The current frequencies commonly used in ឧបករណ៍ពន្លត់អគ្គីភ័យប្រេកង់ខ្ពស់ គឺ:

1. កំដៅប្រេកង់ខ្ពស់: 100～500KHZ ប្រើជាទូទៅ 200～300KHZ វាជាប្រភេទបំពង់អេឡិចត្រូនិចកំដៅប្រេកង់ខ្ពស់ ជម្រៅស្រទាប់រឹងគឺ 0.5～2.5mm សមរម្យសម្រាប់ផ្នែកតូច និងមធ្យម។

2. 2. Intermediate frequency heating: The current frequency is 500～10000HZ, usually 2500～8000HZ. The power supply equipment is a mechanical intermediate frequency heating device or a silicon controlled intermediate frequency generator. The depth of the hardened layer is 2-10 mm. Suitable for large diameter shafts, medium and large gears, etc. 3. Power frequency heating: The current frequency is 50HZ. Using mechanical power frequency heating power equipment, the depth of the hardened layer can reach 10-20mm, which is suitable for surface quenching of large-diameter workpieces.