How to Choose a Handheld Laser Welding Machine?

Choosing the right handheld laser welding machine for your business can be a challenge. With different power capacities, cooling systems, and material compatibility options, it’s crucial to make an informed decision. Let’s explore the factors you need to consider.

When selecting a handheld laser welding machine, prioritize key factors like power capacity, cooling system, and material compatibility. Whether you need a 1500W air-cooled model or a higher power option for heavy-duty tasks, the right choice will make your work easier and more efficient.

To make the right choice, it's important to understand the specifications of different models and how they align with your business needs. Let’s break down the factors to consider when choosing a laser welding machine.

Using handheld laser welding gun
Choosing a handheld laser welding machine

How to choose a laser welding machine?

When it comes to selecting the right laser welding machine, several factors should guide your decision. The machine’s power, cooling system, and material compatibility are key elements that can make or break the success of your welding operations.

Choosing the best laser welding machine involves understanding your material requirements, production volume, and cooling needs. Whether you need a fiber laser for high precision or a more robust machine for heavy-duty welding, there’s a perfect solution out there.

When selecting a laser welding machine, the most significant considerations include the laser power, cooling system, and the material you intend to work with. Let’s break these down further:

1. Power Capacity

The power of a laser welding machine1 determines the speed and depth of the weld. The higher the power, the more capable the machine is at welding thicker materials. For general-purpose applications, a 1500W machine is sufficient, but for heavy-duty welding or thicker materials, you may need models with power ratings of 2000W or even 3000W. Here's a comparison:

Power (W) Typical Use Case Suitable Materials Maximum Thickness (mm)
1500W General welding tasks Stainless steel, aluminum 6-8 mm
2000W Heavy-duty welding tasks Steel, titanium 10-12 mm
3000W High-speed and thick material welding High-strength steel, aluminum 12-15 mm

Higher power machines offer increased welding speed and depth, which is crucial for applications like automotive repair or industrial fabrication. However, they come with increased costs, so it’s essential to balance the power requirement with your specific needs.

2. Cooling System for laser welding

Cooling systems are necessary to ensure that the machine remains at optimal temperatures during operation. Air-cooled systems are less expensive and suitable for low-to-medium duty tasks. Water-cooled systems, on the other hand, are better for high-power, continuous operations.

  • Air-cooled systems: Lower cost, but may require more frequent maintenance. Best for light-to-medium welding tasks.
  • Water-cooled systems: More expensive, but necessary for machines with higher power output or continuous, heavy-duty work.

Choosing the right cooling system2 will depend on the expected usage. A water-cooled system is essential for high-power machines used in industries such as automotive repair, where continuous and consistent operation is key.

3. Material Compatibility

Different lasers are suited to different materials. Fiber lasers are ideal for metals such as stainless steel, aluminum, and titanium. On the other hand, CO2 lasers are better suited for non-metallic materials such as plastics and ceramics. It's important to choose a laser welding machine that is compatible with the materials you intend to work with.

Material Best Laser Type Common Applications
Stainless steel Fiber laser Automotive, aerospace, manufacturing
Aluminum Fiber laser Aircraft, food packaging, manufacturing
Titanium Fiber laser Medical, aerospace, industrial tools
Plastics & Ceramics CO2 laser Electronics, packaging, signage

By ensuring that the laser machine can handle your material, you’ll minimize issues like poor weld quality or inefficiencies.

Welding worker in action with sparks
How to choose a laser welding machine

How thick steel can a laser welder weld?

When using a laser welder, one of the most important questions is how thick a material it can handle. Understanding the thickness capabilities of your laser welder can help you avoid limitations in your production process.

Laser welders can generally handle steel up to a certain thickness. For most fiber laser welders, a 1500W model can weld steel up to 6mm, while higher power machines, such as 2000W or 3000W, can weld thicker materials up to 12mm or even more.

Laser welders are highly versatile, but their ability to weld thick steel depends heavily on the machine’s power. A 1500W fiber laser welding machine3 can typically weld steel up to 6mm thick with excellent results. If you need to weld thicker materials4, a higher power machine—such as a 2000W or 3000W unit—can weld up to 12mm of steel or more. For extremely thick materials, some advanced models with even higher power may be required, especially for industries like heavy manufacturing or automotive repairs.

Power vs. Thickness Chart

Power (W) Typical Maximum Thickness of Steel (mm)
1500W 6-8 mm
2000W 10-12 mm
3000W 12-15 mm
4000W+ 15-20 mm

It’s important to note that the speed of welding may also decrease as the thickness of the material increases. Laser welders can perform high-precision, clean welds even on thicker materials, but slower speeds may result in longer cycle times. This trade-off is something you should keep in mind if you're planning to work with thick steel regularly.

Also, while power plays a significant role in determining the maximum welding thickness, other factors such as the laser spot size5, beam quality, and the type of material also affect the welding outcome. The ability of the laser to penetrate and bond the material cleanly is influenced by all these elements.

1.5kw Fiber Laser Welding Kitchenware
Laser welder steel thickness capabilities

What are the downsides of laser welding?

While laser welding has many advantages, it also comes with a few drawbacks. Understanding these potential downsides will help you make an informed decision when choosing the right welding technology for your business.

Laser welding offers high precision, speed, and efficiency, but it may come with some challenges, such as high initial costs, the need for a stable environment, and limited capability on certain materials. Let’s explore these downsides further.

While laser welding offers many benefits, it’s not without its challenges. One of the primary drawbacks is the high initial cost6. Fiber laser machines can be expensive, particularly models with higher power. However, this can be offset over time by the reduction in operating costs, increased production speed, and superior weld quality.

Another potential downside is the environmental sensitivity7 of laser welding machines. These machines require a stable environment for optimal performance. Factors such as humidity, dust, and temperature fluctuations can affect the machine’s ability to function effectively, leading to inconsistent results. To mitigate this, investing in an air filtration system or controlling the workspace’s climate is essential.

Laser welding also has material limitations8. While fiber lasers are excellent for welding metals like stainless steel, aluminum, and titanium, they may not work as well with certain reflective or non-metallic materials. Special coatings or modifications may be needed to weld reflective materials like copper or brass, which can add to the cost.

Summary of Downsides

Challenge Impact Solution
High Initial Cost Expensive upfront investment Long-term savings, reduced operating costs
Environmental Sensitivity Affects performance in unstable environments Controlled workspace or air filtration systems
Material Limitations May not work with certain materials Specialized coatings or modifications for specific materials

Handheld Fiber Laser Welding Machine In Welding Frame
Downsides of laser welding

Which company is good for welding machines?

Choosing a reliable company for your laser welding machine needs is just as important as choosing the right machine. With so many options available, how do you know which one to trust?

When it comes to selecting a welding machine supplier, it’s essential to choose a company with a proven track record of reliability, quality, and customer service. Kirin Laser stands out for its high-quality products, strong technical support, and commitment to customer satisfaction.

Kirin Laser is a trusted name in the laser welding industry9. With years of experience and a solid reputation, Kirin Laser offers high-quality welding machines that cater to a wide range of applications. Whether you need a handheld laser welder10 for small-scale operations or a high-powered machine for large-scale industrial applications, Kirin Laser provides reliable, cost-effective solutions.

What sets Kirin Laser apart is its commitment to customer satisfaction. Not only do they offer a wide range of products, including laser cleaning machines, welding machines, and marking machines, but they also provide excellent after-sales support11 and customization options. Their team of experts is always available to offer advice, troubleshooting, and technical support, ensuring your operations run smoothly.

Additionally, Kirin Laser focuses on providing machines that are easy to use and maintain. With their user-friendly interface and robust design, you can rely on Kirin Laser machines to perform under various conditions, making them a great choice for businesses looking for quality and efficiency.

4-in-1 Air-cooling Laser Welding Machine
Best welding machine companies

Conclusion

In conclusion, selecting the right handheld laser welding machine12 requires careful consideration of factors such as power capacity, cooling systems, material compatibility, and environmental stability. Kirin Laser provides top-notch laser welding machines that offer great performance, precision, and long-term reliability. By choosing the right machine from a trusted company like Kirin Laser, you can significantly enhance your welding operations and achieve better results.


  1. Explore this link to find top-rated laser welding machines that suit various applications and budgets. 

  2. Understanding cooling systems is crucial for optimal machine performance; this resource will help you choose the right one. 

  3. Explore this link to understand the capabilities and limitations of a 1500W fiber laser welding machine for your projects. 

  4. Discover techniques and tips for effectively welding thicker materials using advanced laser welding technology. 

  5. Learn about the importance of laser spot size in achieving high-quality welds and optimizing your welding process. 

  6. Understanding the challenges of high initial costs can help you make informed decisions about laser welding investments. 

  7. Exploring environmental sensitivity can help you optimize your laser welding setup for better results. 

  8. Learning about material limitations can guide you in selecting the right materials for effective laser welding. 

  9. Explore this link to stay updated on innovations and trends that can enhance your understanding of the laser welding market. 

  10. Discover the advantages of handheld laser welders and how they can improve efficiency in small-scale operations. 

  11. Learn about the significance of after-sales support and how it can impact your business operations and customer satisfaction. 

  12. Know all things about laser welding machine, choosing your best solution and getting the best price from Kirin Laser. 

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Mark at Kirin Laser

Hey! I’m the author of this post. With over 16 years in the laser machinery field, we’ve supported businesses in 28 countries, partnering with 280+ clients to deliver bespoke laser solutions.  Contact us for a free quote and discover how our tailor-made, cost-effective solutions can elevate your business. 

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