As regulations tighten and technology advances, Parker Hannifin shows how a systems-level approach to electrification keeps work moving, and keeps machines ahead of what’s next.
By Parker Motion Systems Group
The heavy equipment industry is at an inflection point. Driven by tightening environmental regulations, advances in battery technology and growing demand for operational sustainability, manufacturers of construction, agricultural and mining machinery are accelerating the transition away from traditional diesel-powered internal combustion engines (ICEs) toward electric and hybrid alternatives. For original equipment manufacturers (OEMs) and fleet operators, the shift is no longer a distant ambition. It is an engineering reality that demands a new way of thinking about machine design.
The regulatory pressure is mounting on multiple fronts. In North America, landmark policies such as California’s Advanced Clean Trucks regulation and the EPA’s stringent emissions standards for heavy-duty vehicles are pushing the industry toward zero-emission solutions. More than a dozen U.S. states are following California’s lead, signaling that stricter requirements are not just a regional trend but a national direction of travel. For OEMs, compliance is increasingly inseparable from competitiveness.
Yet the case for electrification extends well beyond regulatory compliance. Electric machinery offers measurably lower operating costs, thanks to fewer moving parts and reduced fuel consumption. It operates more quietly, making it better suited for urban jobsites and environmentally sensitive locations. And critically, it is far more energy-efficient: while a diesel-powered machine converts only about 13% of its fuel energy into useful work, a battery-powered equivalent can achieve 30%, and that figure rises to 42.5% when paired with an optimized hydraulic system.
Those numbers underscore a key insight from Parker Hannifin, a global leader in motion and control technologies: transitioning to electric power is not simply a matter of swapping out a diesel engine for a battery pack. It requires a holistic reevaluation of the entire machine system.
Start with the Work Cycle
The foundation of any successful electrification project is energy mapping, a rigorous analysis of how and where energy is consumed across a machine’s full duty cycle, including active work phases, idling and transportation. Unlike diesel engines, which are typically sized for peak power demand, electric motors are optimized around average power. This fundamental difference means engineers must understand the baseline work cycle in detail: how long a machine operates, how often it is idle and how opportunities for recharging can be integrated into daily operations.
At Parker’s Global Mobile Systems Center in Chicago, engineers use advanced modeling tools (including displacement look-up tables, operational parameter maps and ePump efficiency maps) to simulate different system configurations and optimize the balance between efficiency, performance, and total cost of ownership. This analytical groundwork informs critical decisions around motor sizing, component selection and system architecture.
Hydraulics, Energy Recovery, and Thermal Management
Hydraulic systems are among the largest consumers of energy in off-road machinery, and improving their efficiency is one of the highest-leverage opportunities in an electrification redesign. Modern approaches include variable displacement pumps, advanced mobile valves, electro-hydraulic actuators (EHAs) and energy recovery systems that capture power during operations such as lowering a load or decelerating. That energy would otherwise be wasted as heat.
EHAs are particularly promising. By coupling an electric motor directly to a hydraulic pump, they generate power on demand rather than continuously, eliminating the energy losses characteristic of constant-pressure systems. The result is precise, responsive actuation with significantly reduced energy consumption, making them an attractive combination for tasks like lifting, digging and steering.
Thermal management is equally central to the success of electric machinery. Batteries, electric motors, inverters and hydraulic systems each operate within different ideal temperature ranges, and the consequences of inadequate heat control range from reduced efficiency to accelerated component degradation to, in extreme cases, thermal runaway. Effective thermal management systems must handle both cooling in hot climates and heating in cold ones, a challenge that is especially acute in Nordic operating environments. Parker addresses this through customizable heat exchanger and fan drive solutions designed to suit the specific demands of each vehicle type.
New Skills for a New Era
The engineering demands of electrification are reshaping what it means to build a machine. Success requires competency in software and controls engineering, battery engineering, power electronics and thermal systems. These are disciplines that were peripheral or nonexistent in the diesel era. It also demands new organizational capabilities: structured processes for flowing down functional requirements, third-party certification of safety-critical systems and cross-disciplinary collaboration between electrical and hydraulic engineers who must co-design systems from the ground up.
There is no universal solution. Each machine type, with its unique number of actuated axes and duty cycle characteristics, requires a tailored approach. The most effective outcomes emerge when engineering teams work closely together to find the right combination of electric and fluid power technology for each application.
A Partnership Approach
With more than 15 years of experience in electrification technologies and transferable expertise drawn from its aerospace business, Parker Hannifin offers OEMs a broad and integrated portfolio that spans configured ePumps, electric vehicle motors, mobile inverters, electronic controls, thermal management systems and electronic coolant hoses. Through its Expert Centers in Chicago and Borås, Sweden, and a network of Certified Mobile Electrification Centers in Marysville, USA and Offenburg, Germany, Parker provides end-to-end support: from initial application engineering and component selection through to commissioning, tuning and after-sales service.
For an industry navigating one of its most significant technological transitions in decades, the ability to draw on deep systems expertise and partner with a firm capable of bridging electric and hydraulic domains may prove to be the most decisive competitive advantage of all.
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