Chengdu Xinwei Welding Technology Co., Ltd.
| Packaging Details | wooden box |
| Capacity | 100/160/200/250 KVA |
| Supply Ability | 5 sets/month |
| Max welding capacity | 3.0+3.0/4.0+4.0/5.0+5.0/6.0+6.0 MM |
| Duty Cycle | 50% |
| Max Electrode Force | 6000-15000 N |
| Input Power | 3-Phase AC 380V |
| Cooling Water Flow | 20 L/min |
| Max Welding Thickness | 3.0+3.0 to 6.0+6.0 MM |
| Max Short Circuit Current | 30-45 KA |
| Working Stroke | 80 MM |
| Delivery Time | 25-35working days |
| Product Name | Semi Automatic Projection Spot Welder Aluminum DC Resistance Welding Machine |
| Payment Terms | L/C,D/A,D/P,T/T |
| Rated duty cycle | 50% |
| Function | Multi-head spot welding with simultaneous or independent head control |
| Brand Name | Xinwei |
| Place of Origin | Sichuan, China |
| Certification | CE |
View Detail Information
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Product Specification
| Packaging Details | wooden box | Capacity | 100/160/200/250 KVA |
| Supply Ability | 5 sets/month | Max welding capacity | 3.0+3.0/4.0+4.0/5.0+5.0/6.0+6.0 MM |
| Duty Cycle | 50% | Max Electrode Force | 6000-15000 N |
| Input Power | 3-Phase AC 380V | Cooling Water Flow | 20 L/min |
| Max Welding Thickness | 3.0+3.0 to 6.0+6.0 MM | Max Short Circuit Current | 30-45 KA |
| Working Stroke | 80 MM | Delivery Time | 25-35working days |
| Product Name | Semi Automatic Projection Spot Welder Aluminum DC Resistance Welding Machine | Payment Terms | L/C,D/A,D/P,T/T |
| Rated duty cycle | 50% | Function | Multi-head spot welding with simultaneous or independent head control |
| Brand Name | Xinwei | Place of Origin | Sichuan, China |
| Certification | CE | ||
| High Light | aluminum projection welders ，aluminum spot projection welding machine ，resistance projection welders | ||
This Multi Point Head Spot Welding Machine is a semi-automatic gantry resistance spot welder engineered for high-speed, multi-point DC welding of aluminum and steel components. Featuring five independently controllable welding heads, the machine delivers precise, repeatable welds across sheet metal, metal mesh, automotive parts, and home appliance casings, enabling manufacturers to significantly boost throughput without compromising joint quality.
Built with a rigid single-column impact-resistant frame and reinforced ribs, the machine minimizes structural deformation during continuous operation, protecting weld stability and operator safety. The integrated pneumatic proportional valve, auxiliary-cylinder electrode pressurization, and capacitive charge-discharge circuit ensure consistent pressure, fast follow-up response, and energy-efficient welding suitable for 24/7 production environments.
The five welding heads can operate simultaneously, progressively, or separately via individual control. This flexibility enables multi-point welding in a single clamping action, reducing cycle time and improving throughput for complex workpieces compared to single-head resistance welders.
The upper electrode moves vertically within a high-precision linear guide, achieving accurate repeated positioning for consistent weld points. The auxiliary cylinder allows continuous stroke adjustment, ensuring optimal electrode force distribution and superior weld quality on every cycle.
A pilot-operated high-flow solenoid valve combined with an aluminum alloy cylinder barrel and low-friction sealing rings delivers ultra-fast response and sensitive follow-up performance. The electrical proportional valve precisely regulates welding pressure, enabling fine-tuned control for aluminum and coated materials.
The main welding circuit utilizes a fully water-cooled resistance welding transformer and rectifier, providing strong output power with efficient thermal management. Capacitive charge-discharge technology shortens welding time, lowers energy consumption, and extends transformer service life in demanding production lines.
Built-in air pressure and water pressure switches with audible alarms prevent welding operation under insufficient cooling or air supply, protecting equipment integrity and reducing unplanned downtime. Insulated secondary circuit design eliminates short-circuit risks during direct lower-seat installation.
Foot-switch controlled operation matches standard operator habits, minimizing physical strain and enabling high production rates. The adjustable descent and ascent speed of the pressure head reduces impact on workpieces and lowers operational noise, creating a safer, more comfortable working environment.
| Industry | Typical Workpiece | Welding Mode |
|---|---|---|
| Sheet Metal Fabrication | Cabinets, enclosures, brackets | Multi-point projection welding |
| Metal Mesh Manufacturing | Welded wire mesh panels, grilles | Simultaneous multi-head spot welding |
| Automotive Manufacturing | Seat frames, brackets, reinforcements | Sequential / individual head control |
| Home Appliance Production | Washing machine shells, oven panels | Multi-point spot welding |
The machine integrates a main frame, pneumatic transmission mechanism, upper electrodes, welding transformer, and a digital welding controller. Each electrode head applies controlled pneumatic force to clamp the workpiece, while the capacitive charge-discharge circuit rapidly releases stored energy through the water-cooled transformer to create a localized resistance weld. The electrical proportional valve modulates air pressure in real time, while the auxiliary cylinder ensures precise stroke adjustment. Water and air pressure safety switches continuously monitor system status, interrupting operation if cooling or air supply falls below safe thresholds, protecting both equipment and product quality.
| Parameter | Unit | 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 Water 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 |
Standard delivery is typically 30–45 days after order confirmation, depending on the model and customization level. We will provide a confirmed shipping schedule in the formal quotation.
Yes. Each of the five heads can be set to operate simultaneously, progressively, or individually through the welding controller. This allows you to weld different patterns or specific points on the same workpiece without changing tooling.
Routine maintenance includes checking and cleaning electrode tips, inspecting water flow and air pressure, and verifying the condition of sealing rings. Surface-treated waterway components reduce rust risk, and the independent drainage system makes blockages easy to detect and clear.
Yes, the DC resistance welding design supports both aluminum and steel. The electrical proportional valve allows precise pressure adjustment, and the fast-response cylinder system delivers the short weld times recommended for aluminum to prevent excessive heat input.
Yes. Our engineering team provides remote installation guidance and operator training via video conference. For larger orders, on-site commissioning can be arranged upon request. Detailed documentation is also included for local reference.
Send us your workpiece drawings and production requirements. Our engineering team will evaluate your application, configure the optimal solution, and provide a detailed proposal with electrode design and automation integration options.
Send Drawing | Request Welding Test | Get Custom Solution
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Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
$35000000-$50000000
Employee Number:
70~95
Ecer Certification：
Verified Supplier
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