Which Drive Method Is Better For Medium Wire Cutting?

The drive unit of medium wire-cut EDM includes a drive device and a motor, with the primary difference lying in the motor, as the performance of motors varies across different manufacturers and models. The drive motors for medium wire-cut EDM are categorized into: stepper motors, hybrid motors, and servo drive motors.

Stepper Motor: The stator has multi-phase magnetic poles and excitation windings, while the rotor has no windings. The stepping operation is achieved by the reactive torque generated by the excited stator windings.

Hybrid Motor: Its rotor uses permanent magnets, achieving stepping operation through the magnetic force generated by excitation and magnets. For a long time, stepper motors dominated most of the market. They offer high step accuracy with no cumulative error, but their efficiency is low, and their load capacity, pulse equivalent, and speed regulation range are relatively limited.

Servo Motor: The rotor speed of a servo motor is controlled by input signals and can respond quickly. In automatic control systems, it serves as an actuator and features small electromechanical time constants, high linearity, and low starting voltage. It converts received electrical signals into angular displacement or angular velocity output on the motor shaft.

Servo motors enable precise control of speed and position accuracy, converting voltage signals into torque and speed to drive controlled objects. As a result, servo motors have gradually replaced stepper motors. Servo motors operate smoothly with minimal torque fluctuation, offer long-term overload capability, and can quickly accelerate from very low starting frequencies to specified speeds.

From the comparison of the three drive methods for medium wire-cut EDM machines described above, it is evident that servo motor-driven medium wire-cut EDM is superior. Of course, its cost is relatively higher. Suzhou Longkai Electromechanical Technology Co., Ltd. is an enterprise integrating R&D, manufacturing, and sales. The servo medium wire-cut EDM machines produced by the company are reliable in quality, and direct factory pricing helps save procurement costs. We welcome interested agents from all sectors to visit and negotiate!