Mass Magnetics recycles EV motor magnets into robotics and defense supplies

Y Combinator · youtube · 2026-09-12

Y Combinator startup Mass Magnetics makes USA-made magnetics for robotics and defense. Rare earth magnets sit in nearly every electric motor, but 90% of the material is conventionally thrown away. The company recycles magnets from EV motors into new ones, avoiding much of the capital-intensive refining required by mining.

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