The strength of the sintered mesh filter should also meet the standard. The strength is related to the pressure bearing capacity of the sintered mesh filter. The pressure in the hydraulic system is not constant. According to the working strength and time, the switching of the power on and off, the pressure - straight change, good sintering The mesh filter not only has to withstand the high pressure, but also has the fatigue resistance that keeps its structural strength difficult to wear under the constant pressure. The filtration performance of the sintered mesh filter element includes: the retained small particles, the retention efficiency, the flow resistance of the cleaning medium, the dirt holding capacity, and the tendency to block. When the filter material can trap the smallest particles, it is a concern of users and manufacturers. In general, the size of small particles that can be retained by various types of filter materials.