DN Bench Type Spot/Projection Welder
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The DN bench type spot/projection welder is widely used for numerous welding process and features reduced installation costs. A standard spot weld with a current path directly through the workpiece between opposing electrodes can be achieved using this resistance welding machine. It operates with lead-free soldering technology, making it an eco-friendly joining method. In compliance with ROHS/SGS standards, this welder delivers excellent temperature tolerance, making it suitable for strategically placed small spot welds.
Features
- Solid structure with high strength. High structural rigidity of the welding machine arms, holders and inline bearings can insure positive alignment, minimal deflection and reduced friction.
- Fast electrode response for quick welding. Electrodes are equipped with speed control valves, shock absorber for end of stroke and air discharge silencers to minimize the noise.
- Insulation protection for safety. Low-friction air cylinder is insulated from the electrode body to ensure heavy duty performance and a long working lifetime.
- Welding power sources maximizes energy savings. Water-cooled resistance-welding transformers and silicon controlled rectifiers for checking the correct diode clamping force.
Parameter
| Model | DN-16 | DN-25 | DN-40 | |
| Item | Unit | |||
| Rated voltage | V | 380 | ||
| Rated frequency | HZ | 50/60 | ||
| Rated capacity | KVA | 16 | 25 | 40 |
| Rated duty cycle | % | 30 | ||
| Insulation class | B | |||
| Maximum secondary short circuit current | A | 12500 | 16000 | 22000 |
| Maximum welding power | KVA | 25 | 35 | 63 |
| Maximum pressure | N | 550 | 550 | 550 |
| Stroke | mm | 30 | 30 | 30 |
| Air pressure | Mpa | 0.5 | ||
| Cooling water flow | L/min | 5 | 5 | 5 |
| Arm extension length | 200 | |||
| Weight | KG | 135 | 150 | 165 |
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