Audited Supplier
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
No skill training required, easy to operate, and easy to master for beginners.
2. Design life 20 years
It is designed for the lifespan of 20 years, with over 100000 hours of intensive work and aging testing in industrial laboratories.
3. Good quality
The surface of the welding spot has few oxidation and deformation, even without any marks, and the welding is firm and has good quality.
4.Widely used
Metal cabinets, automotive components, fasteners, electronic components, instruments and meters, battery spot welding, hardware spot welding, electrical switches, terminal wires, wire mesh, mesh baskets, etc.
5. Fast welding speed
High power, fast dotting speed, short time consumption, high welding efficiency.
6. Customized
Can be customized fixtures, electrode arms, electrode holders, and electrode heads of different sizes for different product work-pieces, and can customize highly automated welding equipment and production lines.
Question 1: What are the advantages of PDKJ spot welder?
High performance: PDKJ spot welders usually use advanced inverter technology and high-frequency transformers to provide fast and stable welding current, so as to achieve high performance welding operations. This high efficiency not only improves production efficiency, but also reduces production costs.
High welding quality: PDKJ spot welder can ensure the consistency and quality of solder joints by precisely controlling welding parameters, such as welding current, time, pressure, etc. The weld core formed during the welding process is stable and the electrode life is long, thus ensuring the strength and reliability of the welded joint.
Parameters of PDKJ Intermediate Frequency Inverter DC Spot Welder (1)
| parameter | DTB-80 | DTB-160 | DTB-240 |
| Rated capacity | 80KVA | 160KVA | 240KVA |
| Input power | 3 φ 380V | 3 φ 380V | 3 φ 380V |
| short-circuit current | 25KA | 35KA | 50KA |
| 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 | 6000N | 6000N | 12000N |
| Electrode stroke | 80mm | 80mm | 100mm |
| Cooling water flow | 12L/min | 12L/min | 14L/min |
| Welding capacity /Al. plate | 2.0+2.0mm | 2.5+2.5mm | 3.0+3.0mm |
| Welding capacity / carbon steel | 2.5+2.5mm | 3.0+3.0mm | 4.0+4.0mm |
| Electrode arm size | φ 59x173mm | φ 59x173mm | φ 74x195mm |
| Electrode holder size | φ 24.6 × 180mm | φ 24.6 × 180mm | φ 31.6 × 250mm |
| Electrode head size | φ 16x50mm | φ 16x50mm | φ 20x60mm |
| weight | 336kg | 384kg | 733kg |
| Overall dimension | 1180*750*1830mm | 1180*750*1830mm | 1205*870*2140mm |
| 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
The intermediate frequency welding controller and current closed-loop control can control the actual welding current at high speed. The output current is DC, and the current is smooth, the inductance reactance is zero. The working frequency is 1000Hz, and the time control accuracy is 1ms. The welding program can achieve multiple welding functions such as preheating, welding, and tempering to achieve complex welding functions. Humanized design, can save multiple welding presets.
The interface is simple and beautiful, and the operation is simple. Multi language switching between Chinese and English, with clear welding parameters at a glance. Cooperate with preset functions to achieve fast welding.
Transparent and intuitive water flow meter for easy observation and adjustment of cooling water flow. PDKJ customized anti-corrosion and anti-aging soft water pipes have a long service life and prevent water leakage accidents. Stable and appropriate temperature can improve welding quality and speed.
The body is designed with a high-strength thickened steel plate mechanical structure, which is stable and rigid, ensuring that the body does not vibrate during welding, and large welded work-pieces do not shake. The high-strength corrosion-resistant nano coating body can ensure machine quality and ultra long service life. And it won the Red Dot, known as the "beautiful spot welder".
The transformer of PDKJ is made of pure copper for both primary and secondary poles, with a high conductivity magnetic core and high-quality epoxy resin poured inside. It has good insulation performance and stable performance, and is packaged in a stainless steel shell, with a compact and beautiful appearance. The rectifier component adopts high-power ABB diodes, with stable performance and high efficiency, making it the most reliable heart of PDKJ spot welding machine.
The welding platform adopts high conductivity brass material with the copper content of 85%, integrated electrode voltage mechanism, short gas path, compact structure, fast reaction speed, and more convenient installation and maintenance. The stroke between electrodes is adjustable, which can greatly improve the welding speed. Internally, it adopts water-cooled circulation for heat dissipation, and can quickly replace welding fixtures and electrode heads.
