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DTB-80 DTB-160 DTB-240 DTB-280 DTB-340 DTB-450
Customizable according to requirements
High Power ▪ Intermediate Frequency ▪ DC output current
Energy saving, power saving, high efficiency, low operating cost, and high welding quality.
Product overview: The medium frequency inverter DC spot welding machine converts the power frequency (50Hz) AC to the medium frequency (1000Hz) DC output. The time resolution is higher than that of the power frequency, the control accuracy is also improved, and the output current is not affected by the change of the secondary output circuit. It has high thermal efficiency, large output power rate and better welding quality. Compared with the traditional power frequency welding machine, inverter medium frequency DC welding will be efficient and energy-saving. It is a technological revolution breakthrough in the field of resistance welding.
Welding material: Aluminum, copper, galvanized sheet, carbon steel, nikel, tungsten and other metal materials.
Welding material thickness for standard machine: ≤ 6.0+6.0mm
Process recommendation: Spot welding
Application industry: Widely used in welding of metal products in automobile and auto parts manufacturing, new energy power battery, photoelectric communication, Electric light, compressor, hardware, furniture, kitchenware and other industries
| parameter | DTB-280 | DTB-340 | DTB-450 |
| Rated capacity | 280KVA | 340KVA | 450KVA |
| Input power | 3 φ 380V | 3 φ 380V | 3 φ 380V |
| short-circuit current | 65KA | 80KA | 100KA |
| Load duration | 20% | 20% | 20% |
| control mode | Primary / secondary constant current | Primary / secondary constant current | Primary / secondary constant current |
| Inverter frequency | 1000HZ | 1000HZ | 1000HZ |
| Arm extension size | 500 × 350mm | 500 × 350mm | 500 × 350mm |
| press | 12000N | 12000N | 12000N |
| Electrode stroke | 100mm | 100mm | 100mm |
| Cooling water flow | 14L/min | 16L/min | 20L/min |
| Welding capacity /Al. plate | 3.5+3.5mm | 4.0+4.0mm | 5.0+5.0mm |
| Welding capacity / carbon steel | 4.5+4.5mm | 5.0+5.0mm | 6.0+6.0mm |
| Electrode arm size | φ 74x195mm | φ 74x195mm | φ 74x195mm |
| Electrode holder size | φ 31.6 × 250mm | φ 31.6 × 250mm | φ 31.6 × 250mm |
| Electrode head size | φ 20x60mm | φ 20x60mm | φ 20x60mm |
| weight | 820kg | 900kg | 980kg |
| Overall dimension | 1205*870*2140mm | 1205*870*2140mm | 1205*870*2140mm |
1. Energy Saving: Compare with using low frequency, it can help to reduce the consumption of electric energy. The transformer of the same weight could output more energy. It can also be conveniently used with the large automatic welding clamp.
2. In a semi-automatic machine, one medium frequency transformer can replace many low frequency transformers which can help to reduce the parallel connection in secondary circuit.
3. Improve the power factor, reduce the production cost.
4. Reduce interference in secondary circuit which is in the large open area: the welding current is direct current. When there is induction or magnetic material in secondary winding, the welding will not be affected.
5. More adaptable to the fluctuation of power grid and voltage drop: a part of the energy has been stored by inverter and been supplied to load. It replaces the way of power supply to load directly from the power grid.
6. More precise and fast control of current: Compare with low frequency system, it is able to analyze more parameters in a more precise way.
7. The technology of MF system is more traditional and reliable which can prevent the damage results from the breakdown of silicon controlled.
8. Reduce operation cost, including saving the energy of each spot welding and reducing the cycle of welding.
Especially suitable for aluminum, copper, galvanized sheet, carbon steel, nickel, tungsten and other metal materials and high temperature enameled wire, flexible connection, inductance coil welding. It is widely used in the welding of metal products in the fields of automobile and auto parts manufacturing, new energy power battery, photoelectric communication, electric light source, compressor, hardware, furniture, kitchenware, etc. The product has passed the patent certification of China Intellectual Property Office, China CCC certification and export CE certification.
Enterprise Advantages
PDKJ, Born for metal welding
Honors and Patents (82)
FAQ
1,What is the lifespan of the spot welding machine? What regular maintenance is required?
Answer: The lifespan of the spot welding machine varies depending on usage environment and maintenance. To extend the equipment's lifespan, we recommend regular cleaning, tightening loose components, and inspecting electrical connections. Additionally, we provide regular inspection and maintenance services to ensure the long-term stable operation of the equipment.
These additional questions and answers further cover aspects such as welding modes, remote control, factors affecting welding quality, automatic detection capabilities, electrode adjustments, equipment lifespan, and maintenance. We hope they meet your requirements for online inquiries. Of course, specific answers may need to be personalized based on the actual requirements of customers and the characteristics of your company's products.
2,How is the welding speed of the spot welding machine adjusted?
Answer: The welding speed of the spot welding machine can be adjusted by adjusting welding parameters and control systems. By increasing or decreasing parameters such as welding current, welding time, and welding pressure, you can control the welding speed to adapt to different welding requirements.
3,How is the welding pressure of the spot welding machine adjusted? What are the influencing factors?
Answer: The welding pressure of the spot welding machine can be adjusted through the pneumatic system or mechanical devices. The main factors affecting welding pressure include material thickness, hardness, and welding process requirements. Proper welding pressure ensures the firmness and quality stability of the welding joint.
4,How to control noise generated during the welding process of the spot welding machine?
Answer: Noise generated during the welding process of the spot welding machine mainly comes from the contact between the electrode and the workpiece and the vibration generated when the current passes through. To control noise, the following measures can be taken: Firstly, choose welding equipment and power supply systems with low noise to reduce noise generation sources. Secondly, arrange the work area reasonably, placing the welding equipment in a place with good sound insulation to reduce noise transmission. Additionally, operators can wear noise-canceling earplugs or earmuffs to protect hearing health.
5,What should be paid attention to when the spot welding machine welds thin sheet materials?
Answer: When welding thin sheet materials, the spot welding machine needs to pay special attention to controlling the welding pressure and welding time to avoid over-welding, which may cause material deformation or burn-through. It is recommended to use smaller welding currents and shorter welding times, and adjust the welding pressure appropriately to achieve good welding results.
6,What welding modes does the spot welding machine have? Does it support continuous welding or spot welding?
Answer: Our spot welding machine supports multiple welding modes, including continuous welding and spot welding. You can choose the appropriate welding mode according to specific process requirements to achieve the best welding results.
7,How are the exhaust gases generated during the use of the spot welding machine treated?
Answer: The spot welding machine may generate some exhaust gases during the welding process, mainly smoke and harmful gases. To reduce the impact on the environment and operators, you can take the following measures: Firstly, ensure that the workplace has good ventilation conditions to timely exhaust the exhaust gases. Secondly, you can install exhaust gas treatment equipment, such as air purifiers, to filter and purify the exhaust gases.
8,What adjustments need to be made when the spot welding machine welds different materials?
Answer: When the spot welding machine needs to weld different materials, mainly adjustments need to be made to welding parameters, including welding current, welding time, and welding pressure. Different materials have different melting points, thermal conductivity, and resistivity, so adjusting parameters to adapt to the material's characteristics ensures welding quality.
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