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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 are the characteristics of spot welder?
(1)How it works: The welding machine adopts the principle of double-sided double-point overcurrent welding. When the two electrodes pressurize the workpiece, the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, the instant hot melt is formed at the two contact resistance points, and the welding current flows from the other electrode along the two workpieces to the electrode to form a loop. This process does not damage the internal structure of the welded part.
(2)Control mode: The welding process of the spot welding machine is controlled by the microcomputer in a closed loop, which ensures that the welding current can be kept constant in the case of power grid voltage fluctuations and welding load changes, so as to ensure the quality of the welding spot. In addition, it also has three control functions of constant current, constant voltage and constant phase Angle.
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
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.
Q1: What is the quality of the welds achieved when using a vertical spot welder for enclosure assembly?
A1: The quality of welds achieved when using a vertical spot welder for enclosure assembly is characterized by:
Q2: How does a vertical spot welder perform in the context of welding enclosures?
A2: A vertical spot welder performs well in the context of welding enclosures due to its:
1,When welding materials of different thicknesses, does the spot welding machine require electrode replacement?
Answer: Typically, when welding materials of different thicknesses, it may be necessary to adjust the electrode spacing or replace suitable electrodes. Our spot welding machine is designed to be flexible, allowing electrode adjustments and replacements according to the welding requirements of different workpieces' thicknesses.
2,Can the spot welding machine meet the welding requirements of special industries, such as aerospace or medical devices?
Answer: Yes, our spot welding machine can be customized to meet the welding requirements of special industries. For industries such as aerospace or medical devices, we have rich experience and a professional technical team to provide welding solutions that meet industry standards and quality requirements.
3,Does the spot welding machine require cooling during the welding process?
Answer: Yes, during continuous high-intensity welding, the spot welding machine generates a certain amount of heat. To ensure equipment stability and prolong its service life, it is typically equipped with a cooling system. The cooling system can effectively reduce equipment temperature through methods such as circulating cooling water or fan cooling.
4,What is the noise level of the spot welding machine? Does it meet relevant standards?
Answer: Our spot welding machine is designed with low noise levels, and under normal working conditions, the noise level is very low, fully complying with national standards and requirements. You can use it with confidence without causing noise pollution to the work environment.
5,How to ensure the stability of welding quality during the welding process of the spot welding machine?
Answer: To ensure the stability of welding quality, the spot welding machine adopts advanced welding control systems and precise parameter adjustment mechanisms. By precisely controlling key parameters such as welding current, welding time, and welding pressure, the spot welding machine can stably output high-quality welding results. Additionally, regularly maintaining and servicing the equipment to ensure the integrity and cleanliness of the electrodes is also an important measure to ensure the stability of welding quality.
6,How is the spacing of the welding electrodes adjusted on the spot welding machine?
Answer: Adjusting the spacing of the welding electrodes depends on specific welding requirements and material thickness. Typically, the equipment is equipped with electrode spacing adjustment devices, and operators can adjust the electrode spacing manually or automatically. During adjustment, ensure that the electrode spacing matches the thickness of the welding material to achieve the best welding results.
7,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.
8,Can the spot welding machine be customized to meet special requirements?
Answer: Yes, we pay close attention to customers' personalized needs. If you have special welding requirements or process requirements, we can customize development according to your needs to tailor a spot welding machine that meets your requirements, such as custom fixtures, electrode heads and arms, and increased height or length of the machine body.
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