LSW-1500 Platform type non-marking laser welding machine
LSW-1500 Platform Type Non-Marking Laser Welding Machine delivers precise laser welding with minimal surface marks. Designed for high-quality metal fabrication, it provides stable performance for stainless steel, aluminum, and sheet metal applications.
LSW-1500 Platform Type Non-Marking Laser Welding Machine
The LSW-1500 Platform Type Non-Marking Laser Welding Machine is a swing-arm seamless laser spot welder designed for manufacturers who need both high welding strength and outstanding product appearance. It combines a stable platform structure with a flexible swing-arm (rocker arm) double-pendulum laser welding head, delivering precise laser spot welding for a wide range of metal components with minimal heat input and surface deformation.
Its key advantage is single-sided laser spot welding with a nearly mark-free reverse surface under suitable materials and welding conditions. Reinforcement structures and internal components can be welded from one side while the visible surface stays clean — reducing or even eliminating grinding, polishing, and other post-welding processes, and saving both labor and production time.
It is particularly suitable for stainless steel products, sheet metal assemblies, precision hardware, battery connection components, and automotive parts where both structural strength and visual quality matter.
1. The operator places the workpiece on the stable platform and aligns the welding point using infrared aiming and positioning.
2. The double-pendulum welding head delivers a focused 1064 nm fiber laser beam to the joint, with programmable welding parameters for each product.
3. The concentrated laser energy forms a precise spot weld with a very small heat-affected zone, while the reverse surface of the workpiece remains nearly mark-free under suitable materials and parameters.
4. The operator moves the swing-arm welding head to the next position and repeats the process — the workpiece stays fixed on the platform throughout welding.
1. Nearly Mark-Free Reverse Surface. Single-sided laser spot welding keeps the reverse surface nearly mark-free for suitable materials and process parameters, helping produce cleaner, more attractive finished products.
2. Excellent Surface Appearance. The concentrated laser beam minimizes oxidation, spatter, and discoloration, resulting in clean welds and reducing the need for grinding or polishing.
3. Flexible Swing-Arm Welding Head. The adjustable swing arm (double pendulum torch) lets operators reach different welding positions easily, making the machine ideal for products of various sizes and shapes across the 1000 * 600 mm working area.
4. Stable Platform Positioning. The heavy-duty platform ensures accurate workpiece positioning, providing excellent repeatability and welding consistency during production.
5. Minimal Heat Input. The focused laser spot creates a very small heat-affected zone, reducing thermal deformation and helping preserve the original shape and finish of precision metal components.
6. Infrared Aiming and Programmable Parameters. Infrared positioning and programmable welding parameters simplify operation, so precise spot welding no longer depends on the operator's skill level.
7. Customizable Working Area. The standard 1000 * 600 mm table can be customized to 1200 * 800 mm or other sizes according to the workpiece dimensions and production layout.
High Strength and High Appearance in One Machine. The LSW-1500 delivers reliable weld strength while keeping the visible surface clean — no trade-off between structure and appearance.
Reduced Post-Welding Finishing. Nearly mark-free welding means less grinding, polishing, and rework, cutting labor cost and shortening the production cycle.
Less Deformation on Precision Parts. Minimal heat input protects thin sheets and precision components from thermal distortion, preserving dimensional accuracy.
Wider Welding Range with Less Handling. The swing-arm head covers the whole table area, so large workpieces do not need to be repositioned between welding points.
Easy to Learn and Operate. Infrared aiming, programmable parameters, and stable laser output allow operators to produce consistent welds after basic training — no professional welder certification required.
Compared with a traditional resistance spot welder, the swing-arm laser spot welder differs in several aspects:
| Aspect | Swing-arm laser spot welder | Traditional spot welder |
|---|---|---|
| Operation | Easy to operate after basic training | Requires professional training |
| Welding strength | Better welding strength | Average welding quality |
| Post-processing | No secondary grinding required | Needs secondary grinding |
| Appearance | No marks on the reverse of welded parts | Visible solder joints on both sides |
| Workpiece deformation | Less deformation | More deformation |
| Welding range | Flexible range with movable swing arm | Fixed single welding range |
| Welding cost | Lower welding cost | Higher welding cost |
| Environmental impact | More environmentally friendly | Greater environmental impact |
Actual welding performance depends on the material, thickness, joint design, and process parameters.
The LSW-1500 is widely used for laser spot welding of:
- Stainless steel products
- Sheet metal assemblies
- Precision hardware
- Battery connection components
- Automotive parts
- Kitchen equipment and household hardware
- Metal products where both strength and visual quality are required
| Material | Welding capability (1500 W) |
|---|---|
| Stainless steel | 0.2–3 mm |
| Carbon steel | 0.2–3 mm |
| Galvanized steel | 0.2–2 mm |
| Aluminum | 0.2–2 mm |
Higher laser power configurations (2000 W / 3000 W) are available on request for thicker materials and higher throughput requirements.
Q1: What does “non-marking" welding mean?
A: For suitable materials and welding parameters, the machine welds from one side while the reverse surface of the workpiece stays nearly mark-free. This keeps the visible side of the product clean and reduces or eliminates post-weld grinding and polishing.
Q2: What materials and thicknesses can it weld?
A: With the standard 1500 W configuration, it welds stainless steel and carbon steel from 0.2 to 3 mm, and galvanized steel and aluminum from 0.2 to 2 mm. Higher-power options (2000 W / 3000 W) extend the capability for thicker materials.
Q3: What is the welding range and can the table be customized?
A: The standard swing-arm working range and table size are 1000 * 600 mm, customizable to 1200 * 800 mm or other sizes according to your workpiece and layout.
Q4: How does it compare with a traditional resistance spot welder?
A: The swing-arm laser spot welder offers stronger welds, no marks on the reverse side, less deformation, a flexible welding range, lower welding cost, and no secondary grinding. See the comparison table above for details.
Q5: What is the delivery time and minimum order quantity?
A: The minimum order quantity is 1 unit. Standard packaging is a wooden case, and the typical delivery time is 14 working days.
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Want to see whether non-marking laser spot welding works for your product? Send us your workpiece drawing or material details — PDKJ offers sampling and welding solution recommendations based on your actual application.
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