Equipment manufacturers serving the utility industry displayed a wide range of machines at the 2019 International Construction & Utility Equipment Expo (ICUEE) in Louisville, Ky., with products built to handle tasks as varied as vegetation management, urban construction and transmission-line service. Terex Utilities launched three new telescopic and material handling aerial devices designed for transmission […]
Caterpillar launches next-generation mini hydraulic excavator
At this year’s ICUEE show in Louisville, Caterpillar unveiled the Cat 306 CR mini hydraulic excavator, which marks the company’s entry into the 6-ton class. According to Cat officials, the 306 CR mini excavator is built to exceed customer expectations with strong performance, enhanced operator experience and simplified maintenance with extended service intervals. The machine […]
The fascinating future of mobile hydraulics
At this Spring’s Fluid Power Technology Conference in Milwaukee, three panelists from major OEMs discussed the future of mobile hydraulics, and what changes designers can expect to see in the coming years. Sitting on the panel were Gary Dostal, Manager – Mechanical Engineering, Komatsu Mining Corp.; Greg Downs, Senior Principal Engineer, Zoomlion Heavy Industry NA […]
How do you safely precharge an accumulator?
By Josh Cosford, Contributing Editor When high-pressure hydraulics fail, the result is often a whimper as a seal blows out and pressure decays to useless levels. The harm to the surrounding environment and spectators is often little or none, which is why high-pressure hydraulic systems are so popular. However, when high-pressure pneumatic systems fail, you […]
Pure.Mobile position sensor kit for utility vehicles
Heat, cold, shock, vibration, water, mud or dust – modern mobile machines must work reliably under all kinds of conditions. To ensure this, the machines need sensors that record and provide data continuously even under the harshest conditions. To acquire and send this data, sensor specialist SIKO has developed Pure.Mobile technology and brought it onto […]
Liebherr’s strategy for electric mobile machines
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 […]
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