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Grain-oriented precision-cut coils
To be cut in accordance with the requirements of the clients
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Core Manufacturing Excellence – From Coil to Core
The process from grain‑oriented silicon steel coil to core involves:
1. Slitting – Precision width cutting with controlled burr height.
2. Punching / Cutting – Step‑lap, mitered, or straight cuts with minimal magnetic degradation.
3. Stacking – Automated or manual, ensuring uniform stacking factor .
4. Annealing (if required) – Stress‑relief annealing restores magnetic properties after cutting; coating must survive this process.
5. Assembly & Clamping – Uniform pressure prevents lamination vibration and maintains low core loss.
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Choosing the right core—and the right grain‑oriented silicon steel—based on transformer classification delivers:
· Energy savings – Correct grade and gauge minimize no‑load losses.
· Regulatory compliance – Meet efficiency standards.
· Operational reliability – Proper core design reduces hot spots, noise, and aging.
· Cost efficiency – Optimized material usage and yield lower total manufacturing cost.
