The water chiller is used to cool the laser generato of laser die cutting machine. A laser is a device that converts electrical energy into light energy. For example, the conversion rate of a CO2 gas laser is generally 20%, and the remaining energy is converted into heat. The cooling water takes away the excess heat to keep the laser generator working normally. At the same time, when the refracting mirror directs the laser in the required direction, the chiller can also cool the external light path mirror and focusing mirror of the laser die making machine to ensure stable beam transmission quality and effectively prevent the lens from being deformed or broken due to excessive temperature.