High-thrust spiral motor : DigInfo

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The Yasutaka Fujimoto Laboratory at Yokohama National University is engaged in spiral motor research.
The spiral motor is configured by joining together a spiral shaped rotator designed with a center shaft and a spiral shaped stator of wound coils. The male screw is inserted in the female screw and rotated, and this screw mechanism is used to produce the back and forth movement of the screw as linear motion. While there are many motors that move linearly, the spiral motor has a wider magnetic field surface area and can output five times the force of a conventional linear motor. Applications are expected in a variety of industrial fields.
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