At LaminaCore, we supply precision CRGO (Cold-Rolled Grain-Oriented) silicon steel cores for high-efficiency transformer and magnetic applications. We offer standard grades from M4 to MOH, as well as high-performance HiB grades with losses ranging from 0.95 W/kg to 0.60 W/kg in thicknesses as low as 0.23 mm to 0.20 mm. These materials are available either laser scribed for enhanced performance or etched to preserve superior magnetic properties after annealing. For high-frequency applications, we also supply ultra-thin GOSS (Grain Oriented Silicon Steel) in thicknesses of 0.10 mm and 0.05 mm, ideal for demanding compact magnetic designs.
What Are CRGO Silicon Steel Cores?
CRGO steel is specially processed to align its grain structure, significantly reducing core losses and improving magnetic efficiency. This makes it the industry standard for transformer and inductor cores where low hysteresis and high permeability are essential.
Grades and Thicknesses Available
We offer a wide selection of CRGO materials to meet the performance requirements of modern power systems:
Grades Supported:
M4, M3, MOH, M1H, and higher
Thickness Range: Standard 0.27 mm down to thin gauge 0.23 mm and 0.20 mm
HiB Grades:
0.95 W/kg down to 0.60 W/kg
Specialty Materials: GOSS in 0.10 mm and 0.05 mm for high-frequency use
Treatment Options: Laser scribed or etched to enhance and maintain magnetic performance post-annealing
CRGO Core Shapes and Cut Laminations We Supply
We offer a variety of core types and custom-cut laminations to serve different electrical and magnetic applications.
CRGO C-Core
Designed for transformers, inductors, and power modules, CRGO C-Cores provide high magnetic efficiency with low core loss. Available as split or bonded pairs, these cores offer excellent performance for compact and modular designs.
CRGO E-Core
CRGO Toroidal Core
CRGO toroidal cores offer excellent magnetic path continuity and minimal leakage flux. Supplied on request in collaboration with trusted partners, they are ideal for efficient, compact wound coil designs.
Bonded Block Core
Rigid and stable, bonded block cores are manufactured from stacked CRGO laminations. Ideal for heavy-duty magnetic assemblies requiring mechanical strength and dimensional consistency.
Custom Shapes & Cut Laminations
We supply custom-cut CRGO laminations tailored to your drawings. From specialized geometries to non-standard sizes, we support DXF, STEP, and PDF formats with cut lengths starting from 10 mm.
Standard Sizes and Custom Options
Whether you're ordering from stock or need a specialized solution, we offer full flexibility:
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UK-based company offering reliable technical communication and local accountability
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Direct collaboration with experienced engineers from project start to delivery
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Access to a wide range of materials and custom winding techniques
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Rapid prototyping and responsive iteration cycles
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ISO 9001-aligned processes and thorough quality control
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Proven track record supporting companies in medical, aerospace, defence, and industrial sectors
Standard Sizes and Custom Options
Whether you're ordering from stock or need a specialized solution, we offer full flexibility:
Applications of CRGO Cores
LaminaCore’s CRGO cores are trusted across energy, transportation, and industrial sectors:
01 – Power & Energy
Power Conversion & Distribution
Our transformer cores support efficient energy transfer in distribution grids, substations, and renewable energy systems—powering mission-critical electrical infrastructure with minimal losses.
03 – Renewable Energy
Solar, Wind & Hydro Applications
Ideal for solar inverters and wind turbine converters, our CRGO laminations support clean energy performance with high magnetic saturation and thermal stability.
05 – Industrial Automation
Motor Drives & Robotics
Designed for control systems, actuators, and compact drives, CRGO cores ensure magnetic efficiency in dynamic and space-limited installations.
02 – Transportation & EV
Charging & Conversion Systems
CRGO cores are used in EV chargers, DC/AC converters, and power inverters—providing low-loss, stable performance in electric mobility and rail infrastructure.
04 – Instrumentation & Sensing
Signal Integrity & Low-Noise Magnetic Shielding
For sensors and precision instruments, our cores deliver reliable voltage control and EMI suppression for stable operation in sensitive environments.
06 – Power Modules & Electronics
Inductive Power Conditioning
Used in power modules, filters, and compact converters, our cores optimize electromagnetic performance in modern electronics and smart grids.
Why
choose LaminaCore?
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UK-based supplier with quick lead times and direct support
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ISO-aligned quality processes and full traceability
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Flexibility for one-off, small batch, or full production orders
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Longstanding expertise in supplying magnetic core solutions
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Focused on precision, reliability, and performance
Performance Highlights
All of our supplied CRGO materials offer industry-leading magnetic properties:
LOW CORE LOSS
Down to 0.60 W/kg at 1.7 Tesla for HiB grades
HIGH MAGNETIC PERMEABILITY
Enables compact core design
LOW COERCIVITY
Reduces energy loss and improves transformer efficiency
DIMENSIONAL PRECISION
Ensures consistent stacking and minimal variation