Transformer Cores
The heart of every reliable transformer — precision-engineered for lowest losses and highest efficiency
Core Manufacturing Capabilities
High-permeability grain-oriented silicon steel · Precision cutting and stacking
Step-Laminated Cores
Multi-step lap joints, high-permeability GOES, reduced no-load losses and lower noise levels.
- Material: M3/M4 grade CRGO
- Thickness: 0.23mm / 0.27mm / 0.30mm
- Up to 35kV class
3D Wound Cores
Three-phase symmetrical magnetic circuit — 20% lower no-load loss, significantly quieter operation.
- No air gaps in magnetic circuit
- Lower magnetizing current
- Ideal for energy-efficient transformers
Amorphous Cores
Ultra-low no-load loss — 70% reduction compared to conventional silicon steel cores.
- Material: Metglas 2605SA1
- Best for renewable energy and rural electrification
- Green grid ready
Why Choose VOLTMORE Cores
Precision Manufacturing
Automated cutting lines with micron-level accuracy. Burr-free, consistent stacking factor.
Full Traceability
Each coil batch is tracked from material certificate to final core assembly.
OEM Core Supply
We supply cores to transformer manufacturers worldwide — ready for your assembly line.
Need Transformer Cores for Your Production?
Tell us your specifications — we deliver worldwide.
Contact Our Core Team →