As a Distributor of CO2 laser cutting machines with output power from 2.2 to 6 kW and true fiber laser machines ranging from 2 to 4 kW, the question often asked about the benefits of each type of machine and which is better for specific applications. As there is often some confusion in the marketplace, Integrated Technology Inc outlines below the pros and cons of the two technologies.
Opened Type Fiber Laser Welding Machine
Briefly, fiber laser light is created by banks of diodes. The light is channeled and amplified through fiber optic cable similar to that used for data transfer. The amplified light, on exiting the fiber cable, is collimated or straightened and then focused by a lens onto the material to be cut. Creation of the light is 200% more efficient than via a traditional CO2 laser, and delivery is far simpler, with no expensive optical mirrors. The focusing lens, unlike on a conventional CO2 laser machine, is sealed in the cutting head and thus not a consumable item. If one examines the price-to-performance ratio of the different models, the main cutting speed benefit of the higher-power 4 kW laser is in mid-range materials from 6 to 8 mm thick. There are also small benefits in thickness capacity when cutting non-ferrous materials, typically an increase of one gauge of material. This helps only customers who cut a lot of material in the 6 to 8 mm range or who wish to cover all eventualities, as it is their only laser cutting machine.
CO2 Laser Engraving and Cutting Machine
The disadvantages of fiber compared with CO2 mainly relate to the cutting speed when processing thicker materials, typically above 5 mm, where the CO2 machine is faster in a straight line and also has much faster piercing times at the start of the cut. There is also the advantage of a smoother surface finish with the CO2 machine when cutting thicker materials.