1K107 Nanocrystalline Transformer Core for Optimal Performance
Oct 27, 2025
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Nanocrystalline transformer cores achieve optimal performance due to their superior magnetic properties, including high magnetic permeability and low core losses, which lead to greater efficiency and smaller, lighter designs. They are ideal for high-frequency applications because of their excellent thermal stability and low eddy current formation. This results in a longer lifespan, higher reliability, and lower operating temperatures for the transformer.

Nanocrystalline transformer core Key advantages for optimal performance
Higher efficiency: Nanocrystalline materials have extremely low core losses, meaning less energy is wasted as heat, which is particularly beneficial in high-frequency and high-power applications.
Smaller and lighter transformers: High saturation flux density allows for the creation of smaller and lighter transformer designs with equivalent or better performance than traditional materials, saving space and cost.
Improved accuracy: High permeability increases the accuracy of current transformers, making them ideal for precise measurements.
Better thermal performance: These cores have excellent thermal stability, maintaining performance over a wide range of temperatures, and operate at lower temperatures, which extends the transformer's lifespan.
Reliability: Their enhanced magnetic properties and reduced stress lead to increased reliability and a longer operational life, even in demanding environments.
Nanocrystalline transformer core Application
- Switching power supply transformers
- Renewable energy systems and electric vehicles
- High-frequency transformers and inverters
- EMC filter chokes
- Current and voltage transformers (CT/VT)
- Control transformers
Nanocrystalline Core specification
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| CORE DIMENSION | |||
| OD(mm) | ID(mm) | L(mm) | H(mm) |
| 28 | 12 | 60 | 10 |
| 35 | 22 | 90 | 18 |
| 40 | 25 | 92 | 15 |
| 42 | 25 | 95 | 15 |
| 45 | 28 | 100 | 20 |
| 50 | 28 | 120 | 20 |
| 65 | 35 | 125 | 20 |
| 70 | 45 | 143 | 25 |
| 80 | 58 | 135 | 25 |
| 95 | 70 | 146 | 25 |
| 124 | 100 | 268 | 25 |
| 130 | 100 | 310 | 25 |
| 160 | 124 | 350 | 25 |
| 180 | 145 | 385 | 25 |
| 200 | 175 | 435 | 25 |
| 210 | 180 | 410 | 25 |
| 255 | 215 | 470 | 25 |
| Note: Additional sizes can be customized to meet specific customer requirements. | |||
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






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General Manager

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Sales Manager
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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











