4" Laser Head

1 min read·Updated Jul 2026
Quick
answer

Overview of the 4" laser head for Thunder Laser machines, explaining its advantages over the standard head when cutting thicker materials.

Applies toAll machinesTopicGeneral

The 4" laser head is the laser head of the laser cutting machine that has a 4" focus lens installed. The standard laser head is mainly used to cut material less than 10mm. But if you want to cut thicker material, such as 17mm foam, the cutting edge would be bent after cutting with the standard head. This is because of the focus lens characteristic. But don't worry, our 4" laser head can help to solve the problem — the 4" laser head will produce a more vertical laser beam, which will make the cutting edge more straight and neat. Thus the 4" laser head is more suitable for cutting thicker material.

4 inch laser head diagram
Photo of 4 inch laser head
Photo of 4" laser head
Cutting result comparison between 4 inch laser head and standard laser head
Cutting result by 4" laser head and standard laser head
Laser beam and laser dot comparison

Laser Beam and Laser Dot Comparison of 4" and Standard Laser Head

Laser beam and dot comparison diagram
Cutting 20mm acrylic sample
Cutting 20mm acrylic sample
Cutting 18mm hard wood samples
Cutting 18mm hard wood samples

Still stuck?

No bots, no runaround. Talk to a U.S.-based laser tech who knows your machine inside out.