Golden Eagle AC Contactors Enable Successful Launch of Shenzhen Enterprise CEO Wang’s New Project

AC contactors are commonly used for alternating current circuits, while DC contactors are designed for direct current applications. They can manually or automatically connect or disconnect the main circuit power frequently based on production requirements, primarily for controlling the start and stop of motors.

An AC contactor is an automatic controller that uses electromagnetic force to make or break a circuit. Its structure mainly consists of an electromagnetic system (iron core, coil) and contacts. When the switch is turned on and the coil is energized, the iron core generates electromagnetic attraction, pulling the moving iron core to engage. Simultaneously, the moving iron core drives three moving contacts to connect with three stationary contacts, allowing power to transfer from the input to the output end of the contactor.

Mr. Wang, an R&D engineer at a motor equipment factory, contacted us after learning about Golden Eagle online. He was recently working on a new project requiring an AC contactor coil for a ship motor. This particular coil had a unique tile-shaped design with highly precise curvature requirements, as it needed to fit perfectly with the iron core during assembly within strict dimensional constraints. Mr. Wang had already sampled over ten manufacturers without success. As a last attempt, he sent us detailed drawings. Upon receiving the documents, we immediately convened a meeting with our engineers. Fortunately, Manager Wen, who had joined us just a month earlier, had experience with a similar product and proposed a solution on the spot. The coil shaping equipment and fixtures were designed the same day, and samples were shipped to Mr. Wang within a week.

To our delight, Mr. Wang confirmed that our samples met all requirements with excellent consistency and accurate dimensions. He promptly placed a trial order for 3,000 units.

Why Golden Eagle’s AC Contactor Coils Earn Customer Recognition?

1. All coils are wound using fully automatic Japanese Nittoku winding machines with a repeat accuracy of 0.001mm — a precision unmatched by many competitors.

2. Capable of producing wires with diameters as fine as 0.012mm — a unique capability in China.

3. Lean production and single-piece flow manufacturing enable immediate detection of quality anomalies.

4. Raw materials are sourced from industry-leading suppliers such as Elektrisola, Japan Daido, and Sumitomo.

5. 100% of raw materials and finished products undergo life and reliability testing.

6. Golden Eagle boasts a highly experienced R&D team ready to solve various special coil challenges.