Yanmar has just revealed an incredible new prototype electric work machine featuring “advanced force control technology” capable of tackling tasks in challenging environments, including disaster sites and possibly even the moon! This cab-less prototype machine is based on Yanmar’s Vi025 mini excavator.
One of the most exciting features is the successful implementation of force control capabilities, a significant challenge for traditional hydraulic systems. This was achieved using a large series elastic actuator (SEA) made up of an electric motor, reducer, and spring, which can be mounted on construction equipment. The goal of this technology is to automate delicate manual tasks on construction sites to help combat the labor shortage.
Moreover, the prototype also boasts an articulated motor, not a conventional electric cylinder, allowing for a broader range of motion through electrification. This innovation enables the machine to perform high-altitude work like ceiling operations.
From left: The large Series Elastic Actuator (SEA) developed in cooperation with JAXA; Realizing an expanded range of motion through the adoption of joint motors.Yanmar
Yanmar intends to carry out further testing on the prototype to determine its practical applications for the next-generation work machine.
It is worth mentioning that Yanmar developed the SEA in collaboration with JAXA’s Space Exploration Innovation Hub Center as part of the Moonshot Research and Development Program. The prototype made its debut at the Construction DX Challenge 2023, organized by the Japanese Ministry of Land, Infrastructure, Transport, and Tourism.
This innovative project is in line with Yanmar’s Green Challenge 2050 goal of “contributing to customers’ decarbonization efforts through ongoing developments in electrification and other forward-looking technologies.”
Quick Specs
- Name: Next-generation work machine prototype with force control function
- Base machine: Yanmar Vi025 mini excavator
- Weight: 3-metric-ton class
- Rated load during lifting: 460 pounds
- Operating range: 210 degrees
- Emissions: Zero emissions
