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Featured

How electrified controls simplify hydraulic machines

December 17, 2024 By Mary Gannon

Figure 3. A variety of electrified controls and options are available on modern hydraulic machinery.

By Josh Cosford, Contributing Editor Hydraulics is a venerable technology as mature as any competing force transfer system outside of straight mechanical conveyance. Most recent hydraulic advancements aren’t from any fundamental changes in the pump, valves and actuators used in hydraulic systems but rather from the implementation of increasingly advanced electronic technology. Early fluid power […]

Filed Under: Components, Controls, Engineering Basics, EV Engineering, Featured

Parker Hannifin highlights new Force Command EHA technology

November 4, 2024 By Mary Gannon

Parker Hannifin's Force Command EHA prototype on display at MinExpo 2024.

As at most mobile machinery shows this September, Parker Hannifin showcased a variety of technologies to ensure efficient, powerful mining machines. Newest on display, though, was its Force Command electrohydraulic linear actuator. This new EHA features a brushless dc motor with integrated controller and absolute position sensing, giving users full control over the toughest and […]

Filed Under: actuators, Components, EV Engineering, Featured Tagged With: parkerhannifin

Fail-safe locking device can hold four million pounds

October 28, 2024 By Rachael Pasini

Fluid power engineers are familiar with hydraulic load-holding or counterbalance valves that prevent sudden load drops and control descent speed. Such valves ensure smooth, stable operation and provide a safety mechanism in mobile and industrial machinery. The downside is they can fail due to wear, incorrect positioning, or failures in the hydraulic system. Pennsylvania-based York […]

Filed Under: Cylinders, Featured Tagged With: yorkprecision

Are we looking at electrification through rose-colored glasses?

October 25, 2024 By Mary Gannon

At MinExpo, Liebherr announced a partnership with Fortescue Zero for its T 264 autonomous truck, where Fortescue's stationary fast-charging solution uses robotic connections that can provide up to 6 MW of power in just 30 minutes. The fast charge is groundbreaking for a machine this size. But the companies. have not released data on how long the batteries last on these machines.

Electrification is totally in vogue these days. You can’t visit any type of off-highway event and not be overtaken by this trend. The need to reduce emissions is 100% necessary and a noble deed. But are battery-powered machines the only realistic solution? In some cases, the answer is a resounding YES! Compact machinery such as […]

Filed Under: EV Engineering, Featured

Regenerative suspension … for mobile hydraulic applications?

October 23, 2024 By Mary Gannon

Modern mobile machinery, such as tractors, use hydraulic suspension and pneumatic accumulators, which could be converted to regenerative suspension systems.

By Josh Cosford, Contributing Editor The automotive industry is leaving no stone unturned as it explores every possible technology and advancement that can improve performance while reducing CO2 emissions. Hybrid and electric vehicles have been employing regenerative braking systems that recapture kinetic energy through a motor generator rather than convert the vehicle’s inertia into heat, […]

Filed Under: Accumulators, Components, EV Engineering, Featured

Cut-to-length calls for high-end hydraulics

October 23, 2024 By Rachael Pasini

Hydraulics expert Carl Dyke shares insight on forest harvesting machines and what it takes to cut-to-length. “I grew up in logging. As a little kid, my father and grandfather would take me out to the woods to go timber cruising, which meant walking around and looking at the stands of trees,” said Carl Dyke, hydraulics […]

Filed Under: Featured Tagged With: cdindustrialgroup

A primer on hydraulic pilot valves

October 10, 2024 By Mary Gannon

Figure 1. A spool inside of a valve has surfaces that look like an annular piston, and poppets tend to look like a piston rod assembly or even just a floating, spring-biased piston.

Sometimes valves are actuators, and those actuators need valves. Sounds confusing, I know, but hear me out. With few exceptions, most hydraulic valves have at least some type of behavior that mimics a cylinder. A spool inside of a valve has surfaces that look like an annular piston (Figure 1), and poppets tend to look […]

Filed Under: Components, Engineering Basics, Featured, Valves / Manifolds

7 ways to reduce weight on mobile hydraulic machines

September 20, 2024 By Mary Gannon

Reducing weight on mobile machines, especially compact ones like this mini excavator, is crucial to efficient, environmentally friendly designs. Hydraulics can play a part in many ways.

By Josh Cosford, Contributing Editor One of the few disadvantages of hydraulics is the mass added to components capable of withstanding thousands of pounds of pressure. Of course, the raison d’ệtre of hydraulics is the transfer of pressurized fluid to achieve work. But do high-pressure components have to be high mass, especially on mobile machines? […]

Filed Under: Engineering Basics, EV Engineering, Featured

Embrace efficiency and innovation for electrified mobile machinery

September 18, 2024 By Mary Gannon

In his discussion on electrified mobile machinery, Chad Larish from Danfoss highlighted the four phases of electric vehicles.

Learn the advantages and disadvantages of the four phases of electrifying mobile machinery — swapping diesel for batteries, optimizing hydraulics, recuperating energy, and going completely electric and eliminating hydraulics. Mobile machinery power transmission is rapidly evolving, driven by regulatory pressures, growing demands for greener technologies, and reduced operational costs. In this article, we delve into […]

Filed Under: Components, EV Engineering, Featured, Pumps / Motors Tagged With: danfoss

4 key considerations when choosing electric motors and equipment

September 3, 2024 By Mary Gannon

Electronic Open Circuit pump combines Software and hydraulic components for dynamically controlling travel and working functions in one hydraulic circuit.

Contributed by Enrique Busquets  •  Director of Engineering Systems and Components, Bosch Rexroth Fueled by unceasing innovation, electric motors have solidified their position as a catalyst for change, reducing countries’ greenhouse gas emissions (ghg) and lowering total cost of ownership for heavy- and medium-duty vehicles and machinery. The accelerated adoption of electric motors has been […]

Filed Under: Components, Engineering Basics, EV Engineering, Featured, Pumps / Motors Tagged With: boschrexroth

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