Transformer efficiency is dictated by the quality of its magnetic core. Factors like CRGO steel grade, lamination geometry, burr control, and insulation integrity directly influence core losses and system performance. For OEMs and transformer manufacturers seeking optimized core design, customized lamination services are not just a value-add they’re a necessity.
Sarjani Coretech offers complete CRGO lamination solutions tailored to electrical, dimensional, and thermal requirements. Here’s a breakdown of five reasons why industry leaders rely on Sarjani for high-performance, specification-driven transformer laminations.
1. Precision-Cut Laminations for Every Design
From mitred to rectangular laminations, our CNC-controlled Canwin machines deliver high repeatability and low deviation across batches. The result: minimal air gaps, uniform stacking, and reduced no-load loss.
2. CRGO Sourcing with Core Loss in Focus
We use laser-graded CRGO sheets from certified mills, selected based on guaranteed core loss values at specified flux densities. Lamination coatings are preserved during processing to ensure interlaminar insulation and minimize eddy current loss.
3. Flexible Volumes with Consistent Quality
Our modular slitting and punching infrastructure supports both low-volume pilot runs and high-volume production while ensuring stack uniformity, tight tolerances, and coating retention throughout.
4. Wooden Pallet Packaging & Safe Transport
To prevent deformation and corrosion, laminations are packed using treated wooden pallets and shrink-wrapped to avoid humidity exposure. We understand that even a 0.5 mm misalignment during transport can affect assembly precision.
5. Made-to-Spec. Delivered On Time.
Each lamination batch is matched to drawing-specific tolerances and verified for dimensional and angular accuracy. With structured scheduling and inventory buffers, we meet short lead times without compromising accuracy.
Conclusion
Electrical losses begin at the core and so should quality. Sarjani Coretech combines material integrity, process control, and logistics to deliver transformer laminations that meet the highest technical standards.
For OEMs who can’t afford errors at the core, Sarjani is the partner of choice.