Characteristics and Different Types of Hydraulic Strainer Filter.

Mesh oil filter
The filter element of the mesh oil filter uses copper mesh or stainless steel mesh as the filter material. It is wrapped with one or two layers of copper wire mesh on a plastic or metal cylindrical frame with many holes around it. Its filtration accuracy depends on the copper mesh. The number of mesh layers and the size of the mesh. This type of oil filter has a simple structure, large flow capacity, and is easy to clean, but has low filtration precision. It is generally used at the suction port of a hydraulic pump.

Line gap oil filter
Line-gap oil filters use steel wires or aluminum wires densely wound around the outside of a cylindrical frame to form a filter element, relying on the tiny gaps between copper wires to filter out impurities mixed into the liquid. Its structure is simple, its flow capacity is large, and its filtration accuracy is higher than that of a mesh oil filter. However, it is not easy to clean and is mostly a return oil filter.
paper oil filter
The paper oil filter has a filter element made of plain or corrugated phenolic resin or wood pulp microporous filter paper. The paper core is wrapped around a frame made of tinned iron with holes to increase strength. In order to increase the filtering area, the paper core is generally made into a folded shape. It has high filtration accuracy and is generally used for fine filtration of oil. However, it cannot be cleaned after it is clogged, so the filter element must be replaced frequently.

Sintered oil filter
The filter element of the sintered oil filter is made of sintered metal powder and uses micropores between particles to block the passage of impurities in the oil. Its filter element can withstand high pressure, has good corrosion resistance, and has high filtration precision. It is suitable for high-pressure and high-temperature hydraulic systems that require fine filtration.