What’s the differences for IGBT and SCR type heating furnace ?

Author : Hongteng Time: 2021-11-12

Some customers had confused about which furnace is better? Actually, we choose which furnace depending on the production capacity and material we use. Here we analyze the condition:

1, Frequency: IGBT belongs to the high-frequency power component and its working frequency is more suitable for > 8KHz; SCR belongs to the medium frequency power component and its working frequency is more suitable for < 5KHz;

2, Material size: IGBT is suitable for material dia <50mm; small piece material has better effect. SCR furnace is suitable for bigger size material.

3, Woking condition: IGBT furnaces better build an independent working room, because IGBT furnace working required stable temperature and clean environment.

(1) Rolling mill machine working environment have many pollutions, if working a long time together, may cause problems for IGBT furnace.

(2) IGBT is better for material appearance processing, not good at equipping rolling mill lines.

SCR heating furnace is widely used in rolling mill production line, have a good effect and higher working efficiency.

4, Furnace voltage: IGBT furnace Max voltage can reach 2600V, the higher voltage needs bigger inductance-capacitance. that’s means the furnace body needs to be longer, have more coils, keep the voltage stable and uniform. SCR heating furnace voltage only 750-900V, inductance-capacitance required only 30% of the IGBT furnace, that’s why SCR furnace body length is shorter.

So considering the above information, we can choose the right machine for us.

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