DANFOSS’ DEXTREME MAX SYSTEM REDUCES ELECTRIC EXCAVATOR POWER CONSUMPTION BY 35 %, EXTENDING RUNTIME BY 53 %
PROJECT FUNDED WITH A GRANT FROM UK GOVERNMENT’ S RED DIESEL REPLACEMENT PHASE 2 COMPETITION
Danfoss Scotland, part of global hydraulics and electric powertrain systems supplier Danfoss Power Solutions, today announced the results of its Dextreme Max system validation in a 30-tonne battery-electric excavator. Undertaken with a £ 4.29 million grant from the UK Government, Danfoss demonstrated that its Dextreme digital hydraulic architecture reduced excavator power consumption by 35 % across a representative duty cycle mix, corresponding to 53 % longer runtime on a single charge. The results confirm the potential of the Dextreme Max system to significantly increase energy efficiency and accelerate the electrification of large excavators.
Danfoss’ Dextreme Max system aims to cut excavator energy consumption by up to 50 % by reducing energy losses and recovering energy that would otherwise be wasted. The system’ s integral component is the DDP1X0D, a Digital Displacement ® hydraulic pump / motor with multiple independently controlled outlets. The Dextreme Max system provides independent actuator supply, eliminates flow-sharing losses, and enables energy recovery from excavator motions such as boom lowering.
In 2023, Danfoss received a grant from the Red Diesel Replacement Phase 2 Competition, a program funded through the Department for Energy Security & Net Zero’ s £ 1 billion Net Zero Innovation Portfolio, to develop and validate the Dextreme Max system. The program provided funding for projects developing low-carbon alternatives to red diesel for the construction, mining, and quarrying sectors. Danfoss used the funding to procure a battery-electric excavator and integrate its Dextreme Max system into the machine. The grant represented approximately 65 % of the eligible project costs, with Danfoss funding the remaining portion.
Danfoss selected a Develon DX300LC‐7 crawler excavator for the project. Originally diesel powered, the excavator was supplied in an electric configuration by Staad B. V., which replaced the engine with an electric drivetrain consisting of a Danfoss Editron
4 MACHINERY, AUTOMATION, CONTROL & ENGINEERING