The Single-Sided Spot Welder is an innovative resistance spot welding solution designed for complex metal assemblies where traditional two-sided clamping is impossible. Featuring a precision-engineered single-sided spot welding system, this machine is available in two distinct configurations: a highly mobile handheld spot welding gun for maximum reach, and a stabilized articulated arm (table-type) pneumatic system for superior weld consistency. Whether you are working on large flat sheets or enclosed metal cabinet structures, our single-sided technology ensures a strong, reliable bond with markless surface finish from just one side.
Features
- Ultimate Mobility (Handheld Type): Connected via flexible secondary cables, the handheld spot welding gun allows operators to move freely around oversized workpieces — making it the ideal tool for resistance spot welding in hard-to-reach areas..
- Precision Articulated Arm System (Table Type): Featuring a multi-jointed articulated arm and a vertical pneumatic welding head, this system moves smoothly across large workspaces, ensuring a perfectly vertical cylinder stroke for consistent, high-quality spot welds on every joint.
- Customizable Welding Arm Lengths: We offer custom-engineered arm lengths tailored to your specific production requirements. From compact reaches to extended industrial spans, we build customized welding arms to fit your exact workpiece geometries..
- Advanced Cooling Options: To support heavy-duty duty cycles, both the welding arms and secondary cables can be equipped with Air-Cooled or Water-Cooled systems, ensuring stable thermal performance and extended equipment service life.
- High-Efficiency Single-Sided Spot Welding: Optimized for welding structural frames, large metal plates, and enclosed box structures without requiring a back-side electrode, significantly simplifying sheet metal assembly workflows.
Specifications
| Specification | Model | KVA | Voltage(V) | Welding Thickness (mm) |
Machine Size (LxWxH - mm) |
|---|---|---|---|---|---|
| Handheld Type | SEF-30-S | 30 | 220/380 | 1.0+1.0 | 470 x 340 x520 |
| SEF-50-S | 50 | 220/380 | 1.2+1.2 | 520 x 350 x570 | |
| Custom-Made | Over 80 | ||||
| Articulated Type | Contact our Engineers for Custom Dimensions | ||||
Applications
- Large Cabinet & Enclosure Assembly: Perfect for welding internal stiffeners or floor-mounted panels where back-side access is restricted.
- Metal Furniture & Shelving: Provides a clean finish for large office furniture and industrial racking systems.
- HVAC & Large Ducting: Efficiently secures baffles and brackets inside large-scale ventilation units and housings.
Our single-sided spot welders are widely adopted in industries requiring specialized structural joining: