Coil Forming Machine

The process begins with preparing raw materials such as copper conductors and insulation films. The wire is then wound into the desired coil shape, followed by insulation taping. After that, coils are hot-pressed to stabilize the shape and ensure structural integrity. Final steps include quality inspection and process adjustments tailored to specific performance or application requirements.

One widely used method is the multi-resin mica tape wrapping technique. It involves annealing the copper wire, applying turn insulation, and wrapping the main insulation using a half-lapped approach. After wrapping, coils are heat-cured at around 160°C for 4 hours. A corona-resistant layer is then applied to control partial discharge and enhance insulation performance in high-voltage environments.

The process includes two main stages:

• Component assembly: This includes installing the stator and rotor units.
• Final assembly and testing: Bearings are mounted, the air gap is calibrated, and a series of functional tests are conducted to verify alignment, insulation strength, and mechanical stability.