Silicon Steel Transformer Core

Material: CRGO (0.20–0.35mm), CRNGO (0.30–0.50mm); high-purity silicon steel (3.0–6.5% silicon content); customizable for bulk orders
Dimensions: Length 40–350mm, Width 25–180mm, Height 8–100mm, Stacking Thickness 5–80mm (bulk customizable for industrial needs)
Performance: Working Frequency 50–60Hz (100–1200Hz custom); Magnetic Flux Density 1.2–1.8T; No-load Loss 0.3–3.5W/kg; Permeability 1500μ–18000μ; Exciting Current ≤4–≤30mA
Insulation & Temp: Insulation Class B (120℃), F (155℃), H (180℃); Operating Temperature -40–180℃; Insulation Resistance ≥100MΩ; Insulation Coating: Epoxy Resin/PVC (customizable)
Bulk Supply: 800–100,000pcs/month; ≥5 tons/order; Lead Time 7–25 days; Packaging: Moisture-proof, Shock-proof for sea/land transportation

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Silicon Steel Transformer Core Manufacturer for Bulk Supply

As a professional Silicon Steel Transformer Core manufacturer, we specialize in stable large-volume production for transformer factories, OEM brands, and power equipment distributors. Our factory-direct model ensures competitive pricing, consistent quality, and reliable delivery schedules for long-term cooperation.

With automated lamination stamping lines and precision stacking systems, we support continuous bulk orders while maintaining strict dimensional tolerances and magnetic performance standards. If you are sourcing a dependable Silicon Steel Transformer Core supplier, we provide both technical transparency and scalable capacity.

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High-Efficiency Silicon Steel Transformer Core with Low Core Loss

Our Silicon Steel Transformer Core is manufactured using premium CRGO silicon steel to ensure low iron loss, reduced eddy current loss, and stable magnetic flux density.

Key technical features include:

Lamination thickness: 0.23mm / 0.27mm / 0.30mm
Low core loss (W/kg values available upon request)
High magnetic permeability
Controlled hysteresis performance
Low noise and vibration operation

This low-loss silicon steel transformer core improves energy efficiency and reduces temperature rise, making it ideal for power transformers, distribution transformers, and industrial electrical equipment.

Magnetic & Physical Properties

Product Model / Grade	Nominal Thickness (mm)	Max Core Loss @ 1.5 T (W/kg)	Max Core Loss @ 1.7 T (W/kg)	Min Polarization @ 800 A/m (T)	Min Stacking Factor (%)	Density (g/cm³)	Silicon Content (%)
23CG110	0.23	0.73	1.10	1.78	94.5	7.65	3.0–3.5
23CG120	0.23	0.77	1.20	1.78	94.5	7.65	3.0–3.5
23CG127	0.23	0.80	1.27	1.75	94.5	7.65	3.0–3.5
27CG120	0.27	0.80	1.20	1.78	95.0	7.65	3.0–3.5
27CG130	0.27	0.85	1.30	1.78	95.0	7.65	3.0–3.5
27CG140	0.27	0.89	1.40	1.75	95.0	7.65	3.0–3.5
30CG130	0.30	0.85	1.30	1.78	95.5	7.65	3.0–3.5
30CG140	0.30	0.92	1.40	1.78	95.5	7.65	3.0–3.5
30CG150	0.30	0.97	1.50	1.75	95.5	7.65	3.0–3.5
35CG145	0.35	1.03	1.45	1.78	96.0	7.65	3.0–3.5
35CG155	0.35	1.07	1.55	1.78	96.0	7.65	3.0–3.5
35CG165	0.35	1.11	1.65	1.75	96.0	7.65	3.0–3.5

Advantages of Silicon Steel Core

Exceptional Energy Efficiency

With a core loss as low as 0.73 W/kg (at 1.5 T, 50 Hz for the high grades), no-load high efficiency transformer has efficiency of more than 99% at full load. This represents a huge saving of electric power of up to 30%, as compared to the normal non-oriented grain transformer, and ultimately, end users pay lesser electricity bills.

High Magnetic Permeability and Flux Density

Saturation flux density of 2.0 Telsa, can mean smaller volumes of core material at similar power ratings. It is possible for designers to build light, compact transformers without degrading performance.

