What is the maximum thickness laser can cut?


With the rapid development of fiber laser cutting technology and the gradual intensification of competition, more and more high-power CNC fiber laser cutters have been developed. The available laser power can reach 30000w or higher, and it is possible to cut sheets with a thickness of 1 mm or even 100 mm thick. In this post, we will walk through the maximum thickness that the most often used fiber cutting laser machine with different laser wattage can cut.
 

1. 4kw Laser Cutting Machine Cutting Thickness and Speed Chart

 
4000 Watt Cutting Parameters Sheet
Material Thickness(mm) Reference to the effective cutting speed(m/min)
Stainless Steel Nitrogen Gas Aluminum Material Nitrogen Gas Yellow Copper Nitrogen Gas Carbon Steel OxygenGas Nitrogen Gas
1.0 40.0-70.0 35.0-50.0 30.0-40.0 8.0-10.0/40.0-65.0
2.0 20.0-40.0 15.0-25.0 12.0-20.0 5.0-7.0/18.0-30.0
3.0 15.0-25.0 9.0-16.0 8.0-15.0 3.5-4.2/11.0-17.0
4.0 7.0-8.0 5.0-7.0 4.0-6.0 3.2-3.8/7.0-9.0
5.0 5.5-6.5 4.0-5.0 2.5-4.0 2.6-3.6
6.0 3.0-4.0 2.5-3.5 1.0-1.8 2.5-3.0
8.0 1.5-2.5 1.5-2.0 0.4-0.6 2.0-2.6
10.0 0.8-1.2 0.5-1.0 0.1-0.3② 1.8-2.1
12.0 0.3-0.5① 0.3-0.5   1.0-1.2
16.0 0.2-0.4② 0.2-0.4②   0.75-0.85
20.0       0.6-0.7
22.0       0.5-0.6②


The maximum cutting thickness of different materials for 4kw laser cutting machine: stainless steel maximum thickness 16mm; aluminum material maximum thickness 16mm; yellow copper maximum thickness 10mm; carbon steel maximum thickness 20mm.

For stainless steel, the cutting speed of the 4kw fiber laser cutting machine ranges from 0.2m/min to 70m/min. For aluminum, the cutting speed ranges from 0.2m/min to 50m/min.  For yellow copper, the cutting speed ranges from 0.1m/min to 40m/min. For carbon steel, the cutting speed ranges from 0.6m/min to 65m/min.

HF-A metal cutting laser machine

HF-A Fiber Laser Cutting Machine 
 
 Compared with the CO2 laser cutting machine, this fiber laser has a shorter wavelength, so it has better absorption characteristics, and the focused beam of the laser cutting machine has a higher power density at the focal point.
 The fiber laser cutting machine uses nitrogen as auxiliary gas, which can speed up the melting and expelling of materials, thereby increasing the feeding speed.
 
Samples:
HF A metal sheet laser cutting machine CUTTING SAMPLES


 

2. 6kw Fiber Laser Cutting Machine Cutting Thickness and Speed Chart

 
6000 Watt Cutting Parameters Sheet
Material Thickness(mm) Reference to the effective cutting speed(m/min)
Stainless Steel Nitrogen Gas Aluminum Material Nitrogen Gas Yellow Copper Nitrogen Gas Carbon Steel OxygenGas Nitrogen Gas
1.0 35.0-55.0 35.0-45.0 35.0-45.0 8.0-12.0/40.0-55.0
2.0 20.0-30.0 20.0-25.0 20.0-25.0 5.0-7.0/25.0-35.0
3.0 12.0-20.0 8.0-18.0 10.0-15.0 3.5-5.0/15.0-20.0
4.0 9.0-14.0 9.0-12.0 8.0-10.0 3.2-4.5/10.0-15.0
5.0 6.0-10.0 5.0-8.0 4.5-6.0 3.0-3.8/7.0-9.0
6.0 4.0-8.0 4.0-6.0 3.0-4.0 2.6-3.2/5.0-6.0
8.0 3.0-4.0 2.0-3.0 1.6-2.2 2.0-2.5
10.0 1.6-2.2 1.0-1.9 0.8-1.2 1.6-2.1
12.0 1.2-1.5 0.8-1.4 0.5-0.7 1.0-1.4/1.6-2.0
16.0 0.5-0.75① 0.5-0.7①   0.7-0.85/1.2-1.6
20.0 0.4-0.6② 0.3-0.5②   0.5-0.75
22.0       0.5-0.65
25.0 0.2-0.3② 0.1-0.2②   0.4-0.6①


