Komatsu launches first ever electric drilling, bolting rigs
Komatsu just launched its first-ever electric underground drilling and bolting rigs, signaling a new beginning for the Japanese construction giant’s hard rock mining portfolio.
Part of a broader range of updates and options for the second-generation of Komatsu‘s Z2 line of small-class development drill and bolting equipment that includes an innovative resin-pumping system, optimized cabin ergonomics for the operator, and more advanced telematics, the all-electric versions of the Komatsu ZJ21 jumbo drill and ZB21 are (like their predecessors) built on a common platform. That platform features a modular battery driveline that’s been specially designed to withstand the demanding duty cycles and challenging of hard rock mining.
“As underground mining operations increasingly shift toward electrification of their fleets, our innovative, battery-powered Z2 jumbo drills and bolters will support that pivotal transition. By integrating into existing infrastructure, we can help enhance productivity while helping to reduce operating costs,” said Johan Kempe, product director for underground drilling at Komatsu. “The rollout of our second generation Z2-class marks a milestone in our commitment to advancing mining technologies and building upon the proven success of our products to empower the future of mine operators.”
ZB21 bolter
The new Komatsu ZB21 is a small-class bolter featuring a fully enclosed ROPS/FOPS-certified operator cabin with updated operator controls, integrated screen handling, and industry-leading drifters manufactured by Montabert.
The second-generation bolter also introduces an optional pumpable resin system using J-LOK P developed by Jennmar. Komatsu says this unique solution pumps into the drilled hole prior to bolt installation, permitting the use of more economical (read: cheaper) bolts and driving down overall project cost.
ZJ21 electric drill
The updated ZJ21 jumbo drill, which shares a number of modular components with the ZB21, features a similar operator cabin, innovative drilling feeds, advanced pilot hydraulics, and the same, new Montabert drifters.
Both vehicles feature an 83 kWh li-ion battery pack presumably developed in concert with American Battery Solutions (ABS), which Komatsu acquired late last year. That purchase was part of a company-wide effort to help Komatsu achieve its stated ESG goals. Those being: a 50% reduction of CO2 emissions from the use of its products by 2030 (compared to 2010 levels) and company-wide carbon neutrality by 2050.
Electrek’s Take
Komatsu says its BEVs are designed to increase productivity compared to diesel through a mix of onboard charging, smart opportunistic charging capabilities, and 100% compatibility with existing infrastructure (translation: your accessories will fit). As for whether or not its new EVs will deliver – well, it’s hard to argue with Komatsu engineers. They’re smart, they’ve done the math, and they’ve built lithium-powered EVs specifically to mine for more lithium (again: smart).
Here’s hoping we get to read about more EVs from Komatsu sooner than later, then.
SOURCE | IMAGES: KOMATSU.
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China just laid out a plan to roll out over 100,000 ultra-fast EV charging stations by 2027 – and they’ll all be open to the public.
The National Development and Reform Commission’s (NDRC) joint notice, issued on Monday, asks local authorities to put together construction plans for highway service areas and prioritize the ones that see 40% or more usage during holiday travel rushes.
The NDRC notes that China’s ultra-fast EV charging infrastructure needs upgrading as more 800V EVs hit the road. Those high-voltage platforms can handle super-fast charging in as little as 10 to 30 minutes, but only if the charging hardware is up to speed.
China had 31.4 million EVs on the road at the end of 2024 – nearly 9% of the country’s total vehicle fleet. But charging access is still catching up. As of May 2025, there were 14.4 million charging points, or roughly 1 for every 2.2 EVs.
To keep the grid running smoothly, China wants new chargers to be smart, with dynamic pricing to incentivize off-peak charging and solar and storage to power the charging stations.
To make the business side work, the government is pushing for 10-year leases for charging station operators, and it’s backing the buildout with local government bonds.
The NDRC emphasized that the DC fast chargers built will be open to the public. This is a big deal because a lot of fast chargers in China aren’t. For example, BYD’s new megawatt chargers aren’t open to third-party vehicles.
As of September 2024, China had expanded its charging infrastructure to 11.4 million EV chargers, but only 3.3 million were public.
Read more: California now has nearly 50% more EV chargers than gas nozzles
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Tesla is starting to experience some consequences for misleading Full Self Driving customers – at least that’s the finding of one arbitration ruling that has Tesla refunding one customer $10,000 plus legal fees for failing to deliver on their promises. Find out more on today’s legally challenging episode of Quick Charge!
An arbitration “court” found that Tesla misled customers with its Full Self Driving product, and has now been forced to refund at least one person’s $10,000 payment (plus legal fees) for the not-quite autonomous driving software. France, too, is piling on claims of deceptive business practices – but there’s some good news for FSD fans! If you’re still willing to pay for it, Tesla will thrown in 0% financing on a brand new Cybertruck.
Check out the relevant links, below, to learn more.
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