Quality Automatic Gantry Type Multi Head Projection Spot Welder AC Resistance
This Quality AC Resistance Gantry-Type Multi-Head Automatic Spot Welder is an industrial-grade, high-efficiency welding platform based on Alternating Current (AC) resistance welding principles. It is engineered for the high-efficiency, high-consistency multi-point or full-row projection welding of large, flat workpieces. Its defining features include a stable gantry frame and multiple independently adjustable upper electrode systems, used in conjunction with dedicated square, planar-contact electrodes. This enables the simultaneous completion of multiple or even an entire row of weld spots in one cycle, dramatically increasing the production rate for large sheet metal parts, grating, and similar products. The machine operates with stability and minimal weld distortion. Its high-power thyristor power supply and microprocessor-based fast-response control ensure precise and consistent energy delivery to each weld spot, making it a professional and reliable choice for achieving scalable, automated multi-point welding production
| Item/Model | DN-40 | DN-63 | D(T)N-80 | D(T)N-100 | D(T)N-125 | D(T)N-160 | D(T)N-200 |
|---|---|---|---|---|---|---|---|
| Rated power At 50%(KVA) | 40 | 63 | 80 | 100 | 125 | 160 | 200 |
| Rated primary power(V) | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
| Secondary Voltage(V) | 5.2 | 6.7 | 7.9 | 8.3 | 8.6 | 9.1 | 10.6 |
| Rated frequency(HZ) | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| Max.Short Circuit Current(KA) | 14 | 15 | 16 | 18 | 20 | 28 | 34 |
| Max. weld power(KVA) | 62 | 86 | 170 | 280 | 300 | 330 | 410 |
| Throat(MM) | 400 | 400 | 400 | 450 | 450 | 450 | 450 |
| Max.Froce at electrodes(N) | 6000 | 6000 | 10000 | 10000 | 10000 | 12000 | 12000 |
| Working stroke(MM) | 20 | 20 | 30 | 40 | 40 | 50 | 50 |
| Cooling Water Consumpion 2.5bar(L/min) | 6 | 6 | 8 | 8 | 8 | 10 | 10 |
| Electrodes tip(MM) | Φ13*45 | Φ13*45 | Φ16*45 | Φ16*45 | Φ16*45 | Φ20*45 | Φ20*45 |
| Arms(MM) | Φ50*150 | Φ50*150 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 |
| Projection Clamping Plate(MM) | 125*125 | 125*125 | 200*200 | 200*200 | 200*200 | 200*200 | 200*200 |
| Max.Welding Capaciry A3 steel(MM) | 2.5+2.5 | 3+3 | 4+4 | 4.5+4.5 | 5+5 | 5+5 | 6+6 |
High-Efficiency Gantry Multi-Head Welding: Features a robust gantry structure integrating multiple upper electrodes pressurized by independent air cylinders. The force and stroke of each electrode can be individually fine-tuned, enabling the uniform completion of multiple or a full row of weld spots in a single operation. This offers exceptional efficiency, specifically designed for large workpieces.
Precise & Adjustable Force Control: The upper electrodes are pressurized by air cylinders, allowing for convenient and accurate force adjustment. The descent and ascent speeds of the pressure head are independently and infinitely adjustable, enabling cushioned contact with the workpiece to effectively mitigate impact and reduce noise.
Intelligent & Stable Welding Power: The main circuit utilizes high-power thyristor components for strong, stable, and reliable power output. It is equipped with a microprocessor-based fast-response touch controller for fully digital control. The user interface is simple and clear, featuring automatic detection and compensation to effectively prevent defects like cold welds and insufficient fusion.
Safe & Reliable Design: The secondary conductor employs an upper insulation method, providing stable and reliable insulation performance. Operation is controlled by a foot switch, ensuring high productivity with low labor intensity and guaranteeing safe, convenient continuous operation
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