You can also find further helpful information on the subject of off-line filtration at fluidpflege.de
Customer test report oil service unit FAPC016 – Machining center machining industry

The additional cleaning of hydraulic oil in a machining center with a bypass filter may appear uneconomical at first glance – an objection that we are often confronted with by machine operators. However, a concrete practical example underlines the fact that this assumption is not always correct.
As part of a product presentation, we took the opportunity to demonstrate the use of an bypass filter in a spontaneous test. To our surprise, we discovered that despite a closed system and the presence of filtration, the purity class of the hydraulic oil required by the machine manufacturer in accordance with ISO 4406 could not be achieved. This result after cleaning with the FAPC016 oil service unit emphasizes the potential importance of the bypass filter.
Customer test report oil service unit FAPC016 – Machine for the production of wire products

Monitoring the oil quality in hydraulic systems is a key aspect of proactive maintenance. Regardless of the tank volumes, every company should view these checks as a long-term investment.
The quality and purity of the hydraulic oil are crucial for the efficient functioning of all components in the system. It is essential to consider oil not just as a consumable, but as an integral part of the machine. Studies show that around 80% of failures in hydraulic systems are due to worn, contaminated or even incorrectly selected oil.
Contaminated oil can lead to costly and long-lasting failures, especially in hydraulic pumps, hydraulic motors and high-priced proportional or servo valves. Fortunately, the cost of investing in oil service equipment or bypass filters is low compared to the potential savings from avoiding machine downtime.
Relevance of oil care in elevator maintenance
A passenger elevator should not be limited exclusively to safety and hygiene, but should also be constantly ready for use to transport passengers and freight reliably between floors. The focus here is on reliability, especially when it comes to essential transportation tasks. To ensure the best possible availability, manufacturers, operators and service providers rely on innovative concepts. Regular maintenance and the use of high-quality components are becoming increasingly important for hydraulic elevators. One aspect that is often overlooked is the quality of the hydraulic oil, and compliance with the purity class is of great importance…