How Thick Can a 1500W Fiber Laser Cut?
In the field of modern industrial processing, laser cutting technology has become the preferred processing method for many manufacturing companies due to its high precision, high speed and good cutting quality. The thickness of the material that the laser cutting machine can cut has always been a key issue of great concern to practitioners and related industry personnel. This article will introduce the actual application effect of the 1500W fiber laser.
How thick can a laser cutting machine cut?
Laser cutting machines are versatile tools that can be used to cut a variety of materials, including metals. The maximum thickness that a laser cutting machine can handle depends on its power and the type of material being cut. Typically, laser cutting machines can cut metal plates with a thickness ranging from a few millimeters to hundreds of millimeters. However, as the thickness of the material increases, the cutting speed decreases, and a higher-powered laser cutting machine may be required to achieve precise cutting.

Cutting Capacity of 1500W Fiber Lasers
The 1500W laser cutting machine is a powerful tool that can cut a variety of materials of different thicknesses. Here are the guidelines for the maximum cutting thickness of a fiber laser cutting machine 1500w:
- Carbon steel: Maximum thickness is 10-16mm. The cutting effect is generally good, but there may be residue on the bottom edge.
- Stainless steel: up to 5-6 mm thick. Cutting thicker stainless steel can be challenging and may require slower cutting speeds and higher power.
- Aluminum: up to 8 mm thick.
Copper: up to 8 mm thick.
Introduction to the welding capabilities of laser welding machines
In the industrial field, laser welding machines are also a very widely used equipment, mainly used for welding different materials. Similar to laser cutting machines, the thickness of materials that laser welding machines can handle also depends on the power of the welding equipment and the type of materials being welded.
Take the 1500W laser welding machine as an example. It can effectively weld materials up to 3 mm thick. In this thickness range, the 1500W laser welding machine can give full play to its advantages and achieve excellent welding results for thinner materials. This is because when welding thinner materials, lower power is enough to quickly melt the surface of the material and achieve good fusion, while better controlling the heat input and reducing the thermal impact on the surrounding materials, thereby ensuring the quality and strength of the welded joint.
When the thickness of the welding material exceeds 3 mm, a higher power laser welding machine may be required to ensure that enough energy can penetrate deep into the material to achieve a strong weld.

Specific situation of laser cutting machine cutting steel plate thickness
When cutting steel plates, the thickness that the laser cutting machine can cut varies depending on the power of the machine.
- 1000W laser cutting machine: can cut carbon steel up to 10 mm thick and stainless steel up to 5-6 mm thick.
- 1500w fiber laser cutting machine: can cut carbon steel up to 16 mm thick and stainless steel up to 10 mm thick.
- 4000W laser cutting machine: can cut carbon steel up to 20 mm thick and stainless steel up to 20 mm thick, but the cutting quality of stainless steel above 12 mm may not be very good.
General law of laser cutting machine cutting thickness changes with power
The cutting thickness capability of the laser cutting machine varies significantly with the power level and the difference in the material being cut.
- 500W Laser Cutting Machine
The 500W laser cutters are relatively low power and have a limited cutting thickness range.
They can cut carbon steel up to 6mm thick, stainless steel up to 3mm thick, aluminum up to 2mm thick, and copper up to 2mm thick. - 20000W (20kW) Laser Cutting Machine
The 20000W (20kW) laser cutters are high power devices with strong cutting capabilities suitable for cutting metal sheets up to 60mm thick. The high power allows it to deliver a large amount of energy in a short period of time, enough to melt and vaporize thicker metal materials.

In summary, the laser cutting machine 1500w is a versatile and powerful tool that can efficiently cut a wide range of materials. For carbon steel, it can handle thicknesses up to 10-16mm, while for stainless steel, it can cut up to 5-6mm thick. Actual cutting performance may vary depending on the specific device configuration, material type, and cutting parameters.