What is the frequency of induction heating equipment? How to adjust the heating depth?

The power frequency of induction heating equipment has four levels:

1. Below 500Hz is called low frequency power supply

2. The range of 1-10KHZ is called intermediate frequency induction heating power supply, and the depth of intermediate frequency induction heating is 3-6mm

3. In the range of 15-50KHz, it is called super audio frequency induction heating power supply, and the depth of super audio frequency induction heating is 1.5-4mm

4. The range of 30-100KHz is called high-frequency induction heating power supply, and the depth of high-frequency induction heating is 0.2-2mm