1200kw Solid State High Frequency Tube Welder for ERW Tube Mill Line

1200kw Solid State High Frequency Tube Welder for ERW Tube Mill Line. High Efficiency PSM Technology: Ensures constant 450V DC voltage and optimal power factor for energy saving. Modular Inverter Design: 12 units of 100kW MOSFET inverters allow flexible power superposition. Advanced PLC Control: Siemens S7-1200 PLC enables logic control and Ethernet communication. Optimized Welding Frequency: Frequency is 20-30% higher than original designs for improved efficiency. Integrated Inverter Bridge: Reduces stray loss and significantly improves reliability and stability. Full Electric Positioning: 3-D table allows precise front/back, left/right, and up/down adjustments. Closed Water Cooling System: Purified water circulation prevents scale and blockage for low maintenance. Remote Monitoring Capability: Ethernet interface supports remote operation and data collection.