Superior Thermal Stability

Can operate up to 120 degreesC without significant deterioration. Lower core losses also generate less heat, increasing insulation lifetime and reducing required cooling.

Reduced Noise and Vibration

Accurate grain orientation and tightly stacked lamination lengths minimize the core‘s magnetostriction (the physical expansion/contraction of the core under ac excitation). This leads to quieter operation which makes them ideal for urban substations, hospitals, and data centers.

Cost-Effective Scalability

Silicon steel (compared to amorphous cores 2–3x the price) has the highest performance-price ratio for medium and high-power applications (10 kVA to several MVA). It is available in large quantities and is easy to process.

Versatile Design Compatibility

EI, C-core, toroidal or step- lap varieties available. Our core is fully compatible with oil-immersed, dry-type, cast-resin transformers.

RELIABLE QUALITY | BETTER PRICE | FASTER DELIVERY

One-stop transformer core solutions for bulk procurement: quality you can trust, costs you can save, and delivery you can count on.

Full Product Range：Comprehensive selection of transformer cores to cover all your industrial and power application needs.

Custom Design Flexibility: Quickly adapt core dimensions, materials, and performance to your exact project specifications.

Cost-Effective Bulk Supply: Factory-direct pricing for large orders, delivering superior value without compromising on quality.

Guaranteed On-Time Delivery: Adequate production capacity and efficient logistics ensure your bulk orders arrive when you need them.

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Consult Our Experts for Transformer Core Details & Solutions

Custom Silicon Steel Transformer Core for OEM Projects

Every transformer design requires precise core dimensions. Our custom Silicon Steel Transformer Core solutions are tailored according to your drawings and performance requirements.

Customization options:

Adjustable stacking height
Flexible window size and cross-sectional area
Insulation coating customization
Annealing optimization for magnetic performance
Small-batch sample development before mass production

For manufacturers searching for an OEM Silicon Steel Transformer Core supplier, we provide engineering support to ensure seamless integration into your production line.

Why Choose Our Silicon Steel Transformer Core for Bulk Orders?

Ultra-Low Core Loss: As low as 0.8W/kg (50Hz), meeting IEC/IEEE standards for energy savings.
High-Grade Materials: Options include Grain-Oriented (GOES), Non-Grain-Oriented (NGOES), and High-Silicon Steel for diverse needs.
Bulk Discounts: Save up to 20% on orders over 10,000 units with flexible delivery terms (DDP/DDU).

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Certified Silicon Steel Transformer Cores for Global Markets

ISO 9001/14001 certified.
Regional compliance support (EU, China, U.S.).
Carbon footprint reports for sustainability goals.

Applications of Silicon Steel Transformer Core in Key Industries

Power Grid & Distribution:GOES cores for 500kV+ transformers, reducing transmission losses by 15%.
Renewable Energy:Amorphous alloy cores for solar inverters and wind turbines, boosting efficiency by 25%.
Electric Vehicles (EV):Thin-gauge cores (0.18mm) for EV chargers and onboard transformers, enabling compact designs.
Industrial Motors & Drives:NGOES cores for variable-speed drives, cutting heat generation by 20%.

Frequently Asked Questions

Transformer Core Application Cases

Silicon Steel Transformer Core

Silicon Steel Transformer Core Manufacturer for Bulk Supply

High-Efficiency Silicon Steel Transformer Core with Low Core Loss

Magnetic & Physical Properties

Advantages of Silicon Steel Core

RELIABLE QUALITY | BETTER PRICE | FASTER DELIVERY

Custom Silicon Steel Transformer Core for OEM Projects

Why Choose Our Silicon Steel Transformer Core for Bulk Orders?

Certified Silicon Steel Transformer Cores for Global Markets

Applications of Silicon Steel Transformer Core in Key Industries

Frequently Asked Questions

Transformer Core Application Cases

Bulk Delivery of 90-Ton Shell-Type Transformer Cores to a South Korean Client

Custom 40-Ton Rectangular Transformer Core for Mexico Completed

Delivery of 600-Piece CRGO Transformer Cores to a Vietnamese Client

Delivery of a 120-Ton Toroidal Transformer Core to a Client in the Philippines

Oil-immersed Transformer Core

Silicon Steel Transformer Core

Three-phase Transformer Core

C Transformer Core