Advanced Electric Machines unveils next electric motor
The HDRM300C features plug-in connectors rather than gland fittings, as well as strengthened internal components. The motor also features an improved motor cooling system which the company states will enable commercial vehicles to work for longer without overheating.
AEM claims that as a result of the upgrades, the new motor achieves conductor slot fill rates of over 80% – against conventional wire layouts which it says typically achieve less than 60% fill rates.
Samples of the HDRM300C are being made available this month (March) with production due to begin in Q4 of 2025.
James Widmer, CEO of Advanced Electric Machines, said: “By combining our patented coil compression technology with enhanced thermal management and improved speed capabilities, we’re delivering a motor that sets new benchmarks for efficiency and performance. For the transportation industry, it means more capable electric vehicles that are more cost effective to operate and maintain.”
It marks the follow-up to AEM’s earlier HDRM150, the first to feature AEM’s coil compression method. This involves pre-winding coils to fill gaps and air pockets in the electric motor, then compressing the coils to eliminate these gaps. AEM says this produces more power output without a need to increase size or weight.
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