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CRGO Core Laminations is a product used to manufacture transformer cores as a precision CRGO cut lamination. It is made from Cold-Rolled Grain-Oriented Electrical Steel (CRGO), a type of steel with high electrical resistivity and magnetic properties in the rolling direction. This material reduces core losses in transformers and increases corrosion resistance for a durable lamination core. The manufacturing process involves various stages. CRGO steel comes in multiple thicknesses, such as 0.20mm, 0.23mm, 0.27mm, and 0.30mm. Now, 0.18-thickness CRGO is available in the market for advanced laminated core applications. CRGO is available in Coil form, eye-to-sky position, or eye-to-wall position in width ranges of 900mm to 1260mm and weight ranges of 2MT to 10MT, supporting efficient laminated core transformer production. 

Key Attributes
Industry-specific Attributes
  • Material Cold-Rolled Grain-Oriented Electrical Steel (CRGO)
  • Available Thickness 0.18mm / 0.20mm / 0.23mm / 0.27mm / 0.30mm
  • Mother Coil Width Range 900mm to 1260mm
  • Coil Weight Range 2 MT to 10 MT
  • Coil Position Eye-to-Sky and Eye-to-Wall
Other Attributes
  • Slitting Process CNC Slitting Line for Precision Cut Lamination
  • Slit Width As per Customer Design Specification
  • Core Loss Property Low Core Loss in Rolling Direction
  • Electrical Resistivity High Electrical Resistivity for Reduced Eddy Current Losses
  • Surface Treatment Insulation Coating for Interlaminar Resistance
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The CRGO (Cold Rolled Grain Oriented) Core Assembly is an essential part of a transformer, crafted from high-grade CRGO magnetic silicon steel for a durable silicon steel transformer core. These cores are made up of thin CRGO sheets, also known as laminations, that are designed to optimize the flow of magnetic flux and minimize air gaps between the sheets in a high-performance CRGO core. We specialize in the precision assembly of core coils, ensuring optimal performance and reliability. Our expertise lies in crafting transformer components that form the backbone of electrical distribution systems worldwide using a robust silicon steel core.

Key Attributes
Industry-specific Attributes
  • Core Material Cold-Rolled Grain-Oriented Electrical Steel (CRGO)
  • Maximum Core Weight Up to 50 MT
  • CRGO Lamination Thickness 0.18mm / 0.20mm / 0.23mm / 0.27mm / 0.30mm
  • Joint Configuration Step-Lap or Butt-Lap (As per Design)
  • No Load Loss Testing Conducted and Verified Before Dispatch
Other Attributes
  • Core Readiness Ready for LV and HV Coil Insertion
  • Stacking Factor As per Design Specification and CRGO Grade
  • Packing Type Appropriately Packed for Safe Transit and Handling
  • Customization Core Weight, Window Dimensions, Limb Diameter, Yoke Cross-Section
  • Supply Scope Core Frame Parts and Complete Core Assembly
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The CRGO (Cold Rolled Grain Oriented) Core Assembly is an essential part of a transformer, crafted from high-grade CRGO magnetic silicon steel for a durable silicon steel transformer core. These cores are made up of thin CRGO sheets, also known as laminations, that are designed to optimize the flow of magnetic flux and minimize air gaps between the sheets in a high-performance CRGO core. We specialize in the precision assembly of core coils, ensuring optimal performance and reliability. Our expertise lies in crafting transformer components that form the backbone of electrical distribution systems worldwide using a robust silicon steel core.

Key Attributes
Industry-specific Attributes
  • Core Material Cold-Rolled Grain-Oriented Magnetic Silicon Steel (CRGO)
  • Lamination Form Precision Cut Thin CRGO Sheets
  • Available Lamination Thickness 0.18mm / 0.20mm / 0.23mm / 0.27mm / 0.30mm
  • Magnetic Flux Orientation Along Rolling Direction of CRGO Steel
  • Air Gap Minimization Optimized Lamination Stacking to Minimize Interlaminar Air Gaps
Other Attributes
  • Core Loss Property Low Hysteresis and Eddy Current Losses
  • Stacking Configuration Step-Lap or Butt-Lap Joint as per Design
  • Customization Core Dimensions, Window Geometry, Lamination Thickness, Stacking Configuration
  • Application Scope Power Transformers, Distribution Transformers, Specialty Transformers
  • Supply Form Assembled Core Ready for Coil Insertion
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The CRGO (Cold Rolled Grain Oriented) Core Assembly is an essential part of a transformer, crafted from high-grade CRGO magnetic silicon steel for a durable silicon steel transformer core. These cores are made up of thin CRGO sheets, also known as laminations, that are designed to optimize the flow of magnetic flux and minimize air gaps between the sheets in a high-performance CRGO core. We specialize in the precision assembly of core coils, ensuring optimal performance and reliability. Our expertise lies in crafting transformer components that form the backbone of electrical distribution systems worldwide using a robust silicon steel core.

