Mobile work machines demand reliability, durability, and efficiency, all within a compact design. Traditionally, hydraulic motors have met these needs with high power density, making them essential for applications like excavators, wheel loaders, and telehandlers. However, Liebherr’s latest innovation—permanent magnet machines—now offers the same power density without the complexity and risks associated with hydraulic systems.
A Sustainable and Future-Ready Solution
Designed for battery and diesel-electric drive systems, the directly oil-cooled electric machine enables seamless installation and electrification of existing hydraulic drive concepts. With lower cooling circuit pressures, the risk of leaks is significantly reduced, enhancing safety and eliminating potential emissions, contamination, and accidents from burst pipes. This makes permanent magnet machines a sustainable, future-proof alternative.
Efficiency, Longevity, and Cost Savings
Liebherr’s innovative design significantly reduces maintenance requirements, minimizing downtime and lowering maintenance costs. The high torque-to-speed ratio extends the machine’s lifespan and increases the Mean Time Between Failures (MTBF) by reducing the number of gear stages.
With an efficiency of 94-96%, permanent magnet machines far outperform hydraulic motors, which typically operate at around 50% efficiency. While electric motors may have higher initial costs, their lower operating expenses make them the more cost-effective choice over the long term.
Transforming Mobile Applications
Liebherr’s permanent magnet machines provide an ideal solution for mobile work equipment, offering compact installation, reduced emissions, and higher energy efficiency. As the industry moves towards electrification, this innovative technology sets new benchmarks in sustainability and performance.
