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The Potential Danger of Using an Unconnected Coupling Portable hydraulic systems used for lifting, pushing, or pulling loads of several tons operate at pressures up to 10,000-psi (680 bar). Typically, they use portable hydraulic power units consisting of a hydraulic pump operated by manual, electric, or pneumatic power to actuate one or more rams —a […]

Inside a Hydraulic Cylinder Failure A hydraulic repair facility in Australia recently shared an experience about a double-acting hydraulic cylinder that their customer said would extend, but not retract. When the cylinder came into the shop, the piston rod was almost completely retracted into the cylinder tube. Further inspection revealed the rod was stuck in […]

Why Hydraulic Costs are among the Top Expenses in Waste Collection When I worked as an editor for Hydraulics & Pneumatics magazine, I attended LOTS of trade shows. Sure, many of the exhibitors displayed hydraulic components, but my main reason for attending was to sniff out useful info from original equipment manufacturers. Because construction, mining, […]