Sr.No.
Core type induction furnace.
Core less induction furnace.
1
Less leakage flux
More leakage flux
2
Power factor is good
Power factor is poor
3
Works at normal frequency
High frequency supply is required
4
Weight & size is more
As there is no magnetic core weight & size of
furnace reduces.
5
Design for high capacity
Design for low capacity
6
Crucible used is either Horizontal or
Vertical
Crucible of any shape is used
7
Initial cost is less
Initial cost is more as High frequency supply is
required
8
Used to melt only conducting metals
Both conducting and non-conducting charge can
be heated.
9
Time required for heating is more as
normal frequency is used.
Due to high frequency, high voltage supply, time
required for heating is less.