Africa|Building|Business|Design|Electra Mining|electrification|Energy|Flow|Mining|Power|Sandvik|Systems|Technology|Testing|Underground|Equipment|Flow|Infrastructure|Operations
Africa|Building|Business|Design|Electra Mining|electrification|Energy|Flow|Mining|Power|Sandvik|Systems|Technology|Testing|Underground|Equipment|Flow|Infrastructure|Operations

Sandvik launches zero-emission battery-electric underground mining truck in Africa

The Sandvik TH665B is unveiled at Electra Mining

Photo by Creamer Media's Tasneem Bulbulia

The charger

Photo by Creamer Media's Tasneem Bulbulia

The battery

Photo by Creamer Media's Tasneem Bulbulia

6th September 2022

By: Tasneem Bulbulia

Senior Contributing Editor Online


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Original-equipment manufacturer Sandvik on September 5 officially unveiled its 65-t-capacity zero-emission battery-electric truck, the Sandvik TH665B, at Electra Mining Africa in Johannesburg.

The group notes that this is the world’s largest-capacity battery-electric truck for underground mining.

It will enable miners to have a fleet of vehicles with zero emissions, enable a greater workload per tonne and engender better power on an incline.

Testing on the machine is under way and almost complete in Australia.

Speaking at the launch, Sandvik VP Jakob Rutqvist said Australia and Africa were likely to be the biggest markets for this machine.

He added that Africa was especially suited towards electrification, because diesel was relatively expensive in many countries on the continent and Africa was host to many hot, deep, ventilation-constrained mines, which made the battery electric vehicle (BEV) business case stronger.

Rutqvist explained that the truck, when in operation, generated about 85% less heat than a diesel truck, which helped considerably if the mine was ventilation-constrained.

He said Sandvik was at the forefront of electrification in the underground mining industry, poised to meet the needs of many companies’ commitments to net zero over the next several years.

He pointed out that in an average underground mine, 50% to 60% of emissions came from the mobile fleet, with considerable amounts from the primary haulage equipment; therefore, electrifying this made a big difference.

“Sandvik is very proud to be introducing the world’s largest underground truck and very happy to be doing that in Africa,” Rutqvist said.

He outlined that the truck would remove between 1 t and 2 t a day of carbon dioxide (CO2) when in operation; therefore, the impact would be “quite significant”.

In terms of the design principles for the truck, Rutqvist said Sandvik adhered to three main ones when developing the truck.  

Firstly, it was aligned to its mandate of “rethinking the machine, not the mine”.

The group did not want to introduce technology that requires customers to redesign their operation and undertake considerable infrastructure investments. In this vein, Rutqvist said the truck could be very easily implemented at an existing operation and maintained with existing infrastructure.

Moreover, the machine boasts battery swapping technology. It does not require any big fixed infrastructure to turn on, nor would the operator need to exit the cabin to handle the battery. Rather, the battery swap is fully automated.

There is also a charging setup for this machine, which is 100% mobile and does not require extra ventilation on the mine, with existing capacity generally enough, Rutqvist explained. 

In terms of the battery swapping technology, one battery is on the machine while it is in operation, while the other is charging, which Rutqvist said reduced the peak stress on the grid. 

He outlined that, when the machine was doing very heavy work, on a steep ramp, it had about an hour and a half to two hours of runtime. Work on a level that does not require as much energy, would enable about two and half to three hours before requiring the battery to be swapped, which takes about five minutes.

The second design principle is that the truck needs to be fit for mining. The battery is rugged with safe chemistry, Rutqvist said, adding that the machine and battery had been designed to handle the terrain of mining operations.

The battery had also been specifically designed for mining and mining needs, Rutqvist said, rather than repurposing other battery technology. Moreover, both the machine and battery were designed with serviceability in mind, with easy accessibility, to allow these to be serviced on the mine.

The last design principle was to “expect more”, highlighted Rutqvist.

“We haven't compromised anything, we're not expecting customers to accept lower performance, just because you want to lower emissions,” he averred.

Therefore, he outlined that it was an extremely high-performing machine, generating about 20% more power than a conventional machine, which translates to about 20% to 30% faster speeds.

The machine was also able to slow down and speed up quickly, which meant that the overall movement or flow in the mine increased considerable, noted Rutqvist.

Moreover, he said operator comfort had also not been compromised on.

The machine also has technology such as collision avoidance systems and digital prompts. Also, Rutqvist noted that data gleaned from the machine would be analysed by the group’s newly acquired battery analysing company, which would, in future, enable better understanding of elements such as battery performance and life.

“We are not making any compromises from a performance point of view, but we are building this for real application, for real world use,” Rutqvist enthused.

Meanwhile, miner South Deep would be taking delivery of the first Sandvik LH518B later this year.

Edited by Chanel de Bruyn
Creamer Media Senior Deputy Editor Online



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