For many years, Sunshine has specialized in high-speed motor core stamping dies for stator and rotor lamination production. The core die components are precision-machined from high-quality tungsten steel using coordinate grinding machines (accuracy up to 0.001 mm) and Seibu & Sodick WEDM (accuracy up to 0.002 mm), delivering exceptional dimensional accuracy and long die life for silicon steel lamination stamping.
After years of dedicated R&D, our engineering team has successfully developed stamping dies for the in-core adhesive bonding process, replacing traditional riveting. This innovation effectively reduces energy loss in high-end, high-efficiency motors — a breakthrough that marks a historic step forward in our motor lamination tooling technology. Trust Sunshine for precision motor core stamping dies that drive efficiency and quality in your motor manufacturing.
