Manufacturers of mobile machines must decide whether to control their pumps using pressure, torque or swivel angle — and always have to accept compromises as a result. The same applies to numerous other hardware parameters which, once defined, stay the same throughout a machine’s service life. According to Simon Dreher, an excavator industry specialist with […]
Components
How are ball valves used to ensure hydraulic safety?
By Josh Cosford, Contributing Editor In fluid power, safety is always a concern. Everyone understands the force capacity of hydraulic actuators (which explains why some YouTube hydraulic press channels have millions of subscribers). Indeed, a high-powered hydraulic press can make nearly any material appear no stronger than modelling clay. It’s wise to respect the power […]
Swing-axle cylinders combine travel comfort with rigid work platform
Mobile machines have to meet widely differing requirements. To get to a job site, they need good off-road capability. While they are working, however, high rigidity and stability are essential. Add to that are increasingly demanding safety and environmental regulations. Swing-axle cylinders are built to fulfill all these requirements. According to engineers at Bucher Hydraulics, […]
eLION platform for electrifying mobile machines
Manufacturers from all sectors have recognized that electric drives are an important building block for future viable, sustainable mobile machines. To support and encourage the electrification of off-highway equipment, Bosch Rexroth is now presenting the eLION product portfolio. The eLION family covers a wide range of components, including a full range of electric motor-generators, inverters […]
Rexroth’s Atom motor, condition monitoring technologies enable uptime in mining
The big highlight for Bosch Rexroth at this year’s MinExpo held in September was its new Hägglunds Atom hydraulic motor. Smaller than traditionally offered over the years, the Atom was actually developed several years ago under a different name but at a much lower pressure rating, said Brian Howell, Hägglunds Sales Manager. But the market […]
The venerable vane pump – is it still relevant?
By Josh Cosford, Contributing Editor I’ll cut to the chase; the best days for the hydraulic vane pump are likely behind us but they’re not quite ready for extinction. Let me tell you why I feel this way. Just like much of technology from the early days of the twentieth century, the vane pump came […]
Modular and block control valves for excavator use
Linde Hydraulics GmbH & Co. KG has introduced a new generation of control valves for use in wheeled excavators. The new valve block VW 22/18 M5-03 for the open circuit is characterized by its modular system, while the monoblock with five sections plus pressure relief section represents the basic set-up. Optionally, three additional sections can […]
Hydreco to highlight new gear pump, plant at Italian agriculture show
Hydreco, the company of the Duplomatic Group has doubled its production sites in the Emilia region, Italy and will participate in the International Agricultural and Gardening Machinery Exhibition, scheduled in Bologna, Italy, from October 19-23 with the new range of external gear pumps (stand C28, hall 18). At the show the company will present its […]
Mobile machine controllers for electrohydraulic requirements
Helios Technologies announced the launch of uControl mobile machine controllers, an innovative new product offering developed under its Enovation Controls brand that delivers precise proportional control for heavy-duty equipment in ultra-rugged environments. “The new uControl platform is a major opportunity for our customers with complex electrohydraulic requirements,” said Josef Matosevic, the company’s President and CEO. […]
Compact explosion-proof pressure switch features flameproof exposure
SUCO Technologies will be highlighting its newest pressure switch at Utility Expo next week, as it introduces what is says is the world’s most compact ATEX pressure switch. With the new ATEX series 0342 / 0343, SUCO introduces two compact explosion-proof pressure switches with flameproof enclosure. Attendees can see the new switches at Booth B-1823. […]
