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Motor Components Thinner Than a Human Hair

At the heart of every high-efficiency electric motor lies a component most people never see: the lamination stack. These are not simple metal pieces; they are precisely engineered thin steel sheets, often thinner than a human hair, that are stacked together to form the motor's stator and rotor. The reason for this intricate design is to combat a hidden enemy of motor efficiency: eddy currents. When a solid metal core is exposed to the motor's rapidly changing magnetic fields, it acts like a short-circuited turn, generating swirling currents that produce significant heat and waste energy.

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