Improper maintenance, contaminated hydraulic oil is one of the principal causes of faults in any hydraulic operated machines. In 70% to 90% of cases, damage to hydraulic components is directly attributable to contamination in the hydraulic system. The goal of oil management is to prevent contamination of this kind in order to enhance the availability, reliability and efficiency of ipower packs and machines. Oil management is not strictly the responsibility of the end user, it also involves the manufacturer of the molding machine.

Hydraulic oils can become contaminated through air, water or solid particles. Contamination by solid matter is the primary cause of significant surface damage to hydraulic components through wear mechanisms such as abrasion. The consequences are control inaccuracies, leaks, losses in efficiency, and a shorter service life of parts. As more particles accumulate in the hydraulic oil, wear is further increased. Coarse filter systems are limited in their ability to interrupt this chain reaction of wear.