive motors transfer torque from motors to driven equipment without contact. Without shaft-to-shaft physical connection and the vibration-related issues that come with it, your risk of equipment trouble (and your maintenance and operating costs) is much lower.

This “disconnected connection” provides reduced vibration that increases bearing and seal life, which protects your investments.

Energy Savings

Our ASDs are nearly 100% efficient, with no energy loss from ancillary equipment. 

Simple, reliable and low cost, the MagnaDrive ASD also provides the energy savings of speed control without the problems that often accompany variable frequency drives. Our ASDs reduce system complexity, minimize vibration and eliminate alignment problems. 

Additionally, you can resize motor systems for lower cost, more efficient operation.

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MagnaDrive ASD Applications and Industries

Among others, these applications currently benefit from using the MagnaDrive ASD: 

  • Pumps
  • Fans
  • Blowers
  • Centrifuges
  • Bulk handling equipment

Our ASD also serves an array of industries:

  • Water and wastewater treatment
  • Pulp and paper manufacturing
  • Power generation
  • Oil and gas processing
  • Cement
  • Mining
  • Chemical and food processing
  • Irrigation
  • Maritime
  • HVAC 

These installations show significant energy savings and less system vibration.

Interested in Learning More?

At MagnaDrive, we use innovative permanent magnet torque transfer technology that improves industrial performance. Our experienced team is up for any challenge. We also welcome researching new magnetic technologies in collaboration with our customers. 

Request a quote or contact us for more details about our products and services. Call us at (425) 463-4700, or email us at

If you’d like to explore our technologies and products further, please visit our FAQ page.