Hebei Yuantuo Electromechanical Equipment Manufacturing Co., Ltd. has developed and manufactured an Induction Billet Temperature Boosting Furnace based on the electromagnetic induction heating principle. The system is designed for steel billets and continuous casting billets (CCM billets), mainly used to boost and stabilize billet temperature before rolling, improving rolling consistency and reducing quality risks caused by temperature fluctuation.

1) Typical Process Parameters

• Heated material: Steel billet / continuous casting billet

• Steel grade: Carbon steel, alloy steel

• Billet size: 150 mm × 150 mm, billet length 3.0 m

• Temperature boosting: from 850°C to 1150°C (≈ +300°C)

• Electricity consumption: 40–110 kWh per ton (depending on billet surface inlet temperature and process conditions)

2) Process Flow (Automation Logic)

Manual loading to infeed conveyor → automatic billet accumulating with pinch-roll feeding mechanism → induction heating in furnace → infrared temperature measurement → manipulator clamps for fast discharge → discharge unit rotates 90° to align with the customer’s conveyor → PLC-controlled pushing to the customer’s conveying system.

This workflow supports stable and continuous billet handling while ensuring temperature uniformity prior to rolling.

3) System Configuration

The complete system typically includes:

1. Furnace frame (capacitor banks, water circuits, electrical circuits, pneumatic circuits)

2. Induction heating system

3. Billet storage platform + pinch-roll automatic feeding system

4. Pinch-roll fast discharge device

5. Infrared temperature measurement system

6. Transformer (optional, based on customer power conditions)

7. Filter capacitors (optional, based on site requirements)

8. PLC master control console

9. Cooling tower for the furnace system

10. Medium-frequency power supply controlling the induction heating furnace

11. Feeding system: independent motor + gearbox drive for each axis; multi-axis synchronized drive with one VFD control

12. Guiding system: 304 non-magnetic stainless steel guide rollers, with suitable axial flexibility to accommodate allowable billet bending

13. Closed-loop temperature control: Raytek IR pyrometer + Siemens S7 PLC adjusts power automatically according to billet inlet temperature and feeding speed to keep discharge temperature stable

14. Industrial PC (HMI/SCADA): real-time display of parameters, recipe memory, storage and printing, fault alarms, automatic power derating with temperature holding, etc.

4) Key Advantages for Rolling Lines

• Fast temperature boosting with precise control for rolling stability

• Closed-loop temperature control reduces human dependency and improves consistency

• Synchronized multi-axis conveying improves feeding reliability under heavy load

• 90° turning discharge matches downstream layout and simplifies docking with existing conveyors

• Custom-built design: the line can be engineered according to billet size, throughput, inlet temperature, plant layout, and power supply conditions

5) Customization Options

Yuantuo can tailor the system for:

• Different billet sizes and lengths

• Target temperature window and boosting ΔT

• Required throughput (t/h) and line speed

• Integration with existing rolling mill conveyors and automation signals

• Power supply conditions (voltage level, transformer capacity, cooling water conditions)