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Electromagnetic Heating Machine for Hot Heading Process of Thick Iron Bars in China - Suppliers & Factory Solutions

This advanced electromagnetic heating machine is expertly crafted for the hot heading process of thick iron bars in foundry factories. As a leading product from prominent suppliers in China, it delivers rapid, uniform, and energy-efficient induction heating up to 1200°C. This ensures optimal plasticity for precision forging while minimizing oxidation loss. The compact system boasts automatic temperature control, making it ideal for processing bars with diameters of up to 80mm. Enhance your production capabilities with this reliable heating solution designed for factory efficiency

    Product Description

    Compared to traditional resistance furnaces, it offers significant energy-saving benefits, achieving up to 30%-50% reduction. The precise temperature control system (±10°C) effectively prevents oxidation and decarburization, enhances the density and grain refinement of forgings, and reduces mold thermal stress, extending the service life of molds by 40%.

    Additionally, the equipment features a PLC intelligent control system, with support for parameter memory, fault diagnosis, and industrial Internet of Things interfaces, fulfilling the automation requirements of modern forging production lines, and is particularly well-suited for the mass production of high-precision irregular parts.

    Application Scope

    Widely applied in the through-heating and temperature compensation of materials such as bar stock, round steel, square steel, and steel plates, as well as online heating and local heating. It plays a significant role in the online forging of metal materials (e.g., gears, semi-axle connecting rods, bearings, and other precision forging), extrusion, hot rolling, heating before shearing, heating for spraying, and hot assembly processes. Additionally, it is used in the heat treatment processes of metal materials, including overall tempering, annealing, and tempering.

    Configuration and Performance

    Power Supply & Coil Features a high-frequency inverter power supply (380V/50Hz, customizable for 440V/60Hz) and a water-cooled copper heating coil designed for iron bars with diameters of 20-80mm.
    Control & Cooling Integrates a PLC temperature control module, supported by a dual-channel closed-loop water-cooling system (3m³/h flow rate), ensuring stable operation with overload protection and emergency stop.
    Efficiency & Operation Heats Ø60mm iron bars to 1200°C within 90 seconds (uniformity within ±5°C). Achieves ≥85% electrothermal conversion efficiency with oxidation loss reduced to 0.3%. Supports 24/7 continuous operation.
    Output & Standards Delivers 120kW maximum power output and 1–20kHz frequency adjustment range. Measures 1200×800×1600mm. Complies with ISO 9001 standards and includes a 1-year warranty.
    Note: Performance parameters are based on standard operating tests. Users are advised to conduct process validation according to specific production requirements.

    Technical Specifications

    1. Power & Electrical

    Input Power High-frequency inverter (380V/50Hz standard; 440V/60Hz optional)
    Max Output 120 kW
    Frequency Range 1–20 kHz adjustable
    Electrothermal Efficiency ≥85%

    2. Thermal Performance

    Heating Speed 0→1200°C in ≤90 sec (for Ø60mm iron bar)
    Temp Uniformity ±5°C across workpiece
    Control Accuracy ±1% of setpoint
    Oxidation Loss ≤0.3% (vs. 1.2% for gas furnaces)

    3. Cooling System

    Type Dual-channel closed-loop water cooling
    Flow Rate 3 m³/h
    Duty Cycle 24/7 continuous operation (≤15min cooldown intervals)

    4. Mechanical, Safety & Warranty

    Heating Coil Water-cooled copper (for Ø20–80mm bars)
    Control System Touchscreen HMI + PLC-based PID regulation
    Dimensions Customized
    Protections Overheat/overcurrent/short circuit/phase failure + emergency stop
    Warranty 1 year

    Application Scenarios

    Frequently Asked Questions

    Q1: How much energy does this electromagnetic induction heating equipment save?
    A1: It offers significant energy-saving benefits compared to traditional resistance furnaces, achieving up to a 30%-50% reduction in energy consumption.
    Q2: What sizes and types of materials is the heating coil optimized for?
    A2: The water-cooled copper heating coil is specifically optimized for iron bars with diameters ranging from 20mm to 80mm.
    Q3: How fast does the system heat metal workpieces?
    A3: The equipment can heat a Ø60mm iron bar to 1200°C within 90 seconds while maintaining a temperature uniformity within ±5°C.
    Q4: What safety features are integrated into the control system?
    A4: The system includes comprehensive safety protections such as overheat, overcurrent, short circuit, and phase failure safeguards, alongside an emergency stop functionality.
    Q5: Can the equipment run continuously in a production line?
    A5: Yes, it supports 24/7 continuous operation, requiring only short cooling intervals of 15 minutes or less, backed by a dual-channel closed-loop water-cooling system.
    Q6: What is the warranty period for this heating system?
    A6: The electromagnetic induction heating equipment comes standard with a 1-year warranty.

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