Basic Structure of DR-20000J Capacitor Energy Storage Spot Welding Machine

Components:
Frame, Pressurizing Mechanism, Water Cooling System, Welding Circuit, Capacitor Power Supply, Control System, Body, Welding Cylinder, Electrodes, Cooling Circuit, Monitoring Device, and Safety Mechanism.

1. Frame:
   • C-frame structure, high-quality steel, and section steel.
   • Precision machining and heat treatment for rigidity and accuracy.
2. Pressurizing Mechanism:
   • Vertical pressure type with self-lubricating bearings for better performance.
   • Minimizes electrode impact, preventing damage and wear.
3. Pneumatic System:
   • Includes Japanese “SMC” solenoid valves, Taiwanese air processors, and oil-free cylinders.
   • Gas storage tank stabilizes pressure.
4. Discharge Transformer & Welding Circuit:
   • Uses Wugang silicon steel sheets, and precision copper casting.
   • Soft copper tape and electrodes in series.
5. Main Control System:
   • Mitsubishi PLC and HMI.
   • Manual, automatic, and charging modes.
   • Adjustable parameters via touch screen (voltage, pressure time).
6. Welding Controller:
   • Fast charging/discharging via microprocessor.
   • Compatible with old and new capacitors, it extends capacitor life.
   • Protection modes for fault prevention.
   • Automatic adjustment for capacitor voltage and leakage current.
   • Fault detection for overcharge, discharge, and capacitor errors.
   • Stores up to 5 welding specs, count 9999 welds, real-time voltage detection (error ≤ 1%).