Key Attributes
Industry-specific Attributes
  • Core Material Cold-Rolled Grain-Oriented Electrical Steel (CRGO)
  • Winding Conductor Material Copper or Aluminium from Reputed Mills
  • Maximum Burr on Slit Coil 10 Microns
  • Slitting Equipment CNC Slitting Line with Carbide Cutter
  • Number of Drying Furnaces 6 Furnaces for Moisture Elimination
Other Attributes
  • Testing Instrument Yokogawa Power Analyzer
  • Insulation Resistance Testing Conducted Before Tanking and After Tanking
  • Electrical Testing No Load Loss, Load Loss, and Full Electrical Tests Before and After Tanking
  • Insulation Quality Best Grade Insulation Material as per Design Specification
  • Supply Form Complete Core Coil Assembly Ready for Tanking
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Toroidal cores are a type of magnetic core that is shaped like a doughnut. They are made of a magnetic material, such as iron or ferrite, and are commonly used in electrical and electronic applications as a toroid core. We are highly experienced and skilled in producing and supplying a broad range of toroidal cores . Our professionals use the latest technology and premium magnetic core steel to create the core.The toroidal core improves in the reduction of high current and is used to control significant losses in electrical devices. It undergoes extensive testing for a variety of quality control factors before being made available in both specific and customized variants, depending on what our customers desire for toroidal cores.

Key Attributes
Industry-specific Attributes
  • Core Geometry Round and Rectangular Toroidal
  • Core Material Premium Magnetic Core Steel
  • Weight Range 10 Grams to 200 Kilograms
  • Annealing Atmosphere 100 Percent Nitrogen Atmosphere
  • Annealing Temperature 800 Degrees Celsius
Other Attributes
  • Annealing Duration 18 to 24 Hours
  • Furnace Control SCADA Controlled Furnace
  • Pre-Dispatch Testing 100 Percent Cores Tested at Low Induction Values
  • Air Gap Virtually Air Gap Free Magnetic Circuit
  • Applicable Standards Suitable for Low, Medium, and High Voltage CT, PT, and Transformer Applications
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Discover CRGO UniCore Wound Cores from verified suppliers, precision-manufactured for single-phase and three-phase transformer applications requiring compact construction, lower no-load losses, and faster assembly compared to conventional stacked core designs. UniCores are produced by continuously winding Cold-Rolled Grain-Oriented electrical steel strips into a closed toroidal or rectangular wound core geometry, ensuring that the magnetic flux path follows the grain orientation of the CRGO steel throughout the entire core circuit without interruption at lamination joints, resulting in significantly lower no-load losses, reduced magnetizing current, and quieter transformer operation compared to equivalent stacked core assemblies of the same capacity.  

Key Attributes
Industry-specific Attributes
  • Core Type Wound UniCore (Continuously Wound Closed Core)
  • Core Material Cold-Rolled Grain-Oriented Electrical Steel (CRGO)
  • Phase Configuration Single Phase and Three Phase
  • No Load Loss Performance Lower than Equivalent Stacked Core Design
  • Construction Type Compact Wound Construction
Other Attributes
  • Customization Core Cross-Section, Window Dimensions, Strip Width, CRGO Grade, Lamination Thickness
  • Assembly Characteristic Quick Assembly with Reduced Winding Time
  • Flux Path Continuous Along CRGO Grain Orientation Direction
  • Supply Form Ready to Wind Unicore as per Customer Design Specification
  • Applicable Transformer Types Single Phase and Three Phase Distribution, Isolation, and Specialty Transformers

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