Features
1.As a professional Resistance Spot Welding Machine, its electrode is easy to change after wear, don't need to change the complete electrode and electrode base, only for electrode parts, so decreasing the cost. 2.Machine body of thick steel sheet, not easy to deformation, making this equipment maintain stable structural performance as an Automatic Welding Machine. 3.Microcomputer control, accuracy and steady.
4.Water cooling transformer: Use silicon sheets of 15000 gauss permeability to pile up. There is cooling water in inside, using full copper alloy core, reducing impedance, improving the utilization of power, 20% duty cycle to ensure the requirement of long time welding, big output power. The useful lifetime is longer, noise is smaller, structure is more compact and reasonable.
5.Fast solenoid valve, making welding speed faster, thereby the productivity is higher, therefore decreasing cost — an obvious advantage of this Spot Welding Machine.
6.Cylinder adopt high accurate, anti-friction hard material, which is duralumin, without rust, lower friction, lower noise and loading is faster, thereby reducing the weld spatter.
7.Quality is stable, failure rate is low, therefore machine life is longer.
Application: Suitable for condenser and evaporator.
| DNW3-250-1200 | DNW-150-3 | DNW2-150-4 |
| Rated capacity (KVA) | 250 | 150 | 150 |
| Transformer | 1200type 250KVA MF inverter transformer | 150KVA AC transformer | 150KVA AC transformer |
| Rated voltage (V)/ Phase | 380/3 | 380/1 | 380/1 |
| Rated frequency(HZ) | 50 | 50 | 50 |
Max. short circuit Current (KA) | 42.9 | 36 | 36 |
| Duty cycle(%) | 50 | 20 | 20 |
| Max. pressure(N) | 5315 | 5315 | 5315 |
Upper electrode Stroke (mm) | 60 | 60 | 60 |
Lower electrode Stroke (mm) | 40 | 40 | 40 |
Cooling water flow (L/min) | 24 | 6 | 6 |
Max. welding width each electrode (mm) | 155mm | 100 | 100 |
Welding speed (pcs/ 8h) | 1000 | 800 | 800 |
Overall dimension (mm) L*W*H | 2600*670*1685 | 460*1100*1900 | 1250*680*1840 |
| Air pressure | ≥0.6mpa | ≥0.6mpa | ≥0.6mpa |
| Insulation class | F | F | F |



