Automatic induction heating unit (fig. 2) is designed to heat round section blanks of  Ø90…150 mm in diameter and length of 140…335 mm  with output capacity 13…60 sec/pc. for further pressing at press-shop. The unit is mounted at Heavy Forging Plant (KZTSH, Zhodino, Belarus) by the experts of Beltechnologia & M. The induction heater is a four-row automatic heating line which operates without outside interference. Induction heater layout is in Fig. 3.

The unit is composed of the following main assembly units and mechanisms:

1. Induction heater box.
2. 3. Inductor ?1 and Inductor ?2 respectively.
4. Reciprocating hopper feeder.
5. Vibratory feeder.
6. Conveyor.
7. Inductor in-feed device.
8. Inductor out-feed device.
9. Reject chute.
10. Pyrometers.
11. Thyristor frequency converter  ?1 along with built-in heat exchanger.
12.  Thyristor frequency converter  ?2 along with built-in heat exchanger.
13. Electricity box.
14. Panel.
15. Hydraulic drive.
16. Pneumatic drive.

Fig. 2. Automatic induction heating line.

 Induction heater is equipped with:
- Software control system  based on OMRON processor
- Blank welding protection system
- Blank heating temperature control system
- Blank rejecting system
- Inductor coils overheat control
- Blank temperature automatic control system

 Fig. 3. IH-1600 induction heater layout.