The present invention provides a process for efficiently obtaining polyethers having its high degree of polymerization by easily polymerizing substituted epoxides which could hardly or could not be made so far to provide a high degree of polymerization. It includes a drum-shaped tool having a rotation axis x orthogonal to the axis z and rotationally driven around the rotation axis x. 5 to 5 g10 min, and a melting point of 150 degrees C. The second configuration data is transmitted from the data device to the second controlling device. The ramp system further includes a guide strut that is pivotally mounted to the ride-on access plate and the intermediate element. The slope control code controls the slope of the first output signal and the slope of the second output signal.