The new disassembled high-power DC motor vacuum cleaner fan, the motor is a 545 front and rear ball bearing motor, long-life extended compensation carbon brush, nominal voltage 18.5V, power 120W, this fan is shipped in bulk, and some motors have slight friction marks , does not affect the use of functions, the overall condition of the fan is still very good, the diameter of the internal aluminum alloy fan blade is 62mm, and the impeller is very new.
There are 2 specifications of the fan arriving, the appearance and size are basically the same, and the performance parameters are also similar, that is, the wiring position of the motor is a little different, and it will be shipped randomly without requirements.
The nominal voltage of the motor is 18.5V, and the measured voltage between 12-20V can work normally. Note that the red dot or the + sign is the positive pole. Although the positive and negative connections can be reversed, the suction force will be much smaller, and the power will be much larger. , Seriously, it may burn the motor. Be careful not to connect the positive and negative poles incorrectly. The measured 12V voltage working current of the motor is 4.5A, the power is 54W, the speed is 23000 rpm, the 18V voltage working current is 7A, the power is 126W, and the speed is 34500 rpm. The test is for reference only.
The fan weighs about 228 grams.