800kw Solid State High Frequency Tube Welder for ERW Tube Mill Line

800kw 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: Composed of 100kW MOSFET bridges in parallel for high reliability and easy maintenance. Digital PLC Control System: Siemens S7-1200 PLC enables remote operation, data recording, and fault diagnosis. Optimized Welding Frequency: Frequency is 20-30% higher than original design, significantly improving welding efficiency. Closed Water Cooling System: Purified water circulation prevents scale and blockage, reducing operation faults. 3-D Electric Positioning Table: Full electric adjustment for front/back, left/right, and up/down directions. Stainless Steel Control Desk: Touch screen with protection cover and data recording function for easy cleaning. Compact and Integrated Structure: Integrated resonant inverter and tank circuit with sealed cabinet and air conditioning.