Leaks in seals and components (rotary distributors, tool holders, covers, etc.) in the cooling lubricant system introduce water with coolant components into the hydrostatic systems of the machines. Above a certain level, the oil becomes viscous, filters report clogging and the machine goes into trouble. Sensors for measuring the relative humidity therefore permanently monitor the water content in the oil. When the max. Limit, the color of the display of the monitoring unit changes to glow red. The customer specified max. Limit value is 80 % of the saturation limit. If the water content reaches 100% of the saturation limit, the hydraulic oil can no longer keep the water in solution, resulting in the emulsified and, depending on the water separation capacity of the oil, also free water.
As a result of the contamination, the corresponding oil system had to be emptied, rinsed and refilled with fresh oil with very high oil and oil management costs. In addition, the sometimes complicated search for causes sometimes led to longer downtimes and thus production losses. In order to reduce costs and production downtimes, Liebherr-Components Biberach was looking for a water separator that would dry the oil quickly, reliably and cost-effectively during the operation of the machine. One of the equipment manufacturers recommended one of CJC’s® oil care systems, which was subsequently tested.