3-5 mm

The thickness of iron materials welded by a 1500W handheld laser welder is usually in the range of ‌3-5 mm‌, depending on the operating parameters and equipment configuration.

Key influencing factors

‌Power and material matching‌:

According to the search results, the general welding thickness of steel (such as stainless steel and carbon steel) for 1500W laser welders is about 3 mm, which is the stable welding capacity under normal conditions. However, by reducing the welding speed or optimizing the wire feeding system, the limit thickness of 5 mm may be reached (for example, the search results mentioned that 1500W can weld 0.5-5mm, but the upper limit needs to be judged in combination with other data).

‌Influence of operating technology‌:

Factors such as welding speed, wire feeding method (single wire feeding or double wire feeding), and gas protection system will significantly affect the actual welding thickness. For example, reducing the welding speed can increase the penetration depth, but may sacrifice efficiency.

‌Equipment differences and process optimization‌:

Equipment from different brands may have technical differences (such as wire feeding system, gas filtration accuracy), and some high-end configurations may break through the conventional thickness limit. For example, the search results mention that a 4000W device can weld a 12mm steel plate, but this has no direct correlation with 1500W, it only shows that power is positively correlated with thickness.