Soft Magnetic Material Iron Toroidal Transformer Ring Type Amorphous Alloy Core

Oct 14, 2025

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Ring Type Amorphous Alloy Core

The toroidal amorphous alloy core is manufactured through specialized metallurgical processes, utilizing ultra-rapid cooling technology to form amorphous-structured ribbons that are precisely wound into a closed-loop magnetic circuit configuration. This unique structural design delivers outstanding performance in high-frequency power electronics applications, particularly suitable for scenarios demanding high efficiency and low loss.

Amorphous Alloy Ring Core Feature

Exceptional Electromagnetic Properties: The core exhibits superior soft magnetic characteristics, featuring extremely high initial permeability and remarkably low coercivity. These properties enable the core to maintain minimal hysteresis loss even at high frequencies, significantly improving energy conversion efficiency.

Outstanding Temperature Stability: Within a broad temperature range, the toroidal amorphous alloy core demonstrates minimal parameter variations, allowing reliable performance in various challenging operating environments.

Ultra-Thin Material Structure: The specially processed amorphous ribbons are approximately one-third the diameter of a human hair in thickness. This microstructure effectively suppresses eddy current effects, substantially reducing high-frequency losses.

Excellent High-Frequency Response: The distinctive non-crystalline atomic arrangement enables the core to maintain superior magnetic performance at high frequencies, perfectly meeting the evolving demands of modern power electronics toward higher frequencies.

Amorphous toroidal Core Application

These cores are widely used in:

High-frequency switching power supply systems
New energy power generation equipment
Electric vehicle drive systems
Smart grid devices
Industrial automation control systems

Manufacturing Features

The production process incorporates multiple precision procedures, including molten alloy ultra-rapid solidification, optimized heat treatment, and precision winding techniques, ensuring consistent and reliable product performance.

Amorphous Ring Core specification

Soft Magnetic Material Iron Toroidal Transformer Ring Type Amorphous Alloy Core

Magnetic core size(mm)			Protective box size(mm)			Effective cross-sectional area Ae(mm2)	Magnetic path length Ie(mm)	Maximum DC overcurrent class (A)
id	od	ht	ID	OD	HT	Effective cross-sectional area Ae(mm2)	Magnetic path length Ie(mm)	Maximum DC overcurrent class (A)
14	19	6.5	12	22	8	11.86	51.81	20
14	20	10	12	22.3	11.4	29.68	52.29	40
16	21	10	15	24	12.3	24.85	57.41	60
16	23	8	15	24	9.7	20.44	61.23	60
16	23	10	15	24	12.3	34.62	59.92	60
17	22	10	15.3	24.4	12.3	24.86	60.59	60
17	21	8	15.3	24	9.7	25.56	60.67	60
17	23	8	15.3	24.4	9.7	26.89	61.34	60
18	23	10	16.4	24.4	12.3	29.78	60.38	70
18	24	9	16.4	25	11.2	34.78	60.89	70
18	25	10	16.4	25.9	12.3	37.97	64.56	70
19	24	9	17.3	25	11.2	40.39	65.32	80
19	25	10	17.3	26	12.3	39.42	62.31	80
19	26	10	17.3	27.3	12.3	48.32	69.56	80
20	25	10	18.5	26.3	12.3	39.29	70.32	90
20	28	10	18.5	29	12.3	45.76	73.88	90
20	32	10	18.5	32.3	12.3	58.91	78.75	90
21	29	10	18.2	31.3	12.3	39.65	77.19	100
21	26	8	18.3	27.4	9.7	46.54	78.32	100
21	28	10	18.3	30	12.3	50.39	77.45	100
22	28	10	20.5	30	12.3	49.32	79.89	120
22	32	10	20.5	33.4	12.3	43.58	73.43	120
23	32	10	21.3	33.4	12.3	44.56	74.56	120

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.

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

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

Motor Applications

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

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