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.
液壓油濾芯在液壓油系統中，用于濾除工作介質中的，固體顆粒及膠狀物質。以及濾除各種油系統中從外部混入或系統運轉中內部產生的固體雜質，它可以有效的控制工作介質的污染度，保護機械設備的正常工作，是輸送介質的管道系列中不可缺少的部分。
液壓油濾芯主要安裝在液壓系統中的：吸油路上、壓力油路上、回油管路上、旁路上，單獨的過濾系統上。