Q1: What wire diameters and coil sizes can your winding machines handle?
Our machines cover wire diameters from 0.05mm to 2.5mm, roughly in three ranges: 0.05–0.3mm ultra-fine wire for miniature voice coils, SMD inductors and sensor coils that demand extremely precise tension control; 0.3–1.2mm standard wire for small transformers, motor coils and wireless charging coils; and 1.2–2.5mm thick wire for high-power reactors, large transformers and new energy storage inductors. Coil sizes range from grain-of-rice micro inductors to large motor stators. Please provide your wire diameter, coil specifications and capacity targets — we will recommend the best-matching machine with a parameter comparison.
Q2: Needle winding or flyer winding — how should we choose?
The decision comes down to three factors. First, stator slot geometry: stators with narrow slots that require wire to be inserted into the slot (such as brushless motor stators) suit needle-type inner winding, while open-slot coils with clear bobbins suit flyer winding. Second, wire diameter and winding density: needle winding handles fine wire and dense multi-layer winding better, while flyer winding offers higher efficiency for conventional wire sizes. Third, production scale: flyer winding has cycle-time advantages for large-batch standard products, while needle winding offers more flexible changeover for multi-model, small-batch production. The most practical approach: send us your stator drawing, and we will provide a written recommendation based on slot type, wire diameter and capacity targets — sample winding verification is also available.
Q3: What positioning accuracy can your machines achieve?
It varies by model. The fully automatic needle-type inner winding machine achieves a positioning accuracy of 0.015mm, ensuring precise wire insertion into slots and uniform multi-layer stacking. Our optical module automatic coupling machine supports sub-micron active alignment to meet the mass-production accuracy requirements of 800G/1.6T optical modules. Precision winding machines are optimized for high winding consistency. Full specifications — including repeatability and winding speed for each model — are provided in the official datasheets; please contact us and we will send the relevant parameter sheets for your application.