Tag Archives: Samu Kukkonen

Normet launches new ElectroDynamic platform for higher payloads and compact dimensions

Normet has expanded its product offering, introducing both the XL platform and its latest technology innovation, the Normet ElectroDynamic® powertrain architecture, at the AusIMM Underground Operators Conference 2023 (UGOPS), in Brisbane, Australia, complementing its new high-capacity platform and paving the way to what it says is the future of more sustainable underground operations.

By combining the best features of its battery-electric Normet SmartDrive® platform and state-of-the-art low-emission engine technology, the Normet ElectroDynamic architecture allows for increased payload capacity with compact outer dimensions, while also ensuring superior driving dynamics, high performance, superb fuel efficiency and less need for maintenance, the company said.

A key element of the ElectroDynamic technology is the removal of the drive shaft and gearbox through driving the externally-cooled mining axles with permanent magnet motors in a highly efficient direct-drive configuration. This not only renders a low and compact load end design, instant torque and economical electric retardation possible, but also significantly increases component lifetime, according to Normet.

Samu Kukkonen, Technology Director at Normet, said: “As we were developing our battery-electric SmartDrive equipment, we quickly realised that we can actually remove the drive shaft and gearbox from engine-powered equipment as well. This is monumental, because now we can utilise the space where the drive shaft used to be for increased payload capacity. This was achieved by utilising electric motors at the axles, powered by a low emission engine-generator set.

“What is more, we have years of experience with all the components used in the architecture not only from our SmartDrive equipment, but also from our engine powered equipment.”

The Normet ElectroDynamic architecture also enables one-pedal driving, where the vehicle automatically controls both acceleration and deceleration with the operator’s accelerator pedal input. Additionally, its advanced front axle suspension system and the new Normet 180° cabin with improved ergonomics and visibility, Normet says, set new industry standards for operator safety and comfort.

The completely new Utimec XL ED carrier, designed for heavy-duty underground transportation applications with its payload capacity of 24 t, is included in this new XL ED offering.

Built with some of the highest-quality powertrain components and robust frame structures, all XL ED units are powered with direct-drive electric motors, Volvo Penta Stage V engines, enabling clean and efficient operation, the company says.

The first applications of the technology are the Utimec XL 1100 Agitator ED, with a practical concrete transportation capacity of 10.5 cu.m, designed for concrete transportation in underground mines and tunnels with a minimum tramming height of 3.3 m.

Tailor-made for harsh underground conditions, the vehicle is equipped with a voluminous, wear-resistant and remote-controllable concrete drum and a hydraulically-operated discharging chute, allowing for more versatile vehicle positioning. Both mixing and unloading are controlled electrically and can be operated with zero local emissions by plugging the machine into the mine’s power grid. This increases operator comfort by significantly reducing heat output and noise and by eliminating underground emissions.

The XL 1100 Agitator ED comes with a spectrum of useful features such as both front and rear support legs to ensure maximum operating stability, a form oil system to prevent concrete from adhering to the vehicle’s surfaces and a high-pressure washer with a 500-litre on-board water tank.

By eliminating the need for a drive shaft, Normet ElectroDynamic architecture allows for a high carrying capacity with compact outer dimensions, the company says

Concrete agitators are especially popular in Australia, where customers are constantly looking for innovative solutions and technologies to improve their productivity, according to Normet. However, the combination of long driving distances and high demands for vehicles’ carrying capacities has until now, posed a problem. Larger machines reduce underground traffic and make daily operation more efficient, but the size and tramming height of tunnels naturally set maximum limits for those of underground equipment, too.

Allowing for both high-capacity transportation applications and compact outer dimensions, the new XL ED offering is the ideal, purpose-built solution to this dilemma, according to Normet.

Last year, Redpath Australia representatives visited Normet’s factory in Iisalmi, Finland, to see and feel the XL ED prototype. As one of the world leaders in safety and innovations in mining practices, the company was impressed by the value the XL 1100 could provide, and Redpath has now ordered several XL 1100 Agitator EDs for its operations, set to be delivered this year.

Normet said: “We are immensely proud of the new Normet ElectroDynamic technology and the XL offering, both reflecting our passion for continuously developing innovative solutions and technologies to meet and exceed customer and industry expectations for safety, productivity and sustainability. Designed and built to minimise its environmental impact as a key driver, Normet’s broad equipment offering pioneers the transformation into greener underground operations.”

Normet makes investment in electric hammer tech start-up Lekatech

Normet has continued its investments in electrification technology with an agreement to become a minority shareholder of Finland-based startup Lekatech.

Since 2018, Normet has collaborated with Lekatech, a company that believes that direct electric drive is the future in hammering. Given the successful collaboration in electric hammer field tests between the companies, Normet has become a minority shareholder in the company.

The investment supports continued growth of Lekatech and commercialisation of its groundbreaking fully-electric hammers, Normet said.

Lekatech CEO, Antti Anttila, said: “Our goal is to zero out the CO2 emissions of impact hammers used in mining and construction industry.”

Lekatech’s ambition supports Normet’s continued progress in mining electrification. The fully-electric hammer, combined with Normet SmartDrive® battery-electric architecture, will shape the future of underground scaling and breaking, the company says.

Samu Kukkonen, Technology Director at Normet, said: “Lekatech’s technology enables a quantum leap in hammering energy efficiency and impact performance. The hammer being a digital platform enables intelligent control features that just were not possible before.”

Lekatech’s fully-electric hammer is up to 60% more efficient than a conventional hydraulic hammer providing significant energy savings while doubling impact force, the company claims. Fully-electric hammer technology also enables continuous digital development.

Tuomo Peltola, Founder of Lekatech, added: “Cooperation with Normet has been natural from the beginning. Normet really understands how to introduce high technologies to global market. I appreciate Normet’s practical and entrepreneurial culture and solid technical know-how. Normet is committed to being a technology leader in its own area of expertise.”