New Stationary Resistance Spot Welder For M20 Screw Stud Bolt Nuts Welding
This Capacitive Energy Storage Spot & Projection Welding Machine is an industrial-grade precision welding platform, engineered to meet the demanding requirements of high-standard fastener projection welding and sheet metal spot welding. At its core lies advanced capacitor discharge technology, which enables the millisecond-level instantaneous release of a highly concentrated and stable high current. This allows for the flawless execution of high-quality projection welding on various metal fasteners such as screws, nuts, bolts, and studs (e.g., M20 size), alongside effortless completion of conventional sheet spot welding tasks. The machine operates on a collaborative "manual load/unload, automatic weld" mode, integrated with a rugged frame weighing 2000KG. This combination guarantees absolutely stable power output during welding and ultimate uniformity in weld quality, making it the definitive choice for pursuing superior connection integrity
| Items Models | DN(B)-100 | DN(B)-160 | DN(B)-200 | DN(B)-250 |
|---|---|---|---|---|
| Rated power (KVA) | 100 | 160 | 200 | 250 |
| Power input(V) | 3φAC 380V | 3φAC 380V | 3φAC 380V | 3φAC 380V |
| Max. short circuit current (KA) | 30 | 35 | 40 | 45 |
| Duty cycle(%) | 50 | 50 | 50 | 50 |
| Max. force(N) | 6000 | 6000 | 10000 | 15000 |
| Electrode length( MM) | 450 | 450 | 450 | 500 |
| Working stroke( MM) | 80 | 80 | 80 | 80 |
| Cooling consumption(L/min) | 20 | 20 | 20 | 20 |
| Max. welding capacity(MM) | 3.0+3.0 | 4.0+4.0 | 5.0+5.0 | 6.0+6.0 |
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Precise & Controllable Capacitive Discharge Technology: Operating on the capacitor discharge principle, the system efficiently stores grid energy in high-capacity capacitors and releases it instantaneously at millisecond speed during welding. This characteristic of extremely short duration and high peak current instantly overcomes the contact resistance of highly conductive metals (e.g., aluminum, copper) or coated metals, forming a concentrated and precise weld nugget. It is particularly effective for materials with high thermal conductivity, significantly reducing thermal distortion and spatter.
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Dual-Function Machine for Diverse Processes: This welder combines the capabilities of both high-performance spot welding and precision projection welding, offering wide application versatility. It functions as an efficient spot welder for sheets without predefined projections. For welding fasteners like screws and nuts, it leverages the advantages of projection welding to achieve precise, robust connections at the contact points, providing users with unparalleled process flexibility.
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Deeply Optimized for Projection Welding: The equipment is specifically optimized for projection welding processes. Its instantaneous high-current output perfectly matches the projections on screws and nuts, ensuring nearly simultaneous collapse and fusion of all projections at the moment of current flow, forming a high-strength rectangular weld nugget. This not only results in joint strength far exceeding that of standard spot welds but also effectively prevents thread damage and post-weld distortion, guaranteeing the dimensional accuracy and functionality of the workpiece.
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Superior and Consistent Weld Quality: Thanks to the precise pre-storage and release of welding energy, the energy delivered in each weld cycle is highly consistent and completely unaffected by grid voltage fluctuations. This fundamentally ensures that from the first to the ten-thousandth weld spot, results with stable nugget size and a uniformly aesthetic appearance can be achieved. The exceptionally high product yield rate makes it perfectly suited for large-scale automated production with stringent quality requirements
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