Forging Heating Furnace

Intermediate Frequency Forging Heating Furnace

Outstanding Features

• Wide Frequency Range: Covering 1KHZ-20KHZ, allowing selection of the appropriate frequency based on the diameter of the specific workpiece to be heated.
• Efficient Through-Heating: For bulk heating, the induction coil length ranges from 500mm to 1 meter, with multiple workpieces heated simultaneously, ensuring superior through-heating 效果.
• Stable Continuous Heating: Adopting a continuous heating mode, the load inside the induction coil remains balanced. This overcomes the significant fluctuation in actual heating power caused by the drastic load change when a single bar is heated from room temperature to 1100℃, ensuring the device’s actual power stays above 85% of the rated power throughout the continuous heating process—maximizing equipment utilization.
• High Efficiency for Non-Ferrous Metals: When heating non-ferrous metals such as copper and aluminum, by reasonably designing the induction coil and capacitors, the device’s actual power can also reach over 85% of the maximum power. For copper heating, the capacity reaches 3.5KG/KW·hour.
• Energy-Saving and Compact: Compared with thyristor intermediate frequency power supplies, it not only has a smaller volume and easier maintenance but also saves 15-20% energy.

Main Applications

The intermediate frequency forging heating furnace is used for continuous through-heating of regular round bars, square bars, or other shaped blanks made of steel (above Φ12), stainless steel, copper, aluminum, etc. It can be applied to both overall heating of workpieces and local heating (e.g., end heating, middle section heating).

Main Applications of Medium Frequency Forging Heating Furnace

The medium frequency forging heating furnace is specially designed for continuous through-heating of round bars, square billets, and other shaped blanks made from steel (≥Φ12mm), stainless steel, copper, aluminum, and other metals. It supports both overall heating and localized heating such as end heating, central section heating, etc.

Typical Applications Include

• Preheating for hot forging
• Bar end upsetting and forming
• Continuous heating of round and square bars
• Localized thermal shaping or extrusion

Key Features & Technical Highlights

1. Wide Frequency Range (1–20 kHz)
   Frequency can be selected based on the bar diameter and material to achieve the best penetration and heating uniformity.
2. Efficient Through-Heating Design
   The induction coil length ranges from 500 mm to 1 meter, allowing multiple bars to be heated at once, ensuring full and consistent temperature across the material.
3. Continuous and Stable Heating Power
   1. The continuous feeding structure keeps the inductive load stable, avoiding the sharp fluctuation in power demand during single bar heating (from room temp to 1100 °C).
   2. Throughout the entire process, the system can operate at 85%+ rated power, maximizing energy utilization.

4. Optimized for Non-Ferrous Metals
   With customized coil and capacitor designs, even for copper and aluminum, the actual power output can reach over 85% of rated capacity.

   1. Example: For copper heating, energy efficiency can reach 3.5 kg/kW·hour.

5. Energy-Saving vs Thyristor Systems
   Compared to traditional thyristor-based MF power supplies, our IGBT-based design:
   • Saves 15–20% energy
   • Takes up less space
   • Easier to maintain

The medium frequency forging furnace offers a high-efficiency solution for modern forging and forming processes, ensuring deep, uniform, and controlled heating.

Heating Efficiency Comparison (Based on Target Temperature)