Advanced Nanocrystalline Transformer Cores for Superior Inductor Performance
Oct 15, 2025
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Nanocrystalline Transformer Core
Nanocrystalline materials primarily consist of iron, chromium, copper, silicon, and boron. These specific alloy components are manufactured into an amorphous state using rapid quenching technology, followed by heat treatment to produce nanometer-sized crystalline grains.
Nanocrystalline cores exhibit excellent magnetic properties and temperature stability, particularly suitable for replacing ferrites in transformers below the 20kHz to 50kHz frequency range.
The resistivity of nanocrystalline materials is 90μΩ.cm (after heat treatment). Due to their nanostructure, they combine the advantages of silicon steel, permalloy, and ferrite.
Why Choose Our Nanocrystalline Magnetic Cores?
High Saturation Flux Density: Our cores offer exceptional magnetic properties, including a high saturation flux density which is essential for compact yet powerful transformers and inductors.
Low Core Losses: Reduce energy wastage with our nanocrystalline cores. Ideal for applications requiring high efficiency, our cores ensure minimal energy loss during operation.
Superior Temperature Stability: With excellent thermal properties, our cores perform reliably under varying environmental conditions, making them suitable for a wide range of industrial applications.
Customizable Solutions: We understand that every application is unique. That's why we offer customizable core shapes and sizes, tailored to meet your specific requirements.
Nanocrystalline Core Functions
- Current transformers
- Power transformers
- Pulse transformers
- Core balance transformers
- Hall Effect current sensors
- PLC (power line communication) coupler
- Specific Low loss and high flow density transformers
- Signals transformers
- Magnetic amplifiers
- Common mode chokes
- Storage chokes
- Smoothing chokes
Nanocrystalline e Core specification
| Dimension(mm) | |||||||||||
| A | ± | B | ± | C | ± | D | ± | E | ± | F | ± |
| 8.3 | 0.2 | 6.0 | 0.1 | 1.8 | 0.2 | 3.6 | 0.2 | 3.0 | 0.1 | 4.0 | 0.1 |
| 10.0 | 0.3 | 7.0 | 0.2 | 2.4 | 0.2 | 4.6 | 0.3 | 4.2 | 0.2 | 5.4 | 0.2 |
| 11.0 | 0.3 | 8.0 | 0.1 | 2.4 | 0.2 | 5.0 | 0.2 | 4.2 | 0.2 | 5.5 | 0.2 |
| 13.0 | 0.3 | 10.2 | 0.3 | 2.6 | 0.2 | 5.9 | 0.2 | 4.6 | 0.1 | 6.0 | 0.2 |
| 16.0 | 0.3 | 12.0 | 0.3 | 3.8 | 0.2 | 4.8 | 0.2 | 5.2 | 0.2 | 7.2 | 0.1 |
| 19.0 | 0.3 | 14.0 | 0.2 | 4.8 | 0.3 | 4.8 | 0.3 | 5.7 | 0.2 | 8.0 | 0.3 |
| 19.5 | 0.4 | 14.6 | 0.1 | 4.9 | 0.3 | 4.9 | 0.3 | 11.2 | 0.2 | 14.0 | 0.3 |
| 20.0 | 0.7 | 12.8 | 0.2 | 5.0 | 0.4 | 6.0 | 0.4 | 6.5 | 0.3 | 10.0 | 0.3 |
| 22.0 | 0.6 | 15.6 | 0.2 | 5.7 | 0.3 | 5.7 | 0.3 | 5.4 | 0.3 | 9.2 | 0.3 |
| 25.0 | 0.4 | 18.6 | 0.3 | 6.5 | 0.3 | 6.5 | 0.3 | 6.8 | 0.2 | 10.0 | 0.2 |
| 25.4 | 0.7 | 18.7 | 0.2 | 6.5 | 0.2 | 6.3 | 0.3 | 6.6 | 0.4 | 10.0 | 0.4 |
| 28.0 | 0.6 | 18.6 | 0.3 | 7.2 | 0.2 | 10.7 | 0.3 | 6.5 | 0.2 | 10.5 | 0.3 |
| 28.8 | 0.6 | 21.1 | 0.1 | 7.2 | 0.2 | 10.4 | 0.2 | 6.5 | 0.3 | 10.5 | 0.3 |
| 30.0 | 0.5 | 19.9 | 0.4 | 6.9 | 0.3 | 7.1 | 0.2 | 10.0 | 0.2 | 15.0 | 0.2 |
| 32.1 | 0.5 | 22.7 | 0.2 | 9.5 | 0.3 | 9.5 | 0.2 | 11.5 | 0.3 | 16.4 | 0.2 |
| 33.0 | 0.3 | 23.5 | 0.3 | 9.6 | 0.4 | 12.7 | 0.3 | 9.2 | 0.3 | 13.7 | 0.3 |
| 34.0 | 0.5 | 24.0 | 0.2 | 9.6 | 0.3 | 12.7 | 0.3 | 9.8 | 0.3 | 14.1 | 0.3 |
| 35.0 | 0.6 | 24.6 | 0.2 | 10.0 | 0.3 | 10.0 | 0.3 | 12.5 | 0.3 | 17.5 | 0.3 |
| 34.2 | 0.6 | 24.0 | 0.1 | 9.5 | 0.3 | 10.0 | 0.3 | 9.2 | 0.3 | 13.7 | 0.3 |
| 42.1 | 0.9 | 29.5 | 0.2 | 12.0 | 0.3 | 15.0 | 0.3 | 15.2 | 0.4 | 21.1 | 0.3 |
| The above dimensions are for reference. Additional dimensions can be customized to meet specific customer requirements. |
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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
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
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.
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
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.
Edison Zhang
CEO
Kelly Zhang
General Manager
Alex Cao
Sales Manager
Industries Served
Automobile Industry
New Energy
Transformer Applications
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