Laser welding machine, some called laser welder or laser welding system, adopts a high energy density of laser beam to create fine, deep weld seams and high welding rates. Laser welding machines are mainly used to weld metals. Those laser welders for metals have the ability to weld dissimilar materials. 2000watt powerful handheld laser welding machine mian for welding thick material,Single side weld penetration up to 5mm. double side weld penetration us to 10mm.