US battery maker Proterra and multinational Komatsu partnered in January 2021 to develop electric mid-sized hydraulic excavators, and today they announced that Komatsu’s first 20-ton class lithium-ion battery electric machine is ready for debut.
Komatsu will officially launch the electric excavator next week at bauma2022, a construction equipment trade fair in Munich. It will be introduced to Japanese and European markets in 2023.
Mid-size hydraulic excavators are versatile machines that are mainly used for earth excavation and loading operations.
Komatsu’s new electric 20-ton machine features a power output of 123 kw and 451 kWh of battery capacity.
(Contrast that with Caterpillar announcing in January 2019 that it was building the “world’s largest” excavator: a 26-ton machine with a 300 kWh battery pack.)
The new electric excavator’s Proterra battery system, when fully charged, enabled operation of five to nine hours in the proof-of-concept tests conducted on advance research machines at customers’ construction sites. Komatsu’s components on the machine include the hydraulic pump, controller, and electric motor for work equipment operation.
The added advantage of electrifying construction equipment is that it can be used for work in urban areas and during nighttime construction work without creating noise pollution or emissions. Komatsu also notes that “the zero engine vibration will also help reduce operator fatigue.”
In addition to making batteries, Burlingame, California-based Proterra also manufactures electric buses and drive trains and chargers for heavy-duty commercial vehicles.
Proterra is going to get some competition from Tesla, which announced on October 6 that its Tesla Semi has gone into production and that Pepsi is going to get the first electric trucks starting December 1.
The Motley Fool reported on October 14 that “Proterra shipped battery systems for 348 vehicles in the third quarter, a jump of more than 1,000% compared to the year-ago quarter.”
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Following approval from Transport Canada, EV startup Workhorse will be bringing the W56 and W750 model electric delivery vans to commercial truck dealers in Canada as early as this spring.
“This is a major step forward for Workhorse,” says Josh Anderson, Workhorse’s chief technology officer in a press statement. “Pre-clearance from Transport Canada opens up a large new market for our products throughout Canada, including with fleets that operate across borders in North America.”
Despite that uncertainty, Workhorse execs remain upbeat. “We’re excited that our electric step vans can now reach Canadian roads and highways, providing reliable, zero-emission solutions that customers can depend on,” added Anderson.
Canadian pricing has yet to be announced.
Electrek’s Take
FedEx electric delivery vehicle; via Workhorse.
There’s no other way to say it: the Trump/Musk co-presidency is disrupting a lot of companies’ plans – and that’s especially true across North American borders. But in all this chaos and turmoil there undoubtedly lies opportunity, and it will be interesting to see who ends up on top.
The new Liebherr S1 Vision 140-ton hauler is unlike any heavy haul truck currently on the market – primarily because the giant, self-propelled, single-axle autonomous bucket doesn’t look anything like any truck you’ve ever seen.
Liebherr says its latest heavy equipment concept was born from a desire to rethink truck design with a focus only on core functions. The resulting S1 Vision is primarily just a single axle with two powerful electric motors sending power to a pair of massive airless tires designed carry loads up to 131 tonnes (just over 140 tons).
The design enables rapid maintenance, as important components easily accessible for quick servicing. Wear parts can be replaced efficiently, and the electric drive significantly reduces maintenance work. This helps to minimise downtimes and increases operational efficiency.
LIEBHERR
Because of its versatility, durability, and ability to perform zero-turn maneuvers that other equipment simply can’t, the Liebherr S1 Vision can be adapted for various applications, including earthmoving, mining, and even agriculture. There’s also a nonzero chance of this technology finding applications supporting other on-site equipment through charging or fuel delivery.
The S1 accomplishes that trick safely with the help of an automatic load leveling system that ensures maximum stability, even on bumpy or rough terrain. The company says this technology significantly reduces the risk of tipping while providing smooth and secure operation across various environments.
The HD arm of Hyundai has just released the first official images of the new, battery-electric HX19e mini excavator – the first ever production electric excavator from the global South Korean manufacturer.
The HX19e will be the first all-electric asset to enter series production at Hyundai Construction Equipment, with manufacturing set to begin this April.
The new HX19e will be offered with either a 32 kWh or 40 kWh li-ion battery pack – which, according to Hyundai, is nearly double the capacity offered by its nearest competitor (pretty sure that’s not correct –Ed.). The 40kWh battery allows for up to 6 hours and 40 minutes of continuous operation between charges, with a break time top-up on delivering full shift usability.
Those batteries send power to a 13 kW (17.5 hp) electric motor that drives an open-center hydraulic system. Hyundai claims the system delivers job site performance that is at least equal to, if not better than, that of its diesel-powered HX19A mini excavator.
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To that end, the Hyundai XH19e offers the same 16 kN bucket breakout force and a slightly higher 9.4 kN (just over 2100 lb-ft) dipper arm breakout force. The maximum digging depth is 7.6 feet, and the maximum digging reach is 12.9 feet. Hyundai will offer the new electric excavator with just four selectable options:
enclosed cab vs. open canopy
32 or 40 kWh battery capacity
All HX19es will ship with a high standard specification that includes safety valves on the main boom, dipper arm, and dozer blade hydraulic cylinders, as well as two-way auxiliary hydraulic piping allows the machine to be used with a range of commercially available implements. The hydraulics needed to operate a quick coupler, LED booms lights, rotating beacons, an MP3 radio with USB connectivity, and an operator’s seat with mechanical suspension are also standard.
HX19e electric mini excavator; via Hyundai Construction Equipment.
The ability to operate indoors, underground, or in environments like zoos and hospitals were keeping noise levels down is of critical importance to the success of an operation makes electric equipment assets like these coming from Hyundai a must-have for fleet operators and construction crews that hope to remain competitive in the face of ever-increasing noise regulations. The fact that these are cleaner, safer, and cheaper to operate is just icing on that cake.