In its production programme FEMOD includes a wide assortment of inductors for all metallurgical applications.
They feature various windings for quenching, induction heating, high-frequency welding, melting, local preheating, thermal treatment, etc., with power ranging from several tens of watts up to over 2 MW, operating frequencies of 50 Hz up to 450 kHz, and all voltage levels used for this application. Most commonly used material for inductors is pure electrolytic copper. Cooling fluids for inductors are water or air.
According to operating frequencies, induction windings can be:
- LF - low frequency induction windings,
- MF - medium frequency induction windings and
- HF – high frequency induction windings.
Low frequency (LF) windings for steel melting induction furnaces
Model ................................................ IP 8t
Power ........................................ 1800 kVA
Voltage .......................................... 1500 A
Frequency ........................................ 50 Hz
Cast metal quantity ....................... 8000 kg
Cooling ............................................ water
Size .............................. Ø1320 x 1500 mm
Low frequency (LF) induction furnace windings for melting nodular cast metal
Model ........................................... ST 2000
Power .......................................... 600 kVA
Voltage ............................................ 575 V
Frequency ........................................ 50 Hz
Cast metal quantity ....................... 2000 kg
Cooling ............................................ water
Size .............................. Ø1000 x 1050 mm
Low frequency (LF) 3-phase induction furnace windings for heating copper and brass billets for extrusion
Power ........................................ 1100 kVA
Voltage ..................................... 170-420 V
Current .......................................... 3000 A
Frequency ........................................ 50 Hz
Cooling ............................................ water
Billet sizes ....................... Ø200 or 250 mm
Medium frequency (MF) crucible induction furnace windings
Model ................................. AJAX 1500/300
Power ........................................ 1500 kVA
Frequency ...................................... 500 Hz
Cast metal quantity ....................... 1500 kg
Cooling ... water with exit cooling installation made of chromium-steel
Size ................................ Ø840 x 1300 mm
Medium frequency (MF) induction furnace windings
Power ............................................ 30 kVA
Voltage ............................................ 250 V
Frequency ..................................... 4,0 kHz
Cast metal quantity ....................... 2000 kg
Cooling ............................................ water
Size .................................. Ø370 x 720 mm
Medium frequency (MF) induction windings
Rated power .......................... 15 - 250 kVA
Power supply ..................... 3 x 380 V; 50Hz
Frequency .................................... 2400 Hz
Maximum operational voltage ............. 800V
Cooling ............................................ water
Size ....................... Ø100 - 220 x 1400 mm
Different types of MF induction windings
Power ......................................... 2-10 kVA
Frequency .............................. 500-1000 Hz
Cooling ............................................ water
Windings of HF inductors for welding
Power ............................................. 5 kVA
Frequency ...................................... 10 kHz
Cooling ............................................ water
Size .................................. Ø 200 x 50 mm
Inductors for high frequency (HF) seam tube welding and quenching
Power ............................ 200 VA - 100 kVA
Frequency ............................ 100 - 440 kHz
Cooling ............................................ water
Inductors for high frequency (HF) surface quenching of motor crankshafts
Power ................................... 90 - 120 kVA
Operational voltage .................. 460 - 550 V
Frequency ................................... 8 - 9 kHz
Cooling ............................................ water
