I have not so much knowledge in electrical stuff, so I am wondering, how the motor is acting with two different voltage
The motor should be strong enough to sand when he is getting 110 Volts
In Europe he get the double volts, does this mean that the motor is running double faster, means that the minimum turns per minute is not anymore 200 but 400 rpm?
Defintely you need in Europe a plug adapter for the US-plug
When you use an european hairdryer (230V) in America (north and south) with 110V - -> it is like a V8 motor running only with 2 cylinders - It needs hours to dry the hair (and mine are short)
Motors 101:
The speed of the motor depends on the number of poles and, if an AC motor, the cycle rate of the power. For Europe, AC power is 50 cycles per second, or 50 hertz. For America, it is 60 hertz. The speed of the motor is the number of poles times the cycle rate, so in America a 4 pole motor using 60 hertz power runs at 1800 rpm.
The energy output the motor is basically the voltage times the current (volts x amps). If the voltage is higher but the motor uses less current in amps, the energy output could equal a motor that uses more current at lower voltage.
There are many other factors that affect how motors work. An AC motor functions differently than a DC motor. A DC motor has more torque at lower rpm than a typical AC induction motor, so DC motors are popular in cranes and positioning motors in CNC machines. Different motors have different applications.
As for voltage rating, if you run a motor designed for 110 volts with 230 volts, you will burn out the windings. If you use a 230 volt motor on 110 volts, you will also damage the motor. Use 230v on a motor wired for 230v. There exist many motors that are rated to run on either 110v or 230v, but how you connect the wiring is different for 110v than it is for 230v. Many industrial motors are designed to allow you to connect the stator windings two different ways so you can use it for both voltages. If you want to run a 110v motor in 230v, you need a step-down transformer to reduce the voltage to 110v. Otherwise, you get a very exciting electrical fire.
Suffice to say, electrical machinery gets complicated. As a marine engineer, I was trained in basic operation, maintenance and repair of motors and switchgear. What I described above is a very simplified answer, Uwe.