T​OROIDAL CORES

What are toroidal cores?

We manufacture toroidal cores by winding grain-oriented silicon steel into a circular shape. These cores are specifically designed to meet various dimensional and material requirements.  

Production Scope:

-Outer Diameter (d1): 15 - 1000 mm
-Inner Diameter (d2): 10 - 950 mm
-Core Height (h): 5 - 100 mm

Moreover, we offer toroidal cores in various material grades. For instance, our cores come in different thicknesses and grades: 
-Thicknesses: 0.18, 0.23, 0.27, 0.30, and 0.35 mm
-Grades: Including M165-35S, M150-30S, M140-27S, and M110-27S
-HIB Grades: Available in 0.20, 0.23, 0.27, and 0.30 mm
-Examples: Such as M085-23P, M090-27P, M095-27P, M100-23P, M103-27P, M105-30P, and H111-30P
-High Frequency Material: For 400Hz - 20kHz in 0.10 mm thickness, labeled GT100
-Special Material: Designed for high-precision current and voltage transformers

USING OF TOROIDAL CORES

In addition, we use toroidal cores made from high-permeability materials for applications requiring high sensitivity to changes in magnetizing current and minimal signal distortion. For example, these cores are ideal for chokes with high inductance and for minimizing losses during magnetizing with alternating current. 
Furthermore, toroidal cores intended for high frequencies are suitable for magnetizing currents ranging from tens to hundreds of kHz. At these frequencies, the material's permeability is very low, leading to significant increases in losses. Thus, these cores are effective in antijamming chokes used in circuits with thyristors and triacs, as well as in high-frequency and switching power transformers or telecommunication transformers.