China Suppliers Factory Wound Toroidal Core Made of High Permeability 1J85 Material with Low Residual Magnetism
Product Introduction
Wound iron core designed for high performance and efficiency.
Application Fields
Commonly used in electromagnetic components such as small and medium-sized transformers, mutual inductors, magnetic amplifiers, and leakage protectors.
Core Material
High permeability permalloy soft tape material, such as 1J85, offering excellent performance, high magnetic permeability, and low loss.
Product Advantages
High efficiency and energy saving. Compared with stacked iron cores, the no-load loss of the wound core is reduced by 7%-10%, and the no-load current is reduced by 50%-75%.
Exquisite Craftsmanship
Fully automatic winding, smooth and tight, no shear waste. Material utilization rate is nearly 100%, and production efficiency is 5-10 times higher than stacked iron cores.
Low Noise & Eco-Friendly
The integrated structure reduces noise by 5-10dB compared with stacked iron cores, contributing to quieter operations.
High Customization
To meet the diverse needs of customers, various specifications can be customized.
Process Features
After high-temperature heat treatment, the performance is stable, and the accuracy of the transformer can reach 0.1 level.
In the world of electromagnetic components, wirewound toroidal cores are the epitome of efficiency and innovation. Made from high permeability IJ85 material, these cores are designed to meet the stringent requirements of modern electrical applications. The use of platinum alloy soft tape (e.g. 1J85) ensures that these cores exhibit excellent performance, characterized by high permeability and minimal residual magnetism. This makes them indispensable in the construction of small and medium-sized transformers, magnetic amplifiers and earth leakage protectors.
One of the outstanding features of wound toroid cores is their unparalleled efficiency and energy saving capabilities. Compared with traditional laminated cores, the no-load loss of wound toroidal cores is reduced by 7%-10%, which is impressive. In addition, the no-load current is significantly reduced by 50%-75%. Significant reductions in energy losses mean substantial cost savings and performance improvements, making wirewound toroid cores the first choice for a variety of electromagnetic applications.
In addition to the technical advantages, wirewound toroidal cores also contribute to quieter, greener operation. The integrated structure of these cores reduces noise levels by 5-10dB compared to stacked cores. The reduction in noise not only creates a more comfortable working environment but also meets ecological sustainability goals, making wirewound toroid cores a responsible choice for modern industry.
Specification
| Trademark | level | Strip thickness (mm) |
At 0.08 magnetic field permeability uo GS/Oe | Maximum magnetic permeability um Gs/Oe | Coercivity HC | Saturation magnetic hardness BS GS |
|---|---|---|---|---|---|---|
| no less than | no greater than | no less than | ||||
| 1J79B | YB/T5251-2013 | 0.05 | 20000 | 150000 | 0.03 | 7500 |
| 0.1 | 22000 | 200000 | 0.02 | |||
| 0.2 | 24000 | 220000 | 0.015 | |||
| 1J85B | YB/T5251-2013 | 0.05 | 45000 | 150000 | 0.02 | 6500 |
| 0.1 | 55000 | 180000 | 0.015 | |||
| 0.2 | 65000 | 220000 | 0.01 | |||
| 0.3 | 65000 | 250000 | 0.009 | |||
Note: The magnetic properties of YB/T5251-2013 in the above table are measured under DC state.
Frequently Asked Questions
What materials are used to manufacture the wound iron cores?
Our wound iron cores are manufactured using high permeability permalloy soft tape materials, such as 1J85 and 1J79B, which deliver excellent magnetic permeability and minimal loss.
What are the primary applications of wound toroidal cores?
They are widely applied in electromagnetic components, including small and medium-sized transformers, mutual inductors, magnetic amplifiers, and earth leakage protectors.
How do wound cores improve energy efficiency compared to stacked cores?
Compared to traditional stacked iron cores, the no-load loss of our wound core is reduced by 7% to 10%, and the no-load current is significantly decreased by 50% to 75%.
Do these cores offer noise reduction benefits?
Yes, the integrated structure of our wound toroidal cores reduces operating noise levels by 5 to 10 dB compared to stacked cores, ensuring quieter operation.
Can the specifications of the wound cores be customized?
Yes, we provide a high degree of customization. Various specifications and dimensions can be tailored to meet the specific requirements of our clients.
What process ensures the stability of these cores?
The cores undergo high-temperature heat treatment to stabilize performance, which allows the transformer accuracy to reach up to the 0.1 level.











