Custom Wound Toroidal Core - High Permeability 1J85 Material from China Suppliers and Factory
Product Introduction
Wound iron core optimized for electromagnetic components.
Application Fields
Commonly used in small/medium transformers, mutual inductors, magnetic amplifiers, and leakage protectors.
Core Material
High permeability permalloy soft tape material (e.g., 1J85) offering excellent performance and low loss.
Product Advantages
High efficiency: no-load loss reduced by 7%-10%, and no-load current reduced by 50%-75% compared to stacked cores.
Exquisite Craftsmanship
Fully automatic winding, smooth and tight, near 100% material utilization, and 5-10 times higher efficiency.
Eco & Low Noise
Integrated structural design reduces operation noise by 5-10dB compared to traditional stacked iron cores.
High Customization
Tailored specifications and dimensions to satisfy diverse industrial requirements.
Process Features
High-temperature heat treatment guarantees stable performance. Transformer accuracy 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 1J85 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 are the primary applications of these wound iron cores?
Wound iron cores are commonly used in electromagnetic components such as small and medium-sized transformers, mutual inductors, magnetic amplifiers, and leakage protectors.
What materials are used to manufacture these cores?
They are manufactured using high-permeability permalloy soft tape materials, such as 1J85, which ensure high magnetic permeability and exceptionally low loss.
How do wound iron cores compare to stacked iron cores in terms of efficiency?
Compared to traditional stacked iron cores, the no-load loss of wound cores is reduced by 7%-10%, and the no-load current is significantly reduced by 50%-75%, making them highly efficient and energy-saving.
What is the noise level difference compared to stacked cores?
Thanks to their integrated structure, wound iron cores operate much quieter, reducing noise levels by 5-10dB compared to stacked iron cores.
What level of accuracy can transformers reach using these cores?
Due to stable performance after high-temperature heat treatment, the accuracy of transformers utilizing these cores can reach up to 0.1 level.











