1, judgment, need to how much torque: static torque is to choose one of the main parameters of step motor. When load is big, need to use big torque motor. Index of large torque, motor appearance is also big. 2, judgment, motor speed, high speed requirements, choose the phase current is bigger, smaller inductance motor, in order to increase power input. And when choosing drive with higher power supply voltage. 3, and the choice of motor installation specification: such as 57,86,110, mainly related to the torque requirements. 4, determine the positioning accuracy and vibration requirements: determine whether segmentation, need how many segments. 5, according to the current of motor, segmentation and power supply voltage selection drives. 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: