Accuracy Counts Control: Stepper motors do a great job of positioning the needle on an embroidery machine. This is really necessary for these fine, tight detailed embroidery jobs.
Accuracy- Stepper motors move in pretty precise steps which means they position the needle very well. This is needed if you want your embroidery designs to come up well.
Control: The stepper motors are well controllable (i.e., can be programmed to move a specific number of steps), which is exactly what the machine needs for controlling its movement.
Low Cost: Stepper motors are the least expensive compared to other types of motors, thus making them highly favoured for embroidery machines without any compromise in performance.

Accurate Speed: Sewing machines that come with servo motors can hold a fine line on the pressure of speed, making it extremely convenient to handle different types and thicknesses of fabrics out there.
Noiseless - Servo motors run quieter than clutch motor, helping keep your mind clear and focused on sewing.
Backstitch The servo motor affords easy and accurate control for the button reverse sewing action facilitates efficient backstitching and seam locking.
Needle Positioning: The needle positioning feature in servo motors leads to accurate placement of the needle which is very helpful for sewing complicated patterns or designs.
Longevity: Servo motors are designed for use in heavy-duty applications and provide years of reliable performance with little to no maintenance.