1K107 Premium Magnetic Nanocrystalline C Cores for Efficiency
Oct 27, 2025
Leave a message
Nanocrystalline C cores are used in a variety of applications due to their superior magnetic properties, such as high efficiency and low losses. Common applications include high-frequency transformers, filters for solar power inverters, PFC (Power Factor Correction) chokes, and DC converters. They are particularly useful in systems requiring high performance, including electric vehicles, industrial power supplies, and electrostatic precipitators.

Nanocrystalline C core vs Silicon Steel C-Type Core
The core differences between the two lie in frequency adaptability and loss performance:
Frequency & Loss: Nanocrystalline C-type cores focus on medium-to-high frequency scenarios. Their iron loss at medium-to-high frequencies is much lower than that of silicon steel C-type cores, which can significantly reduce equipment temperature rise and lower heat dissipation costs. Silicon steel C-type cores are only suitable for power frequency scenarios; their loss increases sharply at medium-to-high frequencies, failing to meet high-efficiency requirements.
Magnetic Performance & Volume: Nanocrystalline C-type cores have higher initial magnetic permeability, resulting in better magnetic conductivity efficiency. They have a smaller volume at the same power, contributing to equipment miniaturization. Silicon steel C-type cores have higher saturation magnetic induction, enabling stronger load-carrying capacity in power frequency, high-power scenarios (such as traditional power distribution inductors).
Cost & Application: Silicon steel C-type cores are cheaper and suitable for power frequency equipment with low efficiency requirements. Nanocrystalline C-type cores are mostly used in medium-to-high frequency, high-efficiency equipment such as on-board inductors and industrial frequency converters.
Nanocrystalline C core vs Amorphous C-Type Core
Both belong to new soft magnetic materials, but nanocrystalline C-type cores have better performance:
Loss & Stability: Nanocrystalline C-type cores have lower high-frequency loss, with energy efficiency 15%-20% higher than that of amorphous C-type cores. They have a higher Curie temperature and a wider temperature tolerance range, with less magnetic performance attenuation after long-term use, ensuring stronger stability in scenarios with large temperature fluctuations (such as outdoor energy storage).
Cost & Scenarios: Amorphous C-type cores are slightly cheaper and suitable for ordinary medium-to-high frequency equipment with loose performance requirements (such as low-voltage inverters). Nanocrystalline C-type cores are adapted to scenarios with high requirements for efficiency and stability, such as medical equipment power supplies and high-precision sensors, where their performance advantages can offset the cost difference.
Nanocrystalline C core vs Ferrite C-Type Core
There are significant differences in frequency adaptation range and power-carrying capacity:
Frequency & Power: Nanocrystalline C-type cores are suitable for medium-to-high frequencies. They have high saturation magnetic induction, enabling them to carry greater power at the same volume, making them suitable for medium-to-high frequency, high-power equipment (such as energy storage PCS inductors). Ferrite C-type cores are more suitable for ultra-high frequency scenarios but have low saturation magnetic induction, only meeting low-power needs (such as RF filters).
Loss & Cost: Ferrite C-type cores have lower loss at ultra-high frequencies and are cheaper. In medium-to-high frequency scenarios, nanocrystalline C-type cores have more obvious loss advantages and are more suitable for high-power applications.
Nanocrystalline transformer core Key applications
High-frequency transformers: The high permeability of nanocrystalline material makes it ideal for high-frequency transformers used in industrial power supplies.
Solar and wind power inverters: These cores are used in the filters and transformers within solar and wind power converters to improve efficiency.
Electric vehicles: Nanocrystalline cores are applied in power supply and control systems for electric vehicles.
Industrial power supplies: They are used in applications like inverter welding machines, induction heating equipment, and AC/DC power supplies.
Filters: Nanocrystalline C cores are effective as both differential mode chokes and output filters.
DC converters: They are used in DC converters for systems such as electric locomotives and other power electronics.
Nanocrystalline C core specification
![]()
| Core Build | Window Width | Core Height | Core Width | Core Length | |||||
| a(mm) | ± | b(mm) | c(mm) | d(mm) | ± | e(mm) | ± | f(mm) | ± |
| 9 | 0.5 | 10 | 32.8 | 15 | 0.5 | 28 | 1 | 50.8 | 1.25 |
| 10 | 0.5 | 11 | 33 | 20 | 0.5 | 31 | 1 | 53 | 2 |
| 11 | 0.5 | 13 | 30 | 20 | 0.5 | 35 | 1 | 52 | 2 |
| 11 | 0.5 | 13 | 40 | 20 | 0.5 | 35 | 1 | 62 | 2 |
| 11 | 0.5 | 13 | 40 | 25 | 0.5 | 35 | 1 | 62 | 2 |
| 11 | 0.8 | 13 | 50 | 25 | 0.5 | 35 | 1 | 72 | 2 |
| 11 | 0.8 | 13 | 50 | 30 | 0.5 | 35 | 1 | 72 | 2 |
| 13 | 0.8 | 15 | 56 | 25 | 0.5 | 41 | 1 | 82 | 2 |
| 13 | 0.8 | 15 | 56 | 30 | 0.5 | 41 | 1 | 82 | 2 |
| 13 | 0.8 | 15 | 56 | 35 | 0.5 | 41 | 1 | 82 | 2 |
| 16 | 0.8 | 20 | 70 | 25 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 30 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 40 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 45 | 1 | 52 | 1 | 102 | 3 |
| 19 | 1 | 25 | 83 | 35 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 83 | 40 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 83 | 50 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 90 | 60 | 1 | 63 | 1 | 128 | 3 |
| 22 | 1 | 35 | 85 | 50 | 1 | 79 | 1 | 129 | 4 |
| 22 | 1 | 35 | 85 | 65 | 1 | 79 | 1 | 129 | 4 |
| 25 | 1 | 40 | 85 | 55 | 1 | 90 | 1 | 135 | 4 |
| 25 | 1 | 40 | 85 | 70 | 1 | 90 | 1 | 135 | 4 |
| 25 | 1 | 40 | 85 | 85 | 1.5 | 90 | 1 | 135 | 4 |
| 30 | 1 | 40 | 85 | 85 | 1.5 | 100 | 1 | 155 | 4 |
| 33 | 1 | 40 | 105 | 85 | 1.5 | 106 | 1 | 171 | 5 |
| 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






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











