Common frequency selection KHz

≥400

100-400

50-200

2.5-150

0.5-2.5

0.5-1

0.5-1

0.2-0.8

0.2-0.5

Common power selection KW

≤30

30-50

30-50

50-160

100-350

300-600

500-800

800-1200

≥1200

Hardening depth and frequency selection

Hardening depth requirement(mm)

≤1

1-3

1.5-3.5

2-4

2.5-5

3-8

5-10

≥10

Select the corresponding frequency(kHz)

≥400

30-200

8-100

4-50

2.5-8

1-4

0.5-2.5

≤1

Selection of quenching transformer

Rated power of equipment KW

50

100

160

250

350

500

750

Quenching transformer capacity KVA

250

500

800

1000

1500

2000

3000