Mid-Frequency DC Inverter Spot Welder
- Types
- Samples
- Specifications
- Features
- Details
Mid-frequency DC inverter spot welder converts three-phase AC power into DC power through rectification. The output of the MFDC inverter will be squares waves of electrical current at medium frequency of 1000HZ after controlled by the inverter circuit composed of IGBTs. Then it is transferred to primary transformer and the voltage is stepped down and rectified to provide a low-pulse DC current for welding the workpiece. The inverter adjusts the duty cycle of the IGBTs by feeding back the primary or secondary welding current, thereby achieving a constant current during the entire welding process.
Copper, aluminum, nickel, molybdenum, tungsten, manganese, gold, silver, and other non-ferrous metals
Low carbon steel plate welding, stainless steel plate welding, galvanized plate welding, aluminum plate welding, spot welding of wire, multiple spot projection welding, spot welding of high-strength steel in the automotive manufacturing industry, nut projection welding, as well as welding of copper wire, silver contact, and copper plate in the high and low voltage electrical industry.
- Standard MFDC inverter spot welder
For spot welding of metal sheets (copper, aluminum, stainless steel, galvanized steel)
- Kettle spout spot welding machine
For one-time spot welding of kettle spout
- Precision MFDC inverter spot welder
For precision welding of hardware parts, such as wires
- Band clamp spot welding machine
For welding of band clamp
- MFDC inverter table welder
For welding of small hardware
- Desktop MFDC inverter spot welder
For multi-spot automatic welding of small hardware
- Automotive nuts spot welder
For automatic moving welding of large nuts
- High power MFDC inverter spot welder for flexible copper connector
For welding of flexible copper connector
- Automatic spot welding machine for separator filter
For welding of separator filter
- Welding of nuts
- Welding of nuts
- Plate type welding
- Plate type welding
- Plate type welding
- Plate type welding
- Mesh type welding
- Mesh type welding
- Mesh type welding
- Copper series welding
| Model | Voltage (V) | Rated Capacity (kVA) | Max. Short Circuit Current (kA) | Duty Cycle (%) | Electrode Force (kg) | Electrode Stroke (mm) | Cooling Water (L/min) |
| | 380 3PH | 5 | 1.5 | 50 | 30 | 25 | 10 |
| | 380 3PH | 10 | 3 | 50 | 100 | 50 | 20 |
| | 380 3PH | 15 | 4.5 | 50 | 100 | 50 | 20 |
| | 380 3PH | 25 | 7.5 | 50 | 350 | 80 | 20 |
| | 380 3PH | 35 | 10 | 50 | 350 | 80 | 20 |
| | 380 3PH | 50 | 13 | 50 | 800 | 100 | 30 |
| | 380 3PH | 75 | 18 | 50 | 800 | 100 | 30 |
| | 380 3PH | 100 | 21 | 50 | 1000 | 100 | 30 |
| | 380 3PH | 120 | 23 | 50 | 1000 | 100 | 30 |
| | 380 3PH | 160 | 28 | 50 | 1000 | 100 | 30 |
| | 380 3PH | 200 | 32 | 50 | 1500 | 100 | 30 |
| | 380 3PH | 250 | 40 | 50 | 1500 | 100 | 50 |
| | 380 3PH | 300 | 48 | 50 | 2000 | 100 | 50 |
| | 380 3PH | 350 | 55 | 50 | 2000 | 100 | 60 |
| | 380 3PH | 400 | 62 | 50 | 2000 | 100 | 60 |
| | 380 3PH | 500 | 70 | 50 | 2000 | 100 | 60 |
- Reduced welding spatter: achieves stable and high-quality welding.
- Short power-on time, high thermal efficiency, and aesthetically pleasing and sturdy weld.
- High control precision: by ensuring that the charging voltage reaches the set value before initiating the discharge welding process, the welding energy fluctuation is minimized, guaranteeing a stable and precise welding quality.
- Energy-efficient, eco-friendly, and durable: The MFDC spot welder is characterized by high thermal efficiency, a compact welding transformer, and minimal iron loss, resulting in over 30% energy savings compared to AC spot welding machines and secondary rectifier spot welding machines.
- Three-phase power supply input with fault diagnosis and protection functions.
- Intelligent microcomputer controller
Touch screen allows for easy configuration and saving of welding parameters. The interface can be set to either Chinese or English, enabling precise adjustment of welding current parameters.
- Conductive copper tape
Thickened copper tape aims to enhance its conductivity.
- Customized electrodes
Customized electrodes (can be tailored to different materials and products)
- Customizable arm length
Arm length can be customized according to the product size.