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Electromagnetic Heating Machine for Hot Heading Thick Iron Bars - China Suppliers and Factory Solutions

This advanced electromagnetic heating machine, manufactured by leading China suppliers, is specifically engineered for the hot heading process of thick iron bars in foundry factories. It delivers fast, uniform, and energy-efficient induction heating, reaching temperatures up to 1200°C. This ensures optimal plasticity for precision forging while minimizing oxidation loss. The compact design of the system includes automatic temperature control and is capable of handling bars with a diameter of up to 80mm, making it an essential tool for modern manufacturing facilities. Enhance your production efficiency with this top-quality heating solution from a reliable factory in China

    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

    This electromagnetic induction heating equipment features a high-frequency inverter power supply (380V/50Hz, customizable for 440V/60Hz) and a water-cooled copper heating coil specifically designed for iron bars with diameters of 20-80mm. The control system integrates 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 functionality.

    The equipment heats Ø60mm iron bars to 1200°C within 90 seconds while maintaining temperature uniformity within ±5°C. With over 85% electrothermal conversion efficiency and oxidation loss reduced to 0.3% (compared to traditional gas furnaces), it significantly improves material utilization and supports 24/7 continuous operation, requiring only 15-minute cooling intervals.

    Key performance includes a 120kW maximum power output and 1–20kHz frequency adjustment range, achieving temperature control accuracy of ±1% of the setpoint. The compact unit measures 1200×800×1600mm, facilitating workshop integration. Actual performance may vary slightly based on material properties and environmental conditions.

    Ideal for precision hot-heading processes like automotive fasteners and aerospace forgings, the system optimizes metal plasticity through rapid, uniform heating. Its enclosed water-cooled design and automated temperature control significantly reduce energy consumption, complying with ISO 9001 standards, with a 1-year warranty included.

    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)
    • Temperature 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 & Control
    • Heating Coil: Water-cooled copper (optimized for Ø20–80mm bars)
    • Control System: Touchscreen HMI + PLC-based PID temperature regulation
    • Dimensions: Customized
    5. Safety & Compliance
    • Protections: Overheat/overcurrent/short circuit/ phase failure safeguards + emergency stop
    • Warranty: 1 year

    Application Scenarios

    Frequently Asked Questions

    What are the energy-saving benefits of this electromagnetic induction heating equipment?

    Compared to traditional resistance furnaces, this equipment offers significant energy-saving benefits, achieving up to a 30%-50% reduction in energy consumption.

    What materials and dimensions are compatible with this heating system?

    It is designed for the through-heating, local heating, and temperature compensation of materials like bar stock, round steel, square steel, and steel plates. The water-cooled copper heating coil is specifically optimized for iron bars with diameters ranging from 20mm to 80mm.

    How fast can the system heat a standard workpiece?

    The system is capable of heating a Ø60mm iron bar from 0°C to 1200°C in 90 seconds or less, maintaining a temperature uniformity of ±5°C across the workpiece.

    Does this equipment reduce material oxidation loss?

    Yes. Thanks to its rapid heating capability and precise temperature control, the oxidation loss is reduced to ≤0.3%, which is significantly lower than the 1.2% loss typically seen in traditional gas furnaces.

    What safety mechanisms are built into the system?

    The equipment features a comprehensive safeguard system including protection against overheating, overcurrent, short circuits, and phase failures, along with an easily accessible emergency stop button.

    Can the machine run continuously without overheating?

    Yes, it supports 24/7 continuous operation. It features a dual-channel closed-loop water cooling system (3 m³/h flow rate) and requires only short 15-minute cooldown intervals during prolonged operation.

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