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Portable spot welding machine DNJ-50 Portable spot welding machine This kind of spot welding machine can be divided into two types: one is suspended, the other is portable. The resistance welding transformer and welding clamp of the former can be separated or integrated, but their resistance welding transformer and welding clamp are generally water-cooled; The resistance welding transformer of the latter is always connected with the welding tongs. In order to reduce weight and facilitate carrying, natural air cooling is adopted, but its rated power cannot be too large (less than 2.5kVA), and the load duration is very low, usually only once/min |
Circulating water cooling design 
Automatic spot welder power 
PRODUCT SPECIFICATIONS 
| Model | DN-25 | DN-40 | DN-50 | DN-80 |
| Input voltage（V） | AC380±15% | AC380±15% | AC380±15% | AC380±15% |
| Hertz（HZ） | 50/60 | 50/60 | 50/60 | 50/60 |
| Welding thickness (mm) | 0.1+0.1mm～2.0+2.0 | 0.1+0.1mm～3.0+3.0 | 0.1+0.1mm～4.0+4.0 | 0.1+0.1mm～5.0+5.0 |
| Rated capacitor （KVA) | 25 | 40 | 50 | 80 |
| Unload voltage（V） | 4～15V | 4～15V | 4～15V | 4～15V |
| Duty cycle | 20% | 20% | 20% | 20% |
| Cooling water flow（L） | 5L/min | 5L/min | 5L/min | 5L/min |
| Protection degrees | IP21S | IP21S | IP21S | IP21S |
| Overall size（mm） | 550×385×550 | 550×385×550 | 550×385×550 | 550×385×550 |
| weight（KG） | 60 | 80 | 98.8 | 108 |
video and 3D of machine 
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Portable spot welding machine DNJ-50Portable spot welding machine This kind of spot welding machine can be divided into two types: one is suspended, the other is portable. The resistance welding transformer and welding clamp of the former can be separated or integrated, but their resistance welding transformer and welding clamp are generally water-cooled; The resistance welding transformer of the latter is always connected with the welding tongs. In order to reduce weight and facilitate carrying, natural air cooling is adopted, but its rated power cannot be too large (less than 2.5kVA), and the load duration is very low, usually only once/min…
Insulation stud welding machine is one of the energy-storage stud welding machines. It is a professional stud welding machine for welding insulation studs. Stud welding machine refers to the welding machine that welds the entire end face on the workpiece through transient pressurization and discharge of metal studs or similar parts. The stud is pressed into the molten pool by the spring pressure in the welding gun, thus forming the metal recrystallization connection. Arc stud welding is one of the fusion welding methods. Its joint is formed under the spring pressure in the welding gun, so it has the characteristics of pressure welding. After the stud is inserted into the molten pool, it cannot be powered off immediately, and it is not allowed to power off before the stud falls into the molten pool. A period of electric upsetting time is required to ensure that the joint can form a complete recrystallization process.…
A foot operated spot welding machine is a device that forms a certain contact resistance between two layers of metal under the pressure of two electrodes. The spot welding machine adopts the principle of double-sided double point overcurrent welding. During operation, two electrodes pressurize the workpiece to form a certain contact resistance between the two layers of metal under the pressure of the two electrodes. When the welding current flows from one electrode to the other electrode, an instant hot melt is formed at the two contact resistance points, and the welding current instantly flows from the other electrode along the two workpiece to form a circuit, without damaging the internal structure of the welded part.…
Inverted (short cycle) arc stud welding machine RSN-1600The arc stud welding machine is composed of welding power supply, controller, welding gun, ground wire clamp, welding cable, etc. However, the welding power supply of most welding equipment is integrated with the controller, which is called the host. Different from the welding principle of the energy-storage stud welding machine, the pull-arc stud welding machine has no capacitor charging process. The whole welding process is completed through the discharge of the welding power supply, and the thyristor controls the discharge time. The discharge time is 5-500 milliseconds. The more advanced control method is to use the intelligent control of single chip computer to set and timely control the welding current, welding time and other parameters in the welding process.…
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