Outer-stator Winding Machine

Selection criteria

Number of spindles / flyers, wire-diameter range, indexing accuracy, tension control, automatic wire hooking and cutting.

Supply chain

Dongguan, Shenzhen and Foshan builders make outer-stator winders for cooling fans, appliance fans, drones and frameless torque motors, often as part of a complete stator line. Check indexing accuracy and how the start and finish wires are hooked to the terminals — trial-wind your own stator before buying.

Buyer FAQ

Why are outer-rotor stators wound with flyers?

Their teeth face outwards and the slots open to the outside, so a rotating flyer can lay wire directly around each tooth from outside while the stator indexes. It is faster than needle winding and allows multiple flyers working at once.

How many flyers or stations do I need?

Double-flyer machines winding two opposite teeth at once are the norm for fan and BLDC stators; 3- or 6-station machines raise output for high-volume fan motors. Match the station count to your takt time and the number of stator variants.

What causes most quality problems?

Wire crossing over into the air-gap envelope, enamel scraped at the tooth corners, and loose terminations on the hooks or pins. Use a go/no-go ring gauge on the coil envelope and a surge test on every stator.

Where it is used