The rotational speed for front loading washing machine is usually 400,800,1000,1200 or 1400 RPM, most of which are concentrated in 800 RPM -1200 RPM. More importantly, the speed refers to the speed of washing machine dehydration.
On the one hand, washing machine clean the clothes by detergents. On the other hand, it also spin and swing the dirty water and separate it away from the clothes to achieve the cleaning effect. The most suitable rotational speed refers to the maximum speed of the barrel when the washing machine is dehydrating and drying not the motor speed.