Many items requiring lubrication by petroleum products need the lubricant to be especially clean. The oil
filter is a device used for this purpose, particularly in automotive and other applications for internal combustion engines. Earlier, automobiles did not have any way of filtering oil resulting into very frequent oil changes. As automotive technology advanced, the first oil filtration devices were developed, becoming widespread by the late 1920s. In those days, oil filters were largely of the cartridge type, generally consisting of a pleated paper element, surrounded by a metal canister perforated
with many holes inside sheet metal housing.
Wear particles in the hydraulic oil cause most hydraulic failures. A hydraulic oil
filter with high cleaning efficiency is important to protect the hydraulic system from unnecessary wear. High dirt capacity gives the filter long service life with unchanged performance. The Italy based BERTACCHI E FILIPPI IMPIANTI makes the filters, which can eliminate particles as small as 0.1micron, to protect handling equipment from abrasive dust. Their filters oil units extend component life and minimise replacement and downtime costs by eliminating the chief causes of fluid deterioration and machinery damage; contamination, condensation, oxidation and viscosity reduction.