IDW-1200T MFDC Resistance Welding Power Supply with URD-350 Transformer for Automotive & Heavy Metal Fabrication Industries
The IDW-1200T MFDC resistance welding controller combined with the URD-350 medium frequency transformer delivers a powerful welding solution for demanding industrial spot welding applications. Designed for automotive manufacturing, metal fabrication, steel structures and heavy-duty hardware production, this system combines high output current, precise welding control and efficient transformer technology to achieve stable welding performance and consistent joint quality.
The IDW-1200T MFDC resistance welding controller features a maximum output current of 1200A and a rated power of 250KVA. With selectable operating frequencies of 1kHz or 4kHz, the system supports constant peak current and constant conduction angle control modes. Advanced inverter technology provides fast response and accurate current regulation, helping reduce welding fluctuations and improve production consistency.
The controller supports three-stage welding processes, including preheating, main welding and tempering. Operators can independently configure welding steps, current reduction and recycling times to meet different material and workpiece requirements. Real-time secondary current measurement through a toroidal coil provides feedback for current adjustment, helping maintain stable welding conditions.
The URD-350 MFDC transformer is designed for high-power industrial resistance welding. With a rated power of 350KVA, 500V PWM supply voltage and maximum secondary current of 60,000A at 50% duty cycle, the transformer provides substantial welding capacity for thick metal components and demanding production applications. Its 1kHz operating frequency, 40:1 turns ratio and water-cooling structure support efficient heat dissipation and reliable operation under high-current conditions.
- 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 |
Compared with conventional AC welding systems, MFDC technology delivers direct current with concentrated welding heat. This helps improve energy utilization, reduce unnecessary heat generation and achieve more consistent weld quality. The low-voltage, high-current transformer design is particularly suitable for welding multilayer steel plates, thick metal sheets and large industrial components.
The IDW-1200T with URD-350 is suitable for automotive resistance spot welding, including chassis components, structural brackets, seat frames, body reinforcement parts and automotive hardware. Additional applications include steel furniture, supermarket shelving, wire mesh, metal cabinets, industrial enclosures, construction hardware and heavy metal fabrication.
For automated manufacturing, the controller provides three programmable I/O outputs, PLC and robot integration, RS-485 communication and optional RS-232 customization. It supports 32 standard welding specifications, expandable to 256 programs. Welding current, welding time, voltage and operation codes can be stored and exported through USB for quality inspection and production traceability.
Combining a 1200A MFDC controller with a 350KVA high-current transformer, the IDW-1200T welding system provides manufacturers with powerful output capacity, precise process control and flexible automation integration.
