The optimum function of rotary shaft seals depends on many factors. One of them is the wettability of the sealing lip. This parameter plays a particularly important role with synthetic lubricants such as polyglycol. If wetting is too low, not only does wear on the sealing lip increase, but the contact with the rotating shaft can also damage the … [Read more...]
Filter maintenance 101
Setting planned and intelligent filter maintenance programs can reduce downtime, increase efficiency and usher your hydraulic systems into the IoT future. By Josh Cosford, Contributing Editor Plant maintenance practices vary by industry, by economic conditions, by process and by employees. Some plants may have strict preventive maintenance … [Read more...]
How do water hydraulics work?
By Josh Cosford, Contributing Editor Most of you are familiar with the use of oil as the fluid medium for hydraulic systems, which is inherently excellent at its job. It lubricates well, provides good heat capacity and is stable over various pressure and temperature ranges. As good as oil is, it’s not the only power transmission liquid in use … [Read more...]
Electrically conductive PTFE-based seal materials for dynamic applications
Trelleborg Sealing Solutions has launched Turcon MC1 and Turcon MC2 materials, the only PTFE-based (polytetrafluoroethylene) electrically conductive materials suited for use in spring and elastomer-energized seals. Engineered for dynamic applications, seals and bearings from the materials will provide reliable electric connection between moving … [Read more...]
Pressure-released wiper prevents debris from reaching critical components
ClearSeal PRW, from Seal Engineering AS, is a patented, pressure-released, internal wiper with a filter function that prevents debris in the hydraulic oil /pressure media from reaching seals, bearings and other components. It provides insurance against breakdown in hydraulic systems due to contaminated media. ClearSeal’s compact design and … [Read more...]
Adsorber filters protect against harmful condensation
Water in the oil is a serious issue for many hydraulic systems, because it can lead to increased wear and leakage. Adsorber filters which prevent moisture ingress via the tank breather system provide a remedy, according to engineers at HANSA-FLEX, Bremen, Germany. Unfortunately, although these filters can prevent serious damage and high … [Read more...]
New oil dehydrator technology from Schroeder Industries
Schroeder Industries has introduced the Schroeder 30-gpm North American Vacuum Dehydrator (NAV) Unit. With the price of oil fluctuating, the increased cost of used oil disposal, and the pressure to maintain a 100% planned up-time schedule, the only effective solution is to maintain the fluid at the highest purity levels, and by doing so, extend … [Read more...]
Early warning system heads off downtime
Unit Fluid Monitoring (UFM) systems permit in-depth monitoring of hydraulic power packs and lubrication systems, according to officials at Hainzl, a manufacturer of hydraulic, automation and robotic products based in Linz, Austria. The main focus is on analyzing the oil for signs of humidity, aging and degree of contamination, as well as monitoring … [Read more...]
Greene Tweed highlights Arlon 3000 XT thermoplastic polymer
Greene Tweed has announced the availability of its innovative Arlon 3000 XT thermoplastic for extreme conditions in oil and gas applications. Greene Tweed’s advanced engineering thermoplastic, Arlon 3000 XT, delivers improved performance over other available materials: in dynamic mechanical analysis, it demonstrated a glass transition … [Read more...]
How do you remove water from your hydraulic system?
It’s common knowledge that particulate contamination is unwanted in hydraulic systems. Contamination in hydraulic oil can damage mobile and industrial machinery. Of as much concern should be water in oil, as it too can lead to component failure. Water in hydraulic fluid can be seen as free, dissolved or emulsified and can reduce hydraulic … [Read more...]
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