{"id":2905,"date":"2024-03-06T15:43:35","date_gmt":"2024-03-06T14:43:35","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/fine-filtration-of-hydraulic-oil\/"},"modified":"2026-04-15T11:54:16","modified_gmt":"2026-04-15T09:54:16","slug":"fine-filtration-of-hydraulic-oil","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/fine-filtration-of-hydraulic-oil\/","title":{"rendered":"Fine Filtration of Hydraulic Oil"},"content":{"rendered":"\t\t
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Fine Filtration of Hydraulic Oil<\/h1>

Fine filtration of hydraulic oil<\/a> offers numerous advantages and has gained increasing importance in the recent past. The most significant argument for fine filtration is the reduction of wear and tear, and consequently, an extension of the service life of the machine or hydraulic system<\/a>. The prevention of production downtimes should also be emphasized. These two factors result in clear cost reductions. In addition, maintenance intervals are extended, and environmental impact is significantly reduced. <\/p>

When a new hydraulic system<\/a> is put into operation, contaminants are present in the system from the outset, which, without adequate filtration, significantly shorten the service life of valves and cylinders. This so-called “initial contamination” largely consists of coarse particles. During operation, various other types of contamination arise. In addition to solid particles, free or dissolved water and undissolved air are considered contaminants. A large part of hydraulic oil contamination can be removed with situation-specific fine filtration. <\/p>

Contamination<\/h2>

Contamination in the hydraulic system<\/a> is the main cause of failures and downtimes. Almost 90% of hydraulic system<\/a> failures are caused by various impurities in the hydraulic oil. Contamination is either already present in the hydraulic system<\/a>, enters the hydraulic system<\/a> from outside, or originates within the hydraulic system<\/a>: <\/p>

  1. Pre-existing contamination:
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