1: Stepper Motor: Advantages: Stable performance, affordable price, easy maintenance, suitable for most operators
Disadvantages : slow moving speed

2: Subdivision motor: Advantages : affordable, easy to maintain, average idle shifting speed
Cons : No power-off memory

3: Servo motor : Advantages : stable performance, multiple configurations can be selected, and fast moving speed
Disadvantages : more expensive, a wide variety, higher maintenance costs

4: Linear Motor: Advantages: No need for screw drive, high positioning accuracy, fast idling shifting speed
Disadvantages : expensive, must be used with imported high-precision grating scale, small torque , easily affected by temperature difference

To sum up: linear motor is the most rational control method, but the price is extremely expensive, and the market cannot be promoted on a large scale. At present, only high-end slow wires are used; after most manufacturers use servo motors, they claim that the accuracy is greatly improved and the speed is faster; This is all nonsense: because the servo motor must be used together with the lead screw guide rail, and the lead screw itself is not accurate enough, how to improve the accuracy by only driving the motor is a group of people who do not understand technology, playing tricks and fooling around Special reminder from customers : AC servo motors are only faster when moving (commonly known as: idling), and cannot actually improve the cutting efficiency of machine tools (cutting efficiency is determined by the control system and discharge design)