Potência do laser: 4000W
Penetração máxima: 7.5mm
Espessura de soldagem: 12mm (Carbon steel/Angle steel)
Weld Width: 1.5-8.0mm (Triple-wire stacking)
The laser welder for 12mm carbon steel falls under the category of industrial-grade medium-to-heavy plate welding. Compared to welding thin plates under 3mm, the difficulty increases exponentially. The challenges involved include the following:
The real challenge in Laser welder for 12mm carbon steel lies in how to ensure full penetration while simultaneously controlling distortion and reducing the costs associated with groove preparation and gas consumables.
Traditional air laser welding is mostly limited to thin plates and feels powerless when facing heavy workpieces. The Kempson KPS-ALW4000 is an industrial deep penetration laser welder(See also: Máquina de soldagem a laser de ar de 4000 W). That uses 4000W of powerful energy combined with unique deep molten pool technology to overcome the technical challenges of a laser welder for 12mm carbon steel. It can not only weld through but also complete single-sided welding with natural double-sided forming effects, ensuring the connection strength of thick plates remains extremely stable.

| Item principal | Especificações técnicas | Observações |
| Modelo Produto | KPS-ALW4000 | 4000W Thick Plate Special Model |
| Poder do laser | 4000 Watts | Kempson Customized Chip / USA GW Laser |
| Carbon/Angle Steel Thickness | 12mm | South Korea imported vortex separation |
| Espessura do Aço Inoxidável | 11mm | Bright weld bead, secondary wall backup |
| Magnesium Alloy Thickness | 10.5mm | Supporting self-generated gas, aluminum welding doesn’t blacken |
| Penetração Máxima | 7.5mm | Industrial deep penetration, strength far exceeds traditional welds |
| Weld Width Range | 1.5mm - 8.0mm | Supports wide weld gap filling and stacking |
| Modo de alimentação de arame | Motor four-drive automatic feeding | Supports free switching of single, double, and triple wires |
| Modified Wire Diameter | Φ0.8 / 1.0 / 1.2 / 1.6 / 2.0 | Compatible with various wire specifications |
| Tipo de gás de proteção | 99.99% Nitrogen-enriched mixture | Self-produced gas, zero consumption of external cylinders |
| Gas Generation System | South Korean imported vortex separation | High-precision filtration, gas source purification |
| Sistema de controle | Schneider francês | Phosphate protection, stable current discharge |
| Método de refrigeração | S&A Customized 18000W Chiller | Full copper tube spindle, supports 24-hour continuous work |
| Consumo total de energia | ≤ 3.5kW | High photoelectric conversion rate, energy saving |
| Tensão de Trabalho | 380V | Classe industrial |
| Comprimento da fibra | Padrão 10 metros | Meets outdoor and large workpiece distance welding |
| Peso / Tamanho | ≈585kg / 1.2 * 1.3 * 1.3m | Limit thickness, single-side welding, double-side forming |
The Kempson KPS-ALW4000 thick plate air laser welder is designed for heavy industries with demanding environments, thick plates, and high-strength requirements. Key industrial application scenarios include:

Heavy Engineering Machinery Parts: Boom brackets, support ribs, large arm connectors.

Mining Equipment and Components: Vibrating screen dust removal, crusher shells, pipeline supports.

Steel Structure Workshops and Buildings: Corbel gussets, embedded parts, I-beam connection plates.

Special Container Operations and Box Welding: Body brackets, chassis crossbeams, container corner fittings.

Heavy Truck Architecture and Agricultural Equipment: Truck longitudinal beam reinforcement plates, agricultural hitch devices, trailer axles.

Power and Energy Facilities: Thick plate brackets for power cabinets, energy pipeline supports.
The KPS-ALW4000 is a “thick plate welding artifact.” Its self-produced high-purity shielding gas solves the logistics problem of “difficult cylinder transport” in remote factories. With 4000W of power, it locks in the 12mm carbon steel golden thickness range, making it the best choice to replace traditional low-efficiency welding solutions.






Kempson specializes in the research, development, manufacturing, sales, and service of laser welding equipment.We remain at the forefront of thick-plate laser welding technology. With an in-house R&D team and extensive industry experience, the company holds over 30 patents and certifications, including ISO 9001, CE, and FDA certifications, and we provide high-performance laser welding equipment. This 4000W air-cooled laser welder, equipped with an independent gas generation unit and backed by a three-year warranty, effectively addresses cost and efficiency challenges in thick-plate welding.


Yes. The KPS-ALW4000 is specifically developed for thick plates. Through 4000W high-power laser and 8mm wide weld technology, it easily achieves deep penetration welding for 12mm carbon steel, reaching industrial standards for single-side welding and double-side forming.
Yes. The built-in precision gas generator uses a South Korean imported multi-layer filtration system to produce 99.99% pure shielding gas in real-time. Stainless steel does not blacken, aluminum remains bright, and the strength is identical to bottled gas.
In the Chinese market, based on 1-2 cylinders per day, gas costs alone save about 30,000 RMB annually. Additionally, since there is no spatter and no secondary processing, labor and grinding disc costs are significantly reduced.
We use a self-developed stepping four-drive wire feeder, which is more stable than the two-wheel drives used by competitors. It supports single/double/triple wire switching and includes automatic straightening to prevent jamming.
Absolutely. It uses a customized 18000W high-power chiller for 24-hour continuous operation. For cold regions, we provide free antifreeze; for high-heat environments, the thickened steel and hollowed air ducts ensure cooling without worry.
We provide an industry-leading three-year warranty on the entire machine. As a source factory, Kempson holds CE and FDA certifications, and our global service network ensures rapid response for all technical and spare part needs.
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