70KW Low-Frequency Dual-Station Induction Heater (1-20kHz)

The 70KW Low-Frequency Dual-Station Induction Heater by Across International is an industrial-grade system designed for a variety of metal heating applications. With a frequency range of 1 kHz to 20 kHz, this machine is particularly effective for processes that require deep heat penetration, such as full hardening, steel rod forging, tempering of pressing dies, pre-heating for welding, and melting metal batches over 4 lbs. It is versatile, supporting both ferrous and non-ferrous materials.

Key Features:

• Wide Frequency Range (1-20 kHz):
  The induction heater adjusts to the optimal resonant frequency for different materials and heating requirements, ensuring the most efficient and precise heating, regardless of workpiece size or material.

• 70KW Power Output:
  With a robust 70KW power output, this system can handle demanding industrial tasks that require substantial heating power. It is capable of continuous operation with a 100% duty cycle (24/7).

• Dual-Station Capability:
  This model allows for dual-station operation, meaning two workpieces can be heated simultaneously, improving productivity and efficiency in various applications.

• Air and Water Cooling Systems:
  The unit includes rear air cooling, while circulating water ensures optimal temperature regulation. The system requires water with a flow rate of at least 1.6 gallons (6 liters) per minute and a minimum water pressure of 29 PSI for proper operation.

• Safety Features:

  • Overvoltage Protection: The heater shuts down if the input voltage exceeds 245V, with an alarm and light indicator until the voltage normalizes.
  • Overheat Protection: The system will automatically stop if the IGBT heat sink temperature exceeds 55°C, preventing damage and ensuring safe operation.
  • Overcurrent/Malfunction Protection: The machine shuts down in cases of overheating, signal interference, short circuits, or other failures, with alarms to alert the user.
  • Low Water Pressure Protection: If water pressure drops below 29 PSI, the system will automatically shut down.

• High Precision Control:
  Digital output displays show real-time frequency and current readings, allowing precise adjustments for specific heating requirements. The system operates in both manual and automatic modes, providing flexible control options for different applications.

Specifications:

• Max. Input Current: 88 A (requires a minimum 110A 3-phase circuit breaker)

• Power Input: 460 VAC, 50/60Hz three-phase (380V available upon request)

• Output Frequency: 1-20 kHz

• Max. Oscillating/Power Input: 70KW

• Output Current: 20-130A

• Output Voltage: 70-550V

• Duty Cycle: 100% (24/7 continuous operation)

• Cooling: Rear air fan, requiring circulating water for temperature regulation

• Water Pressure: ≥ 0.2 Mpa (29 PSI); can use tap water and water pump (>1/4HP & >240 Gph)

• Water Flow: ≥ 1.6 gallons (6 liters) per minute

• Unit Dimensions and Weight:

  • Power Supply: 30 x 16 x 34 inches, 165 lbs
  • Transformer: Size and weight depend on the workpiece type and heating requirements

• Shipping Details:

  • Connection Cables: 7 feet

Applications:

• Metal Heating and Hardening: Ideal for processes such as metal hardening, forging, tempering, and pre-heating for welding.
• Metal Melting: Capable of melting metal batches over 4 lbs, including steel, brass, copper, gold, silver, and aluminum alloys.

Melting Capacities:

Conclusion:

The 70KW Low-Frequency Dual-Station Induction Heater is a powerful and versatile tool for industrial heating applications. Its dual-station functionality, high power output, and comprehensive safety features make it ideal for a range of tasks such as metal forging, hardening, and pre-heating for welding. The system is built for continuous operation and provides precise control to ensure optimal heating efficiency and safety.