Advanced Electric Machines’ (AEM) HDRM300 motor sets new record for operational efficiency in commercial transport applications.

A highly sustainable, UK-engineered electric motor has set new standards for efficiency after successfully reaching an operational milestone of four million kilometres (2.5 million miles) in commercial transport operations. The achievement was recorded across fleets of urban buses and light rail trains operated by a major transportation authority in Asia.

The fleet of HDRM300 motors, designed and engineered in the UK by Advanced Electric Machines, were initially deployed in 2022 and have since demonstrated exceptional reliability and performance in highly demanding applications.

“This is a significant achievement that proves the durability of our AEM HDRM technology in the most arduous applications in the commercial vehicle market,” said James Widmer, CEO of AEM. “It builds on the historical reliability advantage of reluctance motors and demonstrates to potential customers that our innovative technology delivers exceptional longevity in real-world conditions.”

The HDRM300’s success can be attributed to AEM’s proprietary magnet-free design, which ensures robust performance particularly under heavy loads. Unlike permanent magnet machines, AEM motors are not sensitive to high operating temperatures, enabling reliable operation in demanding applications such as rail transport.

The fleets utilising the HDRM300 motors have delivered consistent performance across regularly scheduled routes since deployment. The mileage achievements were validated through systematic tracking of operational data from the transportation operators.

AEM’s motors also contribute to greater sustainability in public transportation. The electric propulsion systems provide significant CO2 reductions compared to conventional diesel-powered vehicles, while delivering cost savings through reduced fuel expenses. The HDRM technology further enhances these benefits with superior efficiency at higher speeds and loads compared to competing motor technologies.

This milestone reinforces AEM’s position as a leading innovator in electric motor technology for demanding commercial applications, particularly in public transportation and heavy-duty vehicles where reliability and performance under stress are paramount.

*Please note the omittance of ‘S’ in the product name (formally HDSRM). This is a product line rebrand and also applies to AEM’s HDRM150 motor.