Water cooling heavy duty laser welding machine resolves issues inherent in traditional laser welding for thick plates, such as insufficient penetration depth and poor stability during continuous operation, thereby achieving high-quality weld results.
This machine incorporates a custom GW anti-high-reflectivity chip laser and French Schneider electrical control system, featuring multiple isolation protections to effectively reduce equipment damage and extend service life. Its turbine-worm gear four-wheel-drive stepper wire feeding assembly supports seamless switching between single-wire, dual-wire, and triple-wire welding modes. It has precise and stable wire feeding with automatic straightening, provide smooth, efficient, and high-quality welding.
Take a closer look at our water cooling heavy duty laser welding machine from multiple angles to understand its overall structure, water-cooling system layout, handheld welding torch and internal electronic control components.
The Kempson dedicated water-cooled heavy-duty laser welding machine centres on an intelligent laser welding system. Utilising high-energy lasers and precision control technology, it achieves efficient and stable welding of thick plate materials, meeting the demands of high-power, prolonged continuous operation.
The equipment employs a high-performance laser to generate a high-energy beam, with an intelligent control system precisely regulating laser power, frequency, and welding parameters. The laser is transmitted via fibre optic cable to the welding torch. During welding, the highly concentrated laser energy instantly melts the base material and filler wire, forming a dense, robust weld seam under inert gas protection. This effectively minimises welding distortion and oxidation risks.
The device incorporates an efficient water-cooled heat dissipation system featuring a closed-loop circulation circuit. Coolant flows within this sealed circuit, absorbing heat from the laser core before undergoing heat exchange via a water chiller. A powerful fan expels the heat, allowing the cooled liquid to recirculate for repeated operation.
The Kempson Black Gold laser welding gun, developed in-house, features reusable protective lenses alongside dedicated anti-spatter nozzles and barrels. Equipped with a dual-protection mechanism incorporating high-temperature alarms, reduces the frequency of consumable replacements and costs.
In contrast, competing products employ low-cost welding gun solutions where protective lenses wear easily and have a short lifespan, necessitating frequent replacements.
The device measures 0.7×1.1×1.3 metres, integrating a high-power laser with an efficient water-cooling system. Requiring no additional equipment, it occupies minimal floor space, facilitating workshop layout and mobile deployment. It is well-suited for continuous production environments involving thick-plate heavy-duty welding. Check out the dimension diagram below for a detailed view of its size and layout.
| Model | KPS-XLHW3000 | KPS-XLHW4000 |
|---|---|---|
| Laser Power | 3000W | 4000W |
| Fillet Weld Thickness (Stainless Steel) | 9 mm | 11 mm |
| Fillet Weld Thickness (Carbon Steel) | 10 mm | 12 mm |
| Fillet Weld Thickness (Aluminum Alloy) | 8.5 mm | 10.5 mm |
| Welding Wire Diameter | Φ0.8–2.0 mm | Φ0.8–2.0 mm |
| Wire Feeding Mode | Automatic wire feeding (single / dual wire switching) | Automatic wire feeding (single / dual wire switching) |
| Total Power Consumption | ≤ 3 kW | ≤ 3.5 kW |
| Cooling System | Built-in water cooling | Built-in water cooling |
| Power Supply Requirement | 380V | 380V |
| Machine Dimensions | 0.7 × 1.1 × 1.3 m | 0.7 × 1.1 × 1.3 m |
| Machine Weight | Approx. 235 kg | Approx. 250 kg |
| Weld Bead Width | 8 mm | 8 mm |
This machine is suitable for welding thick plates of carbon steel, stainless steel, and aluminum alloys. It produces flat welds with deep penetration and high strength, meeting the welding requirements for high-standard industrial structural components. It is widely used in heavy machinery manufacturing, marine engineering, mining equipment processing, and other fields. The following images demonstrate different welding types and the machine’s welding results on various equipment.
Aluminum alloy
2–4 mm
Aluminum alloy
2–8 mm
Carbon steel
3–12 mm
Stainless steel
2–10 mm
The 3000/4000W water cooling heavy duty laser welding machine delivers substantial penetration depth, exceptional stability, and 24-hour continuous operation. Widely employed across heavy machinery manufacturing, marine engineering, bridge steel structures, pressure vessel production, mining equipment fabrication, and wind turbine tower welding, it meets high-strength welding demands for diverse thick-walled metal plates. This equipment balances superior weld quality with enhanced production efficiency.
Kempson Laser is a high-tech enterprise specialising in the research, development, and manufacturing of laser welding equipment. We have an in-house R&D team and extensive industry expertise, we have achieved maturity in key areas such as torch structure, wire feeding systems, and water-cooled heat dissipation. Our solutions enable single-pass welding, enhancing welding stability and service life, and are widely applied across heavy machinery, shipbuilding, steel structures, and other manufacturing sectors.
Certified under the ISO9001 Quality Management System, our products comply with international standards including CE. We deliver efficient, reliable laser welding solutions globally, establishing ourselves as a trusted supplier in thick-plate laser welding equipment. Should you require assistance, our specialist team stands ready to provide bespoke welding solutions and technical support.
The 3000W model is suitable for medium-thick plates or intermittent production, whilst the 4000W is ideal for 10–12mm thick plates and extended continuous welding. Should high efficiency and weld strength be prioritised, Kempson recommends opting for the 4000W.
No. This equipment delivers deep penetration and wide weld bead capability, enabling single-pass welding of 12mm plates. This significantly reduces multi-pass welding and post-weld grinding operations, lowering overall costs.
Maintenance requirements are minimal, involving only periodic checks of the coolant and filtration system. Overall maintenance costs are substantially lower than traditional high-power welding equipment.
Faster welding speeds, reduced heat-affected zones, aesthetically superior welds with enhanced strength, alongside substantial savings in labour and post-processing costs.
Yes. Kempson provides bespoke solutions tailored to diverse industry requirements and operational conditions, including customisable power settings, wire feeding modes, and system configurations.
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