Is it true that cream from milk is separated by the loading method?

The above statement is false.
The process used to separate cream from milk is centrifugation. Centrifugation is a technique for separating molecules with different densities by rapidly spinning them in solution around an axis (in a centrifuge rotor). It is one of the most important and widely used techniques in the molecular biology laboratory.
The corrected statement would be, “Cream from milk is separated by centrifugation”.