What are the differences and distinctions between the internal and external winding machines of brus

The winding of brushless motor stators requires specialized automatic winding equipment. Depending on the shape of the stator and the direction of the slots, the winding methods also vary. The common types are internal winding machines and external winding machines. One type is for brushless stators with slots facing inward, and the other is for those with slots facing outward. So, what are the specific differences between the two? Let NOYU give you a brief introduction! I hope it can be helpful to everyone!
 

Brushless internal winding machine

Stator internal winding is a relatively common winding method. It can be used within a certain range of outer diameters and wire diameters. For small applications such as high-speed hair dryers, small water pumps, and the stators of electric toothbrushes, as well as large ones like industrial fans and servo motor stators, the needle winding method is mainly adopted. The wires can be wound from top to bottom or from bottom to top. It can be wound at high speed, multiple wires can be wound simultaneously, and precise wire arrangement is also possible. There are dual-station, four-station and six-station options available. It is equipped with precise servo motors and electric drive control systems, imported guide rails, lead screws, cylinders, etc. The frame is made of a combination of sheet metal, stainless steel and aluminum alloy, which is highly rigid. The whole machine operates stably and has good winding effect and quality.

Brushless external winding machine

External winding of the stator is also a relatively common winding method that is widely used. For small applications such as the stators of computer fans, model aircraft, and foam rollers, as well as larger ones like those of electric vehicles and agricultural drones, the flying fork winding method is mainly adopted. Through the interaction of the flying fork, die head, die house, guard plate, stator rod, etc., the wire is wound around the stator. It can be wound at high speed and multiple wires can be wound simultaneously. It can achieve precise wiring. There are single-station, double-station and four-station options available. It can be equipped with stepper or servo motors and drive control. The main unit is made of sheet metal and aluminum alloy, which is lightweight, compact and economical.
 

Whether it's a brushless internal winding or an external winding, when making a choice, one should keep their eyes wide open. Don't rush for high configurations, nor trust low-end products. Choosing the device that suits you is the best.