Among mobile-equipment manufacturers, electrification — the concept of replacing diesel engines and traditional hydraulics with electric drives and batteries — is without a doubt a hot topic. But OEMs should consider both the financial and engineering ramifications before jumping in head first, according to Thomas Schulze, Drive System Application Engineer with Liebherr Components in Biberach, […]
Utilities up in the air — safely — with hydraulics
While many utilities vehicles use fluid power for power and control, lift platforms and telehandlers especially rely on the reliability and safety of hydraulics. By Josh Cosford, Contributing Editor The utilities sector is any industry related to the delivery of essential infrastructure services to end use customers, and these services include water, sewage, electrical, […]
Smart hydraulics integral to automated dozing
Komatsu America, Rolling Meadows, Ill., recently introduced its Proactive Dozing Control logic, a fully-integrated dozing control system that lets operators perform auto-stripping, auto-spreading and high production dozing, as well as finish grading. Available on several units, Komatsu’s Proactive Dozing Control logic is built on the company’s existing intelligent machine control. The system uses Global Navigation […]
Valve technology for enhanced control
Innovative application-specific valve concepts are one of the most important requirements for boosting productivity in mobile hydraulic applications, according to the engineers at Bucher Hydraulics, Remscheid, Germany. The company’s new modular SC12 proportional directional valve system, for example, offers responsive control behavior and low operating costs with consistently high machine availability. At the same time, […]
New position sensor for hydraulic cylinders offers almost no stroke loss
Mobile machine designers are often faced with the following dilemma: accommodating quite a large functionality in the smallest possible installation space. Some mobile machines and utility vehicles must comply as well with unambiguous regulations regarding the width or height of the vehicle. The difficulty of this task becomes particularly evident when additional functions are to […]
Tilting coupler technology helps in construction application
Ray Clapp, owner of Coast Range Construction, Homer, Alaska, was searching for a way to increase efficiency on job sites. Coast Range specializes in setting foundations for lodges and cabins as well as performing house-site development for contractors. Homer has very little flat ground to build on. Terrain ranges from sea level up to 1,400 […]
Progressive versus linear spools in Danfoss PVG mobile proportional valves
Contributed by Buck Schmitt, CFPS, Territory Manager – Eastern PA and Mid-Atlantic, Kraft Fluid Systems When designing hydraulic systems for mobile machinery, there are a variety of requirements that range from basic setup functions to extremely precise maneuvers. Let’s examine the more precise and critical functions. There are several ways to approach hydraulic system challenges. […]
We’ve come a long way, baby: the evolution of construction equipment hydraulics
Modern mobile machinery has changed quite a bit. Here is a look at how construction equipment hydraulics have changed over the last couple hundred years. By Josh Cosford, Contributing Editor On a road near my home, there exists a hand-laid stone fence, perhaps 4 ft high and a hundred times as long. Crafted from locally-sourced […]
Mobile hydraulics gets an unwelcome jolt
One unmistakable take-away from this year’s bauma show was the buzz surrounding electrification. The idea of massive mobile machines running only on batteries may seem far-fetched, but for smaller equipment it has become a reality. At every turn, major manufacturers like Cat, Kobelco, Komatsu and Volvo to niche players like Ecovolve and Giant featured electrified […]
Energy-efficient hydro accumulators for energy storage or conversion
Roth Hydraulics, Biedenkopf, Germany, offers energy-efficient hydro accumulator solutions for systems requiring storage or conversion of hydraulic energy. These fluid technology components are used in mobile hydraulics, energy and power plant systems, industrial hydraulics, machine tools and oil and gas systems. Roth Hydraulics, formerly known as Bolenz & Schäfer, is a company with a long […]
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