Hydraulic fluid selection criteria include the expected range of operating temperatures, available means of temperature control and fluid physical properties at expected temperature levels. Where ambient and structural temperatures are above hydraulic fluid flash and/or fire points in a compartment, the potential fire hazard must be … [Read more...] about Why should you consider operating temperature when selecting hydraulic fluid?
Machine manufacturers increasingly demand both functional integration within hydraulic systems and, of course, lower costs. Add to that, today’s engineers expect almost unlimited freedom when creating new designs. As a result, plastics have become an increasingly important material for constructing hydraulic tanks, according to engineers at … [Read more...] about Hydraulic tank with integrated filter
Often, users of hydraulic fluid will confuse a chemical analysis with a complete fluid analysis, which provides particle count of contaminants, amounts of water, and more. Oil samples that are sent off to a lab without specific instructions will return with valuable data but not all the data points you require. In most cases, the majority of labs … [Read more...] about Is chemical analysis all I need to maintain my hydraulic fluid?
Hydraulic fluid is used in fluid power systems mainly because of its incompressibility or stiffness. This allows it to provide consistent and powerful transmission of energy throughout a hydraulic system, which allows the actuators to complete the work, whether they are linear or rotary motions. The advantage of a fluid’s compressibility ensures a … [Read more...] about What is the purpose of hydraulic fluid?
To quantify cleanliness in any fluid power system can’t be condensed into any problem with one solution scenario. Various types of contamination occur in fluid power systems: gaseous (e.g. air), liquid (e.g. water) and solid contaminants (e.g. rust). Solid contamination is subdivided into three groups: extremely hard, hard and soft particles. … [Read more...] about How do you quantify hydraulic fluid cleanliness?
Klüber Lubrication, a worldwide manufacturer of specialty lubricants, offers Klübersynth FB 4 Series, an ultra-fine filtered synthetic spindle and hydraulic oil that extends component life and reduces operating costs. Oils in the Klübersynth FB 4 Series are designed to lubricate rolling bearings of highspeed machine tool spindles. They can also … [Read more...] about Klüber Lubrication offers ultra-fine filtered hydraulic oil
Thanks to higher operating pressures, power density in many hydraulic systems has increased significantly in recent years. That can mean higher performance, smaller and lighter components and better efficiency, although it can also increase the susceptibility to wear and premature failures. Newer pumps and motors are built to handle higher loads … [Read more...] about Hydraulic fluid test matches real-world conditions
In recent years, operating pressure and power density in many newer hydraulic systems have increased significantly. Not too long ago, pressures in circuits topped out at around 3,000 psi. Now, systems running at 5,000 to 7,000 psi or more aren’t uncommon. On one hand, that can mean better performance, smaller and lighter components and, possibly, … [Read more...] about Eliminating a weak-link in hydraulic performance with new hydraulic fluid test
Various types of contamination occur in fluid power systems: gaseous (e.g. air), liquid (e.g. water) and solid contaminants. Focusing on water, this type of contamination can be caused by moisture from ambient air, leakage of cooling systems or process water, leakage of seals and chemical processes such as combustion, oxidation and … [Read more...] about How do you remove water from hydraulic fluid?
In a recent blog, “A nanoscale view of hydraulic fluids,” we related how researchers at the University of California, Merced and the Milwaukee School of Engineering are working to better understand the fundamentals of hydraulics fluids on the molecular level, and how that might lead to more-efficient fluid-power systems. A key tool in the … [Read more...] about What is molecular dynamics simulation of hydraulic fluid?