Hydraulic oil filter element is used in hydraulic oil systems to filter out solid particles and colloidal substances in working media. And filter out the solid impurities generated from the outside or inside the operation of various oil systems, which can effectively control the pollution of the working medium and protect the normal operation of machinery and equipment. It is an indispensable part of the pipeline series of conveying media.

Hydraulic oil filter elements are mainly installed in hydraulic systems: oil suction road, pressure oil road, oil return pipeline, bypass road, and separate filtration system.
液压油滤芯在液压油系统中，用于滤除工作介质中的，固体颗粒及胶状物质。以及滤除各种油系统中从外部混入或系统运转中内部产生的固体杂质，它可以有效的控制工作介质的污染度，保护机械设备的正常工作，是输送介质的管道系列中不可缺少的部分。
液压油滤芯主要安装在液压系统中的：吸油路上、压力油路上、回油管路上、旁路上，单独的过滤系统上。