The high-power permanent magnet DC geared motor can be used as a high-power hand-cranked generator.
Nominal voltage AC220V rectifier power supply, suitable for voltage DC24V-220V, of course, the lower the voltage, the lower the speed and torque will be. If the load is not very heavy and the speed regulation range is very wide, with the corresponding speed regulator or voltage adjustment, the motor can be adjusted from more than 10 to more than 100 revolutions per minute.
Buy a motor and send it to a rectifier bridge. Follow the picture to simply connect the wires. Pay attention to distinguish whether it is used for a motor or a generator. It must be insulated and wrapped before powering on. Please pay attention to safety when using a high-voltage motor.
When it is used for a hand-cranked generator, you need to configure a handle yourself. The output voltage is determined according to the speed of the hand-cranking. For example, the output voltage is about 80V at 60 revolutions per minute.