World's first MT54 makes its way to GFM

George Fisher Mine will began operating the world's first 54 tonne Epiroc underground truck in September 2018.

The MT54 truck is capable of carrying an extra 9 tonnes per load but with similar sizing to the current 45 tonne trucks, it is perfectly suited to George Fisher Mine.

The MT54 has two easily interchangeable body types - Dump & Ejector Body – and is capable of hauling ore with the dump body or waste with the ejector body.

Other benefits for George Fisher Mine include commonality of parts between George Fisher Mine's current Epiroc MT65 & MT6020 fleet.

The underground truck was unveiled at the AusIMM conference in Cloncurry.

Ernest Henry Mining awarded best presentation at AusIMM conference

In August, Cloncurry hosted the Australasian Institute of Mining and Metallurgy's (AusIMM) North West Queensland Branch annual conference.

Employees from across our North West Queensland operations attended, with our people from Mount Isa Mines (MIM) and Ernest Henry Mining (EHM) presenting at the conference.

Mining Engineer James Bartlett and Senior Planning Engineer Peter Nichols from EHM were awarded best presentation for 'Going back to the future: escape way breakthrough case study and ore pass grizzly performance review'.

Escape ways are alternative exits from the mine, fitted with ladders and infrastructure fundamental for evacuation in an emergency.

They also serve a secondary purpose housing vital pipes and cables for power, or are used as fresh air access points.

A case study was done at EHM to determine the best methods for developing new escape ways on each new production level, maximising utility while minimising development costs.

The presentation also outlined how we improved the longevity of our grizzlies, the large steel grates that screen our larger pieces of rock that cause damage to the ore pass.

Pete Nichols, Senior Planning Engineer EHM says that our previous grizzly design was not adequately robust, becoming damaged to the point they were unusable.

"Damaged grizzlies create a safety risk, reduce production and are costly to rebuild. So we set about designing a grizzly that would match the life of the level," Pete says.

"After a review, we have implemented changes to the design that mean our grizzlies now last the service life of the level, reducing maintenance cost and reducing inefficient downtime."