In transformer core manufacturing, the difference between a high-performing unit and a failing one often comes down to microns. Specifically, burr height. At Chenfan Power, we maintain a strict burr control standard of below 0.02mm.
The Impact of Burrs on Core Loss When burrs exceed 0.05mm, they pierce the insulation coating of the CRGO (Cold Rolled Grain Oriented) steel laminations. This creates short circuits between layers, leading to increased eddy current losses and localized overheating. For utilities and industrial users, this translates to wasted energy and a shorter transformer lifespan.
Our Manufacturing Standard We don’t just aim for precision; we guarantee it through:
- Precision Slitting: Our blades are maintained to ensure clean, sharp edges on every CRGO strip.
- Step-Lap Joint Technology: This reduces no-load loss and noise levels, optimizing the magnetic flux path.
- High Stacking Factor: By keeping burrs under 0.02mm, we consistently achieve a stacking factor above 96%, allowing for more active material in the same volume.
Beyond the Production Line Precision is fragile. This is why our packaging matches our engineering. Every core—whether a trial sample or a bulk order—is secured in reinforced plywood crates. If a core loses its precision during transit, it loses its value. We treat every shipment with the same rigor required by the world’s largest transformer manufacturers, ensuring that the 0.02mm precision we achieve in the factory is exactly what you receive at your site.