Tag Archives: 930E-5

Komatsu commissions Australia’s first Tier 4 Final ultra-class haul truck

In an Australia first, Komatsu has commissioned the inaugural Tier 4 Final version of its 930E-5 ultra-class mining truck in Australia.

The commissioning is part of the company’s commitment to designing and manufacturing mining equipment that, it says, advances its corporate social responsibility aims while embracing UN Sustainable Development Goals.

This latest factory-designed emission control technology solution, which meets the most stringent North America and EU emissions regulations, has been adopted by Komatsu Australia to meet a client’s specific operational needs, the company said.

“Komatsu has a strong commitment to environmental best practice, with a continuous focus on reducing our environmental impacts and our carbon footprint,” Jason Arthur, Komatsu’s National Product Manager – Mining, said.

“Our ongoing research and development efforts include developing new products that significantly reduce fuel consumption as well as greenhouse gas emissions.”

Komatsu’s Tier 4 Final compliant, 290-t payload 930E-5 incorporates on-board after-treatment system that significantly reduces the Scope 1 emissions produced during the haulage process at mines, the company says.

These emissions are an unavoidable by-product of the high temperature combustion process in the diesel engines that power most mining equipment, Arthur explained.

“This emission reduction technology is an option that now can be incorporated into Komatsu’s class leading 930E-5 model,” he said. “To achieve this, Komatsu worked with our large horsepower engine partner Cummins to provide a simple, low maintenance solution to meet Tier 4 Final emissions requirements.”

The Cummins-sourced engine treats particulate matter in the engine cylinders through an advanced high-pressure fuel injection control system to reduce PM 2.5 by 80% (compared with Tier 2 engine levels). In turn, the nitrogen oxide greenhouse gas emissions are treated out of cylinder through a selective catalytic reduction (SCR) after-treatment process.

This modular SCR system consists of an airless diesel exhaust fluid (DEF) dosing system and features an integrated decomposition chamber with a maintenance strategy that aligns with the life of the engine. The SCR units are contained within the truck’s rear-exiting exhaust system.

Komatsu’s use of the flow-through exhaust aftertreatment system delivers ultra-low emissions while increasing fuel efficiency without increasing backpressure, according to the company.

Critical engine parameters are monitored by the integrated engine management system to ensure optimised DEF consumption, Arthur said.

Tier 4 emission technology is a small portion of Komatsu’s overall emission reduction strategy, with the company continuing to actively invest in research and development projects that focus on reducing customers’ Scope 1 emissions and using alternate energy sources, the company said.

In addition to meeting the technology challenges in developing a Tier 4 Final compliant version of the 930E-5, the customer also requested Komatsu provide a truck with significantly lower noise emission levels.

“Our US-based Komatsu Engineering team became intimately involved and created a factory-engineered sound suppression solution that would meet our customer’s requirements,” Arthur said. “These factory-designed sound treatments more than halved the standard truck’s emitted sound power levels, resulting in a target sound power level of less than 113 dBA.

“Successfully achieving these sound levels was a very challenging undertaking for a large mining truck powered by an engine with an output of 2,700 hp (2,014 kW).”

Boliden Kevitsa takes delivery of first EU-Stage-V-compliant Komatsu haul truck

Boliden has received the first haul trucks from Komatsu as part of its investment in a new truck fleet at its Kevitsa (Finland) and Aitik (Sweden) open-pit base metal operations.

The delivery marks the entry of Komatsu electric dump trucks into the European market, according to the miner.

For Kevitsa, 17 Komatsu 830E-5 haul trucks will be delivered until January of 2020, with nine Komatsu 930E-5 haul trucks being delivered to Aitik until April 2020.

The new trucks are the first EU Stage-V haul trucks within Boliden’s fleet, significantly reducing diesel exhaust emissions, the company said. They will also provide improvements in operator environment and safety, Boliden added.

The Komatsu 830E-5 haul trucks have a 220 t payload and will replace the current truck fleet at Kevitsa, reducing the mine’s production cost, Boliden said. To further increase efficiency and productivity, the trucks will be equipped with dispatch and maintenance systems from Modular Mining to enable optimised production and tracking as well as fleet maintenance support, the company said.

Boliden mentioned the purchase of trucks back in October during its September quarter results, saying it had reached agreement with Komatsu regarding an investment totalling some SEK 900 million ($96 million). At the time, the company said all of the trucks were equipped for future electrification; an important point considering the trolley assist trial ongoing at Aitik.

To mark the delivery milestone of the first truck, a handover ceremony was arranged in Kevitsa on July 10.

During the event, strategies and technical solutions were presented by executives such as Boliden President and CEO, Mikael Staffas, and Managing Director and CEO of Komatsu Europe, Masatoshi Morishita.

Mikael Staffas said: “This is an important step in the development of our open-pit mines while improving our environmental performance from an already strong position. This [is], not least, because we now create opportunities for increased electrification and related productivity development.”

Masatoshi Morishita says: “Today is a milestone for Komatsu Europe. With the delivery of first CE-certified Electric Dump Trucks to Boliden, Komatsu can offer a full line-up of mining products and solutions in Europe as well. We aim this will only be the start.”