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PDKJ, BORN FOR METAL WELDIN
High Power ▪ Intermediate Frequency ▪ DC output current
Intermediate Frequency Inverter DC Spot (Convex) Welder
DTB-80 DTB-160 DTB-240 DTB-280 DTB-340 DTB-450
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 Advantages of PDKJ Intermediate Frequency Inverter DC Spot Welder
Question 1: What should be considered when using a medium-frequency inverter DC spot welder for welding enclosures?
When employing a medium-frequency inverter DC spot welder for welding enclosures, the following factors should be taken into account:
Question 2: What welding process is typically used for enclosures?
The most commonly employed welding processes for enclosures include:
Parameters of PDKJ Intermediate Frequency Inverter DC Spot Welder (1)
| 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 |
Characteristics of PDKJ Intermediate Frequency Inverter DC Spot Welder
Welding Automation and Non-standard Customized welding equipment
Since its establishment 18 years ago, PDKJ has designed and completed numerous cases of welding automation and production lines. It is a leading enterprise in automation technology in Dongguan, focusing on automatic welding in the fields of laser welding and Electric resistance welding. More than 3000 high-end users around the world have witnessed the common use.
Part of classic automation cases of PDKJ:
Anzhao Oil Heater Production Line, BYD Copper Wire Terminal Welding Machine, Leite Automobile Radiator Aluminum Parts Spot Welding Machine, Feng's Wire Mesh Welding Machine, Hettich Slide Rail Welding Machine, Qixin Side Furnace Medium Frequency Welding Machine, Huayangtong Door Plate Code Reinforcement Welding Machine, CRRC Copper Wire Welding Machine, Chongqing Linglong Small Chassis Automation Welding Machine, Nanjing Qiangli Laser Automation Production Line, etc.
1,How to select suitable electrode materials for the spot welding machine?
Answer: Selecting suitable electrode materials is crucial for welding quality and stability of the spot welding machine. Common electrode materials include copper, copper alloys, tungsten, etc. When choosing electrode materials, factors such as the type, thickness, and properties of the welding material, as well as temperature, pressure, and current during the welding process should be considered. Typically, copper or copper alloys can be chosen as electrode materials for welding materials with low melting points, while tungsten or other materials resistant to high temperatures may be required for welding materials with high melting points or special properties.
2,Can the spot welding machine be connected to other auxiliary equipment?
Answer: Yes, the spot welding machine typically supports connection to other auxiliary equipment such as welding fixtures, positioning devices, and automatic wire feeders. These auxiliary devices can improve welding accuracy and efficiency to meet more complex welding requirements.
3,Can we send samples to you for welding tests?
Answer: Yes. You can send samples for welding tests to us, and after testing, we will send you pictures and videos. If necessary, we can also return the samples to your country so that you can inspect the welding quality before ordering the machine.
4,Do spot welding machines have safety protection measures?
Answer: Yes, our spot welding machines have comprehensive safety protection measures. The equipment incorporates various safety mechanisms such as overload protection and overheat protection, ensuring that power can be cut off promptly in case of abnormal situations to protect the safety of operators and equipment.
5,What should be considered during the transportation and storage of the spot welding machine?
Answer: When transporting and storing the spot welding machine, ensure that the equipment is turned off and the power is disconnected. Also, avoid impacts and vibrations to prevent damage to internal components. The storage environment should be kept dry, ventilated, and protected from direct sunlight and high temperatures.
6,What should be noted when the spot welding machine welds stainless steel?
Answer: Welding stainless steel requires special attention to controlling the welding temperature and welding speed to avoid overheating or rapid cooling, which may result in poor welding quality. When spot welding stainless steel, due to its high thermal conductivity and low electrical resistivity, the following points should be noted: Firstly, select appropriate welding parameters, such as increasing the welding current and welding pressure appropriately, to ensure the penetration and firmness of the weld joint. Secondly, choose electrode materials and shapes suitable for stainless steel welding to improve the stability and quality of the welding process. Additionally, stainless steel is prone to oxidation and discoloration during welding, so appropriate protective measures, such as using shielding gas or flux, should be taken to prevent oxidation and discoloration. Moreover, stainless steel has good thermal conductivity, so suitable welding electrodes and proper welding pressure should be selected to ensure the firmness and aesthetics of the weld joint. Furthermore, welding stainless steel may generate more welding fumes, so it is necessary to ensure that the workplace has good ventilation conditions.
7,How much is the price of your machines?
Answer: The price of spot welding machines varies depending on factors such as model, configuration, brand, and others. Generally, as the functionality and configuration of the equipment increase, the price also increases accordingly.
Our machines are customized according to your requirements. If you want to obtain a suitable price, please provide us with the following information:
The material and thickness of your products
The minimum and maximum size of your products
The welding positions of your products
The level of automation you wish to achieve
It would be even better if you could provide us with detailed product drawings so that our engineers can propose appropriate technical solutions and prices for you.
8,What is the general service life of the spot welding machine? How to extend its service life?
Answer: The service life of the spot welding machine depends on several factors, including equipment quality, frequency of use, maintenance, and maintenance. The designed service life of our spot welding machine is 20 years, even under high-intensity working conditions. Many of our spot welding machines have been in normal operation for more than ten years. With normal use and regular maintenance, the service life of the spot welding machine can be extended. It is recommended to regularly clean, lubricate, and inspect the equipment, and avoid excessive use or improper operation.
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