Though equipment such as step motor, are not suitable for contact with high temperature, especially its temperature is too high, most of the time is the device has a problem. But for this kind of motor, its appearance even at 85 degrees Celsius temperature, also is normal phenomenon, you don't need to worry about. Because although stepper motor in high temperature, makes the motor demagnetization of magnetic materials, which can lead to torque decline, serious when can cause motor loss occur. Appearance but this situation is appeared in the motor temperature exceeds the maximum allowable case occurs, if the motor appearance although temperature is higher, but no more than allow maximum value, will not appear these phenomenon. And motor appearance allows, the highest temperature mainly depends on not step magnetic material in motor demagnetization, so generally in the demagnetization points of magnetic materials are above 130 degrees Celsius, demagnetization and some magnetic material also is as high as 200 degrees Celsius above, under the condition of motor appearance allows the highest temperature should be generally above 100 degrees Celsius. So, step motor appearance in 85 degrees Celsius temperature is normal phenomenon, will not bring bad effects because of the temperature on the motor. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone: