IDW-1000T MFDC Resistance Welding Power Supply with URD-240 Transformer for Automotive & Metal Fabrication Industries
The IDW-1000T MFDC resistance welding controller combined with the URD-240 medium frequency transformer provides a powerful and reliable solution for industrial resistance spot welding applications. Designed for demanding production environments, this integrated welding power system delivers precise current control, high output power, fast response and consistent welding quality. It is suitable for manufacturers requiring stable performance, high welding capacity and flexible production automation.

The IDW-1000T resistance welding controller features a maximum output current of 1000A and a rated power of 200KVA. Operating at selectable frequencies of 1kHz or 4kHz, the MFDC power supply supports two control modes: constant peak current and constant conduction angle. Advanced inverter technology enables precise welding parameter adjustment and stable power output, helping reduce current fluctuations and improve weld consistency.
The controller supports three-stage welding processes, including preheating, main welding and tempering. Operators can configure welding steps, current reduction and recycling times according to different materials and workpiece requirements. Real-time secondary current measurement through a toroidal coil provides feedback for current adjustment, helping maintain accurate welding conditions.
The URD-240 MFDC welding transformer is designed for high-current industrial spot welding. With 240KVA rated power, 500V PWM supply voltage and a maximum secondary current of 50,000A at 50% duty cycle, the transformer provides powerful welding output for demanding metal joining applications. Its 1kHz operating frequency, 44:1 turns ratio and water-cooling design ensure efficient heat dissipation and reliable operation under high-load welding conditions.
Unlike traditional AC resistance welding systems, MFDC technology provides direct current output with concentrated welding heat. This helps improve heat utilization, reduce unnecessary heat-affected areas and achieve more stable welding results, particularly when joining thick metal sheets and multilayer workpieces.
The IDW-1000T and URD-240 combination is suitable for a wide range of automotive resistance spot welding applications, including car body components, chassis brackets, seat frames, automotive hardware and structural metal parts. Other applications include steel furniture, supermarket shelving, wire mesh, metal cabinets, electrical enclosures, hardware components and industrial sheet metal fabrication.

- Equipped with remote programmer, It can realize external remote program settings.
- One working frequency (1KHz or 4KHz).
- Two control modes (constant peak current or constant conduction angle).
- 3 stages weldings: Preheating, weld, tempering. Regarding welding, you can set the stepping, reducing, and recycling times.
- Free program I/O outlets: Program 3 output, great connection with PLC, robots connection.
- Counting system: Welding qty, production qty, carton qty, electrode repairing qty are all covered. It improves the quality control of welding.
- Communication and BCD code control: It is ok to connect remote control, PLC etc. other remote digital control.
- Secondary toroidal coil displays real on time welding current which gives feedback to controller to adjust the accuracy of current.
- Easy Setting. It is ok to copy the same action data to be another line. It save time to set welding program.
- Limit control: 3 levels management.
- Data management: The current/ welding time/ voltage/ action code are stocked and USB copy to computer to study for quality checking and traceability.
- Alarm saving: The quality issue will be recorded to trace.
- Accuracy: 0.5%.

| Model | IDW-1000T |
| Output Voltage | 3*380V +/-10%, 50/60Hz( Option 220V/440V Available) |
| Rated Power | 200KVA |
| Maximum Output Current | 0-1000A/0-50KA |
| Inverter Frequency | 1KHZ or 4KHZ |
| Duty Cycle | 50% |
| Control Mode | constant peak current or constant conduction angle |
| Cooling Mode | Water Cooling |
| Communication Mode | RS-232/RS-485 |
| No-load Voltage | 9.8V |
| Valve Output | DC24V, ≤0.15A per channel |
| Solenoid Valve Output | 4 standard; 10 for gantry welders; up to 17 channels |
| Operating Temperature | -5℃ ~ +50℃ |
| Humidity | ≤80%, non-condensing |
| Heating Stage | 3 |
For automated manufacturing, the controller provides PLC and robot integration through programmable I/O outputs, RS-485 communication and optional RS-232. It supports 32 standard welding specifications, expandable to 256 programs. Welding current, time, voltage and operation codes can be stored and exported through USB for quality inspection and production traceability.
Combining a high-performance MFDC controller with a powerful water-cooled transformer, the IDW-1000T and URD-240 provide an advanced resistance welding solution for manufacturers seeking higher welding capacity, precise process control and dependable industrial production.