
The Importance of Welding
Welding, as a crucial joining technology, plays an indispensable role in modern industry. It is widely applied in various fields such as construction, automotive manufacturing, aerospace, shipbuilding, and energy, providing essential guarantees for the strength, durability, and safety of structures. For instance, in the automotive industry, precise welding is essential for connecting car body panels, ensuring both safety and performance.
As a professional provider of welding process solutions, we are committed to offering customers efficient and reliable welding equipment and technology. Through continuous research and development as well as innovation, we have introduced an important innovative product — the energy-storage resistance welding controller.
Energy-storage Resistance Welding Controller
This advanced welding product combines inverter technology with energy storage mechanisms, enabling precise control of current and voltage, thereby achieving efficient energy utilization and stable output. It utilizes electronic boost and constant-current charging circuit technology to effectively store electrical energy in capacitors.
During welding, the stored energy is swiftly discharged onto the workpiece via a pressure mechanism, generating extremely high welding currents, ranging from tens of thousands to potentially hundreds of thousands of amperes, within a brief timeframe, thereby melting the metal at the contact point. Therefore, it’s especially suitable for projection welding processes, such as welding of nuts, bolts, tank ports, and other workpieces.
High Current Accuracy
Flexible Control
Reduced Welding Spatter
Energy Saving
Low Grid Demand
Balanced Grid Load
High Thermal Efficiency
Stable Current Output


Inverter-based Energy Storage Welding VS Traditional Energy Storage Welding

The Advantages of Sunke Inverter-based Energy Storage Welding
1 Energy Efficiency
2 Customizable Discharge Method
3 Consistent Welding Quality
4 Compact and Cost-Effective

The Pain Points of Traditional Energy Storage Welding
1 High Energy Consumption
2 Large Size
3 Fluctuations in Welding Quality
4 Uncontrolled Welding Time

Why Choose Us?
In our 40 years of development, we have never ceased to innovate. Our advanced energy storage welding technology efficiently connects vehicle fuel tank openings, the fuel tank itself, and other fuel system components. The resulting welds are smooth, uniform, and leak-free, ensuring the high quality and reliability of the products. This has enabled us to maintain close cooperation with top domestic and international automotive manufacturers.
We invite you to explore our cutting-edge electric resistance weld solutions, experiencing how they enhance your welding efficiency and elevate your product quality.