The seventh generation pressure stabilizing cylinder developed specifically for welding has fast response speed, high pressure resistance, and long service life, meeting the needs of high-speed welding. The cylinder directional valve adopts SMC/Airtag triple body, with fast response speed and large flow rate, meeting the requirements of high-speed management.
The body comes with an LS air switch, and the circuit design fully complies with the humidity breakdown voltage standard for electrical equipment air gaps. The body is equipped with an emergency stop button. All electrical designs strictly comply with safety standards from China, the European Union, and North America.
Cooling component of spot welding machine
Large capacity water tank, stainless steel shell for heat dissipation, combined with high-power water pump, using room temperature water circulation cooling. This standard cooling component can meet welding operations with general strength. Maintaining the spot welding machine at the optimal working temperature can improve welding quality and accuracy, and extend the service life of the machine. It's recommended to use spot projection welding machine with power less than 160KVA for optional.
When the temperature is below 0ºC, please use antifreeze.
1.Vertical top air outlet design, easy installation and maintenance.
2.High quality brand refrigeration components, with a control accuracy of ± 1.0 ºC to ± 3.0 ºC;
3.Stainless steel multi-stage centrifugal pump and stainless steel water tank, PVC connection material, no worry of rust;
4.Multiple alarm protection functions and providing passive signal output;
5.Independently developed and produced bilingual intelligent temperature controllers in Chinese and English, with various settings and fault prompt functions, making operation simple and convenient;
6.The pure water filtration protection device ensures the safe operation of the equipment;
This advanced cooling component can meet ultra-high strength welding work. Maintaining the spot welding machine at the optimal working temperature can improve welding quality and accuracy, and extend the service life of the machine. It's recommended to use 170KVA spot projection welding machine for optional.
When the temperature is below 0 ºC, please use antifreeze.
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.
Question:What are the characteristics of the spot welder?
(1)Multiple functions: The spot welder has a variety of functions, such as two pressurized solenoid valve control (with boost control), 4/15 specification selection function, single spot welding and continuous spot welding function. At the same time, its multi-window programmer display makes the operation simple and convenient, and has the functions of power off data saving and error self-detection.
(2)Wide range of application: spot welding machine can weld a variety of materials, including iron metal, stainless steel, but also can weld silver, copper, aluminum and other difficult metals and non-identical metal welding. The solder joint is small and reliable, good electrical conductivity, no signal attenuation, especially suitable for the occasion of strict welding heat energy requirements.
(3)Excellent performance: spot welding machine adopts inverter power supply as heating source, with accurate control, stable heat output, dynamic response fast characteristics. In addition, due to the short welding time and large welding current, the overheating oxidation and deformation of the workpiece caused by the heat generated by the welding process are reduced to a minimum.
1,How is the welding joint quality of the spot welding machine ensured?
Answer: The welding joint quality of the spot welding machine is affected by multiple factors, including welding parameters, welding materials, electrode conditions, etc. The spot welding machine we provide is equipped with a precise parameter control system and high-quality welding electrodes, which can ensure the stability and quality of the welding joint. Additionally, we provide welding quality inspection and evaluation services, which can conduct strict testing and evaluation of welding joints to ensure that the welding quality meets relevant standards and requirements.
2,How do we install the machine?
Answer: For some simple machines, we will provide you with English operation manuals, operation videos, and online guidance and training for your engineers to easily set up the machine. For more complex machines, we will send engineers to your country to assist with installation and training. However, there will be additional costs for engineers, including wages, visa fees, round-trip airfare, and accommodation, which will be borne by the buyer.
3,How is quality inspection carried out after welding on the spot welding machine?
Answer: Quality inspection after welding on the spot welding machine mainly includes visual inspection, destructive testing, and non-destructive testing. Visual inspection mainly observes the appearance quality of the weld, such as whether the weld is smooth and free of cracks, etc. Destructive testing involves mechanical property tests such as tensile and bending tests conducted on samples to evaluate the strength of the weld. Non-destructive testing includes methods such as X-ray inspection and ultrasonic testing to detect defects inside the weld. Select appropriate testing methods for quality inspection based on specific requirements and industry standards.
4,How is the cooling system of the spot welding machine maintained?
Answer: The cooling system of the spot welding machine is crucial for ensuring stable.
