For global transformer manufacturers, selecting a high-quality CRGO (Cold Rolled Grain Oriented) steel core is the most effective way to reduce no-load losses. Here are three critical factors to consider:
1. Grade and Magnetic Flux Density
High-permeability CRGO grades (like 23ZH090 or 27ZH100) allow for higher magnetic flux density. This results in a smaller core volume and reduced copper winding costs without sacrificing energy efficiency.
2. Precision Cutting and Burrs
Minimal burrs (typically <0.02mm) are essential. Precision longitudinal and transverse shearing ensures tight joints, which significantly lowers the noise level and excitation current of the transformer.
3. Step-Lap Stacking Technology
The Step-Lap longitudinal seam structure improves the magnetic flux distribution at the joints. Compared to traditional butt joints, Step-Lap cores can reduce no-load losses by 8% to 15%.
Why Choose Chenfan Electric?
As a specialized manufacturer, Chenfan Electric provides customized CRGO cores and silicon steel sheets tailored to international standards.
- Materials: Top-tier CRGO steel.
- Process: Advanced CNC shearing for ultra-low burrs.
- Service: Fast global shipping and technical support.
Contact Frank:
- WhatsApp: +8618617775005
- Email: frank@chenfanelectricpower.cn
- Web: chenfanelectric.com

