Stepper motor stepper motor in the process of operation of the temperature control is very important, because the temperature too high can easily lead to motor demagnetization phenomenon, low temperature motor will be hard to operate, so the process of the functioning of the stepper motor in temperature target appears particularly important. Stepper motor temperature too high will make the first demagnetization of magnetic materials, led to the decrease of the moment and even out of step. And motor to the surface of the highest temperature should depend on different points of demagnetization magnetic material; Demagnetization of magnetic materials, in general, some are above 130 degrees Celsius, some even as high as 200 degrees Celsius above, so the stepper motor surface temperature of 80 - the temperature of 0 degrees Celsius90 degree completely normal. Stepper motor in the process of operation, the temperature target appears particularly important, step motor only under the standard temperature operation can play the best efficiency, operation temperature too as may lead to stepper motor demagnetization and properly used, it is a fatal damage on motor. So we should be paid attention to in the daily operation in the process of manipulation of the stepper motor temperature, temperature is too high, should be in time to stop using, cutting machine failure phenomenon. Reasonable grasp the temperature is very important.