The high-quality stainless steel cold water circulation pump/electronic pump is adopted, featuring large flow, high head, low noise and long service life. The plastic water tank, stainless steel pipelines and valve components are free from rust. The control system is equipped with a digital controller, which can display the cooling water temperature in real time and is fully automatically controlled by CPU. It has an automatic fault diagnosis function, directly showing the fault code on the screen to prompt users to handle it quickly. It provides an RS485 communication interface to realize communication with the host. It offers multiple protection functions and passive alarm terminals, remote control terminals, making it easy to achieve centralized control and monitoring of CNC. Among them, the "dual-temperature type" water cooler can not only cool the laser, but also cool the lenses.