Marcotte’s new battery electric vehicle (BEV) technology was designed in partnership with Siemens. Siemens has extensive experience with AC drive systems for haul trucks – with over 1,000 in operation worldwide, along with a global service and support structure in place. “Our batteries are made from Lithium Titanate which are reliable, good for use in cold climates, have non-flammable electrolytes, are fast charging (10-15 minutes depending on site infrastructure) and have a long life cycle (approx 20,000 life cycles). Our entire fleet of underground utility vehicles are available with battery technology.”
The company adds: “Our BEVs use an on board and off board charging system. They are also equipped with regenerative braking technology and will feature a battery management system that is able to monitor power supply, voltage, temperature, current and more. Our new BEVs are a ‘true’ battery powertrain without the need for mechanical components. The new battery technology reduces wear on the machine and greatly extends the amount of time between routine service intervals.”
As mines go deeper underground they face challenges such as the heightened cost of cooling and ventilation systems, and they are also seeing a push to reduce emissions and diesel particulates to improve their employees’ health and wellbeing. “Mines around the world are turning to BEVs as a cost effective and practical solution to rectify these problems and are seeing a positive impact when it comes to their employees’ health and their bottom line.”
As an example of new battery equipment, Marcotte Mining’s new generation RAM40 is a standardised front carrier that is able to accommodate its entire fleet of underground utility vehicles, integrating either low horsepower, high horsepower, Tier 4 or the new Siemens battery drive package. The new RAM40 “focuses on operator safety, ease of maintenance and standardisation. The RAM40 was designed with better sightlines and increased visibility around the machine, making it safer for the operator and everyone working near the equipment. In addition, all maintenance activities can be performed from ground level, allowing easier maintenance and daily checks. A standard carrier means common parts allowing for better service and support, along with quicker build times for new capital orders.”