The maximum cutting thickness of different materials for 6kw fiber laser cutting machine: stainless steel maximum thickness 25mm; aluminum material maximum thickness 25mm; yellow copper maximum thickness 12mm; carbon steel maximum thickness 25mm.

For stainless steel, the cutting speed of the 6000w fiber laser cutting machine ranges from 0.2m/min to 55m/min. For aluminum, the cutting speed ranges from 0.1m/min to 45m/min.  For yellow copper, the cutting speed ranges from 0.5m/min to 45m/min. For carbon steel, the cutting speed ranges from 0.4m/min to 55m/min.

 

3. 8kw Fiber Laser Cutting Machine Cutting Thickness Chart

 
8000 Watt Cutting Parameters Sheet
Material Thickness(mm) Reference to the effective cutting speed(m/min)
Stainless Steel Nitrogen Gas Aluminum Material Nitrogen Gas Carbon Steel OxygenGas 
1.0 35.0-55.0 35.0-50.0 8.0-10.0
2.0 25.0-35.0 25.0-35.0 5.0-6.0
3.0 18.0-22.0 18.0-22.0 4.2-4..5
4.0 12.0-16.0 12.0-16.0 3.5-3.7
5.0 7.0-9.0 7.0-9.0 3.2-3.5
6.0 5.0-7.0 4.0-6.0 2.6-3.2
8.0 4.0-5.0 3.0-4.0 2.3-2.8
10.0 2.5-3.5 2.0-3.0 2.2-2.5
12.0 2.0-2.5 1.5-2.0 1.8-2.1
16.0 1.0-1.4 0.8-1.2 1.2-1.4
20.0 0.7-0.9① 0.6-0.8① 1.0-1.2
22.0     0.6-0.8①
25.0 0.4-0.6② 0.3-0.5② 0.4-0.6①
30.0 0.2-0.4②   0.2-0.5②

The maximum cutting thickness of different materials for 8kw fiber laser cutting machine: stainless steel maximum thickness 30mm; aluminum material maximum thickness 25mm; carbon steel maximum thickness 30mm.

For stainless steel, the cutting speed of the 8000w fiber laser cutting machine ranges from 0.2m/min to 55m/min. For aluminum, the cutting speed ranges from 0.3m/min to 50m/min.  For carbon steel, the cutting speed ranges from 0.2m/min to 10m/min.

 
hf b laser metal cutting machine for sale


HF-A Fiber Laser Cutting Machine 

Samples:
Applicable Materials: Specially used for cutting 0.5~30MM stainless steel, 0.5~30MM carbon steel, 0.5~25MM aluminum, 0.5~16MM copper, as well as galvanized steel, electrolytic steel and silicon steel etc.

HF-B series fiber laser cutter samples

4. 10kw Fiber Laser Cutting Machine Cutting Thickness and Speed Chart

 
10000 Watt Cutting Parameters Sheet
Material Thickness(mm) Reference to the effective cutting speed(m/min)
Stainless Steel Nitrogen Gas Aluminum Material Nitrogen Gas Carbon Steel OxygenGas 
1.0 40.0-50.0 40.0-50.0 8.0-10.0
2.0 30.0-35.0 30.0-40.0 5.0-6.0
3.0 25.0-30.0 25.0-30.0 4.2-4..5
4.0 16.0-20.0 16.0-20.0 3.5-3.7
5.0 12.0-16.0 12.0-16.0 3.2-3.5
6.0 10.0-12.0 10.0-12.0 2.6-3.2
8.0 8.0-10.0 8.0-10.0 2.3-2.8
10.0 4.5-5.5 3.0-4.0 2.2-2.5
12.0 2.5-3.5 2.0-2.5 1.8-2.1
16.0 1.5-2.0 1.2-1.5 1.5-1.6
20.0 1.0-1.5 0.8-1.0 1.1-1.3
22.0     0.7-0.9
25.0 0.5-0.7① 0.4-0.6① 0.4-0.6
30.0 0.2-0.4② 0.2-0.4② 0.3-0.5②
35.0 0.1-0.3② 0.1-0.3② 0.2-0.4①
40.0     0.1-0.3②


The maximum cutting thickness of different materials for 10kw fiber laser cutting machine: stainless steel maximum thickness 35mm; aluminum material maximum thickness 35mm; carbon steel maximum thickness 40mm.

For stainless steel, the cutting speed of the 100000w fiber laser cutting machine ranges from 0.1m/min to 50m/min. For aluminum, the cutting speed ranges from 0.1m/min to 50m/min.  For carbon steel, the cutting speed ranges from 0.1m/min to 10m/min.

 

5. 12kw Fiber Laser Cutting Machine Parameter

 
12000 Watt Cutting Parameters Sheet
Material Thickness(mm) Reference to the effective cutting speed(m/min)
Stainless Steel Nitrogen Gas Aluminum Material Nitrogen Gas Carbon Steel OxygenGas 
1.0 40.0-50.0 40.0-50.0 8.0-10.0
2.0 35.0-40.0 35.0-40.0 5.0-6.0
3.0 28.0-32.0 28.0-32.0 4.2-4..5
4.0 18.0-22.0 18.0-22.0 3.5-3.7
5.0 14.0-18.0 13.0-17.0 3.2-3.5
6.0 11.0-14.0 11.0-14.0 2.6-3.2
8.0 9.0-11.0 9.0-11.0 2.3-2.8
10.0 5.0-6.0 4.0-5.0 2.2-2.5
12.0 3.0-4.0 2.5-3.0 1.8-2.1
16.0 2.0-3.0 1.6-2.4 1.5-1.8
20.0 1.4-1.8 1.0-2.0 1.3-1.5
22.0     0.7-0.9
25.0 0.8-1.2 0.6-0.8 0.4-0.6
30.0 0.3-0.5 0.2-0.4① 0.3-0.5①
35.0 0.2-0.3 0.2-0.3② 0.2-0.4①
40.0 0.1-0.3② 0.1-0.3② 0.1-0.3①


The maximum cutting thickness of different materials for 12kw fiber laser cutting machine: stainless steel maximum thickness 35mm; aluminum material maximum thickness 35mm; carbon steel maximum thickness 40mm.

For stainless steel, the cutting speed of the 120000w fiber laser cutting machine ranges from 0.1m/min to 50m/min. For aluminum, the cutting speed ranges from 0.1m/min to 50m/min.  For carbon steel, the cutting speed ranges from 0.1m/min to 10m/min.


Reminder:
① If the graphics are simple and do not require high accuracy, then you can cut the plates in batches.
② If you have good operator adjustments and machine conditions, you can get the laser cutting thickness limit of cutting speed and accuracy.


   

Conclusion

To obtain high-precision and high-speed cutting, in addition to the fiber laser machine itself, the operator also needs to adjust the parameters properly, such as laser power, gas pressure, feed rate, the working distance of the nozzle and focus position, etc. Different operations will lead to different cutting results, but it is certain that whether you need to process copper/brass, aluminum, stainless steel and carbon steel of different thicknesses, fiber laser technology from the Hymson fiber laser cutting machine factory must be your economical choice.
 

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