Can a CNC Laser Cut Metal?

In manufacturing, laser cutting is a precise and efficient way to shape materials. Many people ask if a CNC laser can cut metal. The answer is yes. This article explains how CNC laser cutters do this, the types of machines used, and their benefits.

How CNC Laser Cutting Machines Work

CNC laser cutting machines use a focused laser beam to melt, burn, or vaporize materials. Computer software controls this process to ensure accuracy. The laser beam focuses high intensity onto the material, causing it to melt or evaporate. This creates a precise cut. The laser’s movement follows the desired path.

Types of CNC Laser Cutters for Metal

There are different types of CNC laser cutters for metal. Each has unique features and benefits.

  1. Fiber CNC Laser Cutters:
    • Source and Wavelength: These cutters use a solid-state laser source with a wavelength of around 1.064 micrometers.
    • Efficiency and Speed: They are highly efficient, with electrical efficiencies of about 25-30%. They are known for fast cutting speeds, especially with thin to medium-thickness metals.
    • Beam Quality: Fiber laser cutters offer superior beam quality. Consequently, they produce finer and more precise cuts.
    • Maintenance: They generally require less maintenance due to fewer moving parts and solid-state technology.
  2. CO2 CNC Laser Cutters:
    • Source and Wavelength: CO2 cutters generate laser beams by running an electrical current through a gas mixture, primarily CO2, with a wavelength of 10.6 micrometers.
    • Versatility: CO2 laser cutters excel in cutting non-metal materials such as wood, acrylic, and textiles, in addition to metals.
    • Efficiency and Maintenance: They are less efficient than fiber laser cutters, with electrical efficiencies around 10-15%. They also require more maintenance, like mirror alignments and gas refills.

Benefits of CNC Laser Cutting Machines for Metals

  1. Precision and Accuracy: CNC laser cutting machines offer unmatched precision. They can achieve intricate designs and tight tolerances that are difficult with other methods.
  2. Speed and Efficiency: The high cutting speeds of CNC laser cutters, especially fiber lasers, significantly reduce production times. Therefore, they are ideal for large-scale manufacturing.
  3. Quality of Cuts: The high-quality beam of fiber laser cutters results in smooth and clean edges. This reduces the need for post-processing.
  4. Material Versatility: CNC laser cutting machines can cut a wide range of metals, including steel, stainless steel, aluminum, brass, and copper. This versatility makes them suitable for various industries, from automotive to aerospace.
  5. Reduced Waste: The precision of CNC laser cutting minimizes material waste. Thus, this makes the process more cost-effective and environmentally friendly.


In conclusion, CNC laser cutters can cut metal with high precision, speed, and efficiency. They are unmatched by traditional methods. The choice of laser—whether fiber or CO2—depends on specific needs, including material type, thickness, and desired speed. As technology advances, CNC laser cutters continue to evolve. They offer greater capabilities and expand the possibilities of metal fabrication.

Jinan FORSUN CNC Machinery Co., Ltd. (Shandong FORSUN CNC Machinery Co., Ltd.) is a professional manufacturer and supplier of Wood CNC Routers in China. For 20 years, we have provided high-quality CNC Router Machines and solutions for global customers. Our main CNC machine types include Wood CNC Routers, 3D CNC carving machines, Wood CNC machines, ATC CNC routers, basic beginner CNC routers, mini CNC routers, CNC nesting machines, multi-tool CNC machines, rotary axis CNC carving machines, 4/5 axis CNC routers, CNC marble stone engraving machines, CNC plasma cutters, CNC foam cutting machines, CO2 laser cutting machines, fiber laser cutting machines, handheld fiber laser welding machines, and edge banding machines.

Forsun CNC Routers help you stay productive. We have the right CNC Router Machine tools for your application and support you every step of the way. Moreover, our products have a wide range, good quality, reasonable prices, and stylish designs. They are widely used in cutting, marking, welding, and other industries.

Choose FORSUN CNC to experience efficient, precise, and reliable CNC solutions. Let us help elevate your business. Contact us for more information and to place your order.

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