Which cooling method is better for handheld laser welding?

Water cooling equipment occupies a large area and is inconvenient to move, making it more suitable for high-power products on fixed sites. However, high-power equipment cannot weld thin materials well; The air cooling equipment has a small volume and insufficient machine penetration, making it difficult to weld thick plates; The dual circuit refrigerant direct cooling handheld laser welding is not only small in size and easy to move, but can weld 0.5mm thin materials at the thinnest and 6mm thick plates at the thickest, and can work continuously for 7 * 24 hours, greatly reducing the application and maintenance costs of enterprises.