In laser cutting, the size of the hole plays a pivotal role in the final product’s integrity. Smaller holes can pose challenges, requiring the fine-tuning of laser parameters. This fine-tuning typically involves reducing the laser power and adjusting the cutting speed to ensure that smaller holes are cleanly and accurately cut. This meticulous control of laser parameters is essential for optimising the cutting process and achieving the desired results.
The following table provides invaluable insights into the recommended minimum hole size for laser cutting, specifically for round holes, depending on the material type and sheet thickness. These hole size recommendations are crucial for achieving precision and quality in laser cutting processes.
Material Thickness |
Mild Steel |
Stainless Steel |
Aluminium |
Galvanised |
Zintec |
Copper |
Brass |
| Min | Min | Min | Min | Min | Min | Min | |
| 1.0mm | 0.50 | 0.50 | 1.00 | 0.50 | 0.50 | 0.49 | 0.80 |
| 1.2mm | 0.75 | 0.75 | 1.25 | 0.75 | 0.75 | 0.49 | 0.80 |
| 1.5mm | 0.75 | 0.75 | 1.25 | 0.75 | 0.75 | 0.60 | 0.80 |
| 2.0mm | 1.00 | 1.00 | 1.50 | 1.00 | 1.00 | 0.80 | 1.00 |
| 2.5mm | 1.00 | 1.00 | 1.75 | 1.25 | 1.75 | 1.00 | 1.25 |
| 3.0mm | 1.00 | 1.00 | 2.00 | 1.50 | 1.75 | 1.25 | 1.50 |
| 4.0mm | 1.00 | 1.00 | 2.50 | 2.00 | — | 2.00 | 2.00 |
| 5.0mm | 1.00 | 1.00 | 3.50 | — | — | 2.20 | 2.50 |
| 6.0mm | 3.00 | 1.00 | 4.00 | — | — | 2.40 | 3.00 |
| 8.0mm | 4.00 | 1.00 | 5.00 | — | — | 3.20 | 4.00 |
| 10.0mm | 5.00 | 1.00 | 7.00 | — | — | 4.00 | 5.00 |
| 12.0mm | 5.00 | 1.00 | 8.00 | — | — | 5.00 | 6.00 |
| 15.0mm | 5.00 | 2.50 | 10.00 | — | — | 6.00 | — |
| 16.0mm | 5.00 | 2.50 | 10.60 | — | — | 6.40 | — |
| 20.0mm | 10.00 | 2.50 | 13.00 | — | — | — | — |
| 25.0mm | 12.00 | 2.00 | 20.00 | — | — | — | — |
| 30.0mm | 17.00 | 5.00 | 20.00 | — | — | — | — |
| 40.0mm | — | 5.00 | — | — | — | — | — |
Thank you for exploring our guide on recommended minimum laser cut hole sizes! If you’re eager to put this knowledge into action or need precision laser cutting services, look no further. Our team of experts is here to assist you with your metal manufacturing needs.
For more information, quotes, or to discuss your specific project requirements, please visit our laser cutting page. There, you’ll find comprehensive details about our cutting-edge laser technology, the materials we work with, and how we can bring your designs to life with unmatched precision.
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