The DN(B) Series Stationary Mid-Frequency (MFDC) Spot Welding Machine operates on a 380V/50Hz three-phase AC power supply. At its core, the machine utilizes advanced Mid-Frequency Direct Current (MFDC) inverter technology. It converts standard line power into a stable and precise medium-frequency DC welding current through a three-phase rectifier and a high-performance inverter module. Integrated with a sophisticated feedback control system, it enables independent digital management and closed-loop control of welding heat, pre-press time, hold time, and off time, meeting exacting welding specifications with precision. This model is ideally suited for projection and spot welding applications that demand high consistency and superior quality in industries such as automotive manufacturing, home appliances, electronic instrumentation, and aerospace.

• Precise & Stable MFDC Welding:​ Utilizes advanced Medium Frequency Direct Current (MFDC) technology for exceptional weld quality, deep penetration, and minimal spatter, ensuring consistent and reliable results on a wide range of materials.

• High Efficiency & Energy Saving:​ Features a high-performance digital inverter that significantly reduces power consumption compared to traditional AC welders, delivering faster weld times and lower operating costs.

• Servo-Controlled Precision:​ Equipped with a servo-driven pressure system for highly accurate and repeatable electrode force application, critical for delicate or high-quality projection welding applications.

• Robust & Durable Construction:​ Built with a heavy-duty rigid frame and high-quality components to ensure stability, withstand rigorous industrial cycles, and guarantee long-term reliability in demanding environments.

• Intelligent Adaptive Control:​ Integrated with a user-friendly microcomputer controller that offers programmable welding parameters, real-time monitoring, and adaptive feedback for optimal weld quality and simplified operation.