The ZGA-type system belt filter consists of several parts, including a liquid tank, sedimentation box, filter non-woven fabric/belt, reducer, transmission mechanism, signaling mechanism, and liquid pump. This filter utilizes the filtering action of the belt to remove metal and other non-metallic impurities from the coolant. It ensures the cleanliness of the cutting fluid, extending the coolant's lifespan by 10-20 times compared to before, thereby improving the surface quality of the machined parts. The filter effect of this belt filter reaches 98%, allowing for automatic control and making it an ideal accessory for various types of grinding machines, honing machines, and other precision processing machines.