CRGO Optimized Transformer Core Using Split Cut Soft Magnetic Silicon Steel Laminations

Sep 29, 2025

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Cold Rolled Grain Oriented Silicon Steel transformer core Product Description


 

CRGO Optimized Transformer Core Using Split Cut Soft Magnetic Silicon Steel Laminations

Cold Rolled Grain Oriented Silicon Steel (CRGO) transformer cores are made by stacking CRGO electrical steel sheets, and their performance directly determines the energy efficiency, loss, noise, and reliability of the transformer.

 

CRGO transformer core Performance Advantages

Compared with cores made of ordinary electrical steel (such as non-oriented silicon steel), CRGO transformer cores have significant advantages:

 

  • Energy Efficiency: Core loss accounts for 60% to 80% of the total transformer loss. CRGO cores can reduce the no-load loss of distribution transformers by 40% to 60%, meeting the IE3/IE4 high-efficiency standards.

 

  • Low Noise: Magnetostriction (tiny deformation when the core is magnetized) is the main source of transformer noise. The consistent grain orientation of CRGO steel sheets can reduce the unevenness of magnetostriction, lowering operating noise by 3 to 5 dB.

 

  • High Reliability: Low loss means less heat generation in the core and lower hot spot temperature, extending the service life of insulation materials (the service life of transformers has an exponential relationship with hot spot temperature - for every 10°C decrease in temperature, the service life doubles).

 

  • Compact Design: High magnetic induction allows for a reduced core cross-sectional area, shrinking the transformer volume by 15% to 25%, thus saving installation space and material costs.
 

Silicon Steel transformer core Application

· UPS and SMPS Power Factor Correction Chokes

· UPS Harmonic Filter Inductors

· High-Power Outdoor Industrial Ballasts

· Welding Power Supplies

· High-Speed Rail Power Systems

· Choke coil for DC/DC converter

· Normal mode choke coil

· Choke coil for adapter and battery charger

· PFC choke cil

 

Silicon Steel transformer core specifications

Uasage

Transformer Instrument

Phase

Single

Material

CRGO grain oriented electrical steel

Thickness

0.23~0.35

Max Core Loss 1.7T/50HZ

110

Place of Origin

Henan China

Frequency

400HZ

Delivety Time

Within 20 days

Surface Treatment

Coated

 

 

GNEE Featured Products

Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~

Manufacturing Process

 

Raw Material Sourcing

1. Raw Material Sourcing

Slitting

2. Slitting

Punching

3. Punching

Laminating

4. Laminating

Core Forming

5. Core Forming

testing

6. testing

GNEE EC

Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.

GNEE EC

30+

Types of Products

18k+

Happy Clients

 

 

 

Why Choose GNEE EC?

 

GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.

 

18+

Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;

 
 

200+

Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;

 
 

35+

Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;

 
 

1,000+

Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;

 

Gnee Iron Core Factory Overview

Gnee Iron Core Factory
Gnee Iron Core Factory
Gnee Iron Core Factory
Gnee Iron Core Factory
Gnee Iron Core Factory
Gnee Iron Core Factory

Meet Our Sales Manager

 

"The Core of the Iron Core, the Power of Leadership" - See Our Great Decision-Makers Deeply Engaged in the Magnetic Materials Industry.

CEO

Edison Zhang

CEO

General Manager

Kelly Zhang

General Manager

Sales Manager

Alex Cao

Sales Manager

 

 

Industries Served

 
Automobile Industry

Automobile Industry

New Energy

New Energy

Motor Applications
Motor Applications
Transformer Applications

Transformer Applications

modular-1

Our Mission

Strive To Create world-class Iron core brand

With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets

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