Compact and lightweight
5.7-inch touch panel with Chinese and English display
IGBT inverter technology with high-speed microprocessor control
15-segment welding process curves with real-time curve tracking
High-efficiency soft-switching and water cooling — efficient, low-noise, reliable
Full protection: short circuit, overload, overheating, overvoltage, overcurrent
KULUN / DC Power Supply
DCM IGBT DC Welding Power Source (Water-cooled)
KULUN DCM: IGBT DC welding power source for low-voltage high-current electrofusion welding of PE pipes. DC 10-200 V / 150-3000 A.
Output Voltage RangeDC 10–200 V (custom)
Output Current RangeDC 150–3000 A (custom)
Features
Specifications
Input | Mains supply | Three-phase AC 380 V, 45–65 Hz |
Control supply | AC 85–265 V, 50/60 Hz | |
Output | Output voltage | DC 10–200 V, customized |
Output current | DC 150–3000 A, customized | |
Performance | Stability | Better than 0.2% |
Control accuracy | Better than 0.5% | |
Key features | Closed-loop mode | Constant current / constant voltage, switchable |
Duty | Continuous duty | |
Setpoint | Touch panel, DC 0/4–20 mA, DC 0–5 V/10 V, communication | |
Welding curves | 15 storable welding process curves, freely recalled | |
USB | USB data export | |
Communication | Modbus RTU | |
Data logging | History data and curve storage | |
Soft start / stop | 0–300 s | |
Protection | DC bus fault | Protection on DC bus undervoltage or overvoltage |
Output short circuit | Protection on output short-circuit fault | |
Overheating | Protection when device temperature > 85 °C | |
Overcurrent | Protection when output current reaches the set multiple | |
Load break | Protection when load current falls below the threshold setting |
Typical Applications
The DCM series DC welding power source uses high-frequency IGBT inversion with water cooling, up to 36 kW, mainly for electrofusion welding of polyethylene (PE) pipes. Typical applications are listed below.
Electrofusion welding of PE pressure pipes
For gas and water PE pressure pipelines. Output DC 10–200 V and DC 150–3000 A, customizable, with constant-current / constant-voltage switchover to hold the welding curve.
Non-pressure pipes and fitting prefabrication
For non-pressure pipework and fitting prefabrication. Continuous duty with water cooling suits long welding shifts.
Sites requiring weld data traceability
Stores 15 welding process curves with real-time curve tracking, and exports historical data and curves over USB for quality records.
FAQ
How to confirm output voltage and current range?
DC 10–200 V (custom); DC 150–3000 A (custom).
Which applications does it suit?
Electrofusion welding of PE pressure and non-pressure pipes, up to 36 kW.
What information is needed for selection?
Site voltage, current, load type, control mode, installation conditions and process requirements.
Selection Inquiry
Share your industry, load conditions, voltage, current, power range and site environment — our engineers will help you confirm the right configuration.
