Construction Machinery – Electrification and System Integration

Construction sites are changing: Cities, public clients, and operators are demanding lower emissions, less noise, and more efficient machines. We support OEMs and operators in implementing electric construction machinery as functioning complete systems.

Electric systems for all types of construction machinery
System integration from drive to charging interface
Experience from numerous construction machinery projects
Solutions for zero-emission construction sites

Practical Requirements

Challenges

Regulatory Pressure on Construction Sites

Zero-emission construction sites are no longer a future topic. Cities such as Oslo have already introduced clear requirements and are using public tenders to drive zero-emission machines and construction sites forward.

Emissions, Noise, and Indoor Use

Construction machinery generates local emissions and noise. Electric machines significantly reduce these impacts and enable new applications, such as in tunnels or other enclosed areas where diesel machines can only be used to a limited extent.

Energy Demand and Charging Capability

Electrification rarely fails due to the concept, but rather due to the design: Battery size, charging times, fast charging, load profiles, and the required infrastructure must match the real application.

Complex System Integration

Construction machinery is not road vehicles. Work functions, hydraulics, drive systems, thermal management, and software are more tightly interconnected. That is precisely why a simple retrofit is often not sufficient.

Installation Space Is Limited

All-day operational readiness is a central requirement for many machine types. This requires corresponding battery capacities. Here, installation space often represents the actual limitation – not weight.

Are these your challenges as well? We would be happy to develop the right solution for you.

From Complexity to System

Construction: Our Solution Competence

Studies show a clear picture: Electrification takes hold first where usage profiles, charging infrastructure, and economic benefits align. Compact machines, urban applications, indoor use, and applications with predictable operating cycles offer immediate potential. While initial applications emerged with compact machines, the focus is increasingly shifting to more power-intensive machines where electrification can realize significant economic advantages. Depending on the usage profile, hybrid architectures are also a central component of sustainability efforts.

We do not just develop electric subsystems, but consider the machine as a complete system. This includes high-voltage and low-voltage architecture, battery integration, charging interfaces, thermal management, control software, and the integration of existing work functions.

An important lever lies in rethinking existing machine architectures. Particularly in the hydraulics area, electrification can be more than a drive change: It opens up the possibility to question old paradigms, rethink energy flows, and systematically improve system efficiency.

5 Reasons for SUNCAR

Why SUNCAR for Construction

Because SUNCAR is one of the few development partners that masters the entire development process, from system architecture to validated machine, from its own experience.

Experience with Real Electric Excavator Projects

We have already developed, built, tested, and further developed numerous construction machines. This experience is central because challenges only become fully visible in real-world use.

System Thinking Instead of Retrofit Logic

The market is moving away from simple conversions toward integrated electric machines. We think holistically about drive, battery, thermodynamics, software, and work functions.

Relevance for Urban and Regulated Construction Sites

Less noise, no local pollutant emissions, and new requirements in public tenders make electric construction machinery competitively relevant.

Efficiency Through New Architecture

Electrification makes it possible to reevaluate existing hydraulic and drive concepts. This is precisely where SUNCAR can help, not only to become emission-free, but also more efficient and to question existing machine architectures.

Faster from Concept to Validated Machine

We shorten development cycles by drawing on proven components, architectures, and project experience. This reduces time-to-market – with reduced development risk and a clear perspective on series implementation.

Convinced? Then please get in touch with us. We look forward to supporting you with your project.

Success Stories

Reference Projects

Successful electrification projects from various industries

KTEG ZE150W

With the ZE150W, SUNCAR and KTEG have developed an innovative mobile excavator that offers a sustainable and powerful alternative to

eXact – Electrification of the Next-Generation Construction Machine

In the eXact project, ETH, OST, FHNW, and partners developed a fully electric excavator with electric actuators and direct drives.

BOMAG single-drum roller

SUNCAR and BOMAG set new benchmarks with the electrification of the BW 177e single-drum roller!

KTEG ZE135

Whether on an urban construction site, outdoors, or indoors, the ZE135 is in its element here.

Electric Paver by Dynapac

To advance the electrification of pavers, we developed the Dynapac SD1800W e. It offers a preview of a new era

KTEG ZE23

With the ZECOM (Zero Emission Construction Machinery) excavators, battery-powered electric drivetrains are making their way into Hitachi crawler excavators.

Tailor-made Solutions

Relevant Products and Technologies for Electric Construction Machinery

High-voltage distribution systems

Electric construction machinery requires safe and robust HV architectures for distribution, protection, and integration of power components.

DC Fast Charging Interfaces

On construction sites, charging capability determines productivity. Fast charging is central to extending operating times and opening up new applications. With solutions like INTERFLOW, we address precisely this circumstance.

Thermal management

Battery, inverter, and motor must remain reliably within the temperature window even at maximum loads. This is central to performance, service life, and operational safety.

Control Software and System Logic

Electric construction machinery requires coordinated control of drive systems, work and assistance functions, charging processes, and safety functions.

Demo Machine update screen: two devices—Demo Excavator updating and Demo Excavator 2 not started.
INSIGHT Monitoring

Operating data helps, thanks to monitoring systems, to understand real load profiles, analyze charging behavior, and further develop products based on field experience.

Our Approach

Our Process

01

Analyze Application Profile

We analyze the machine, load profile, deployment location, operating duration, and charging windows.

02

Define System Architecture

We develop the architecture for battery, drive, HV/LV systems, thermodynamics, software, and charging.

03

Implement Integration

The subsystems are mechanically, electrically, and software-integrated into the machine.

04

Validate and Optimize

The machine is commissioned, tested, and further developed based on real operating data.

SHALL WE GET STARTED?

Electric Construction Machinery for Real Operating Conditions

Talk to us about system architecture, integration, and implementation of your electric construction solution.

Want to learn even more?

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