The electric tube expander is a new generation of convenient and fast electric tube expander designed and developed by our company to meet the needs of various kinds of pipes in condensers, oil coolers, heaters and heat exchangers. This machine uses the working current of the drive motor to reflect the load, that is, the drive motor can provide a certain amount of torque under a certain working current value, and the corresponding amount of torque can generate a certain amount of expansion (expansion force) through rotating the expander, so as to accurately measure and control the working current value of the drive motor, and provide and control the required expansion (expansion force).