Coreless Horizontal and Vertical Shaft Type Motor Providing energy saving solutions for heavy duty industrial equipment Product Overview The GREEF NEW ENERGY GDG series disc type permanent magnet generator features a unique coreless design where the spindle and rotor are arranged in a disc shape. The stator is fixed at the center while the rotor spins on both sides, with the spindle containing only windings and no iron core. Both stator and rotor are designed as flat discs
“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”
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