PMAC Innovation

Air Moving innovation

World Leader in Variable Speed 

An OEM was using a 10-horsepower belted NEMA Premium® induction motor in conjunction with a Variable Frequency Drive (VFD) in their fan assembly that delivered adequate performance, but their end user demanded higher efficiencies and direct drive (elimination of the belt system). A completely new approach to providing these efficiencies was required.


Air Moving Innovations

  • ATEX Motors
  • ECM Fan Motors
  • HubFlex® Shaft Couplings
  • NEMA Premium® Motors
  • Medium Voltage Drives
  • PMAC Radial Flux Motors
  • Clean Room
  • Smoke Extraction Motors
  • Variable Speed Motors


Exceptional Solutions that Save Energy 

We offer an array of exceptional solutions for the air moving industry. Our innovations include: high efficiency NEMA and IEC motors, ECM technology for fans, solid state starters and medium voltage VFDs that are “Performance Matched” to motors, and PMAC integrated motors that provide IE4 efficiencies for a myriad of air moving applications.

Additionally, the OEM can eliminate the belt and sheave system that was previously used as a torque multiplier along with reducing the ventilator’s weight and size due to the motor’s direct drive technology.


Value Proposition

We move air efficiently, quietly, and reliably!   

Our brands have developed a reputation for products that meet the tough demands of the air moving industry: from highly engineered controls and power transmission products to low and medium voltage motors that operate in the harshest environments and ambient conditions.  

We provide market leading solutions that reduce energy consumption, improve process throughput, provide sustainability, and increase productivity and uptime. 


High efficiency mechanical solutions are at the cutting edge of what we do best.  We are recognized for producing reliable solutions that solve problems in critical applications where performance is crucial.

  • The SealMaster® brand USRB spherical mounted roller bearings can provide uptime enhancements, unmatched performance, and dimensional interchangeability, thus, reducing operating cost.
  • Our Browning® brand of high efficiency v-belts provides maximum performance and service life. Our variable pitch sheaves incorporate a unique manufacturing design that ensures precise adjustability, balance, and unmatched performance.

Our Marathon® brand has been a leader in the motor industry for over 100 years, creating motors that have stood the test of time in the most demanding applications.    

  • The Blue Chip XRI® family of motors has led the motor industry for over 30 years in “Mission Critical” applications where NEMA Premium® IE3 efficiencies and severe duty construction are required.
  • The BlackMAX® and BlueMAX® inverter duty motors, with the patented MAX GUARD® insulation system, have stood the test of time as the choice of the design engineer when specifying variable speed motors for the most demanding applications. With unlimited lead length and protection against the potential destructive forces associated with the high switching frequencies of today’s PWM drives, you can be assured of reliable and dependable performance year after year. 


Today, our Marathon® brand builds on their 100-year-old legacy of innovative and efficient designs by the joining of magnetics, motors, and controls into a single leading technology. This allows for unparalleled power densities, unprecedented performance, and unmatched efficiencies.

  • SyMAX® and NovaMAX™ PMAC radial flux motors allow you to imagine and implement possibilities in a host of air moving applications that no conventional induction motor or competing variable speed technology could provide.


Our expertise goes beyond just product engineering to include a deep understanding of your applications so that together we can apply the best solutions to optimize your product design, reduce overall cost, and increase your equipment's performance.


*NEMA and NEMA Premium are trademarks of National Electrical Manufactures Association. All Rights Reserved.

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