Analysis of the Maximum Cutting Thickness of Laser Cutting Machines

Time:2025-12-29

The maximum cutting thickness of a laser cutting machine is not a fixed value, but rather a dynamic technical boundary determined by the equipment power, material type, cutting quality requirements, and gas process. Understanding this concept is crucial for scientific equipment selection.


I. Analysis of Core Influencing Factors

Laser Power (Decisive Factor): Generally, the higher the power, the greater the thickness that can be cut. For example:

1. Medium-to-low power (1000-3000W):  Suitable for cutting thin to medium-thick plates of carbon steel (≤15mm), stainless steel (≤10mm), and aluminum alloys (≤8mm), balancing efficiency and cost.

2. High power (6000W and above): Can cut thicker materials (such as carbon steel up to 25mm or more), and significantly improve the cutting speed and cross-section quality of medium-thick plates.

3. Material Properties: Different materials have significantly different laser absorption rates and thermal conductivity. At the same power, the cutting thickness of carbon steel is usually greater than that of stainless steel, while cutting highly reflective aluminum and copper alloys is more difficult and has a lower thickness limit.

4. Process and Gas: Using oxygen to cut carbon steel utilizes an exothermic reaction to increase cutting capacity, while cutting stainless steel or aluminum requires nitrogen, which will correspondingly reduce the maximum thickness. High-quality beams and optimized processes can improve cutting stability at the maximum thickness limit.

Analysis of the Maximum Cutting Thickness of Laser Cutting Machines

II. Practical Definition of "Maximum Thickness"

It should be noted that the "maximum cutting thickness" specified by the equipment usually refers to the limit that can be penetrated by sacrificing some cutting speed and cross-section perpendicularity. For thicknesses requiring stable mass production, it is recommended to use 60%-70% of the equipment's rated power as a reference for efficient and economical processing thickness.


III. Scientific Selection Suggestions: Verification is Better than Parameters

When facing thick plate processing needs, simply comparing parameter manuals is far from enough. We strongly recommend:

1. Clarify Core Needs: Determine the types of materials you most frequently cut, the thickness range, and your specific requirements for cross-section perpendicularity, dross amount, and speed.

2. Request Process Cutting Tests: This is the gold standard for evaluating the true capabilities of the equipment. You should provide your actual material samples to the supplier for cutting tests.


Taking RITMAN Laser, a well-known domestic brand, as an example, its product line covers a variety of laser cutting machines ranging from kilowatt to ten-kilowatt levels. During the selection process, their technical engineers not only provide power recommendations but also conduct free test cuts for customers based on their extensive process database.  They then provide a comprehensive evaluation report including speed, quality, and gas consumption, helping customers find the most cost-effective and suitable equipment solution for their production needs, truly overcoming the dilemma of choosing based solely on "maximum cutting thickness."

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