Archive for October, 2010

Allison powering massive road trains

Thursday, October 21st, 2010


Gulf Transport and Powertrans use Allison transmissions to help provide more efficient ore transport for Fortescue Metals in Australia’s rugged Pilbara.

CLOUDBREAK MINE-PILBARA, WESTERN AUSTRALIA:Â Specialist Australian heavy vehicle manufacturer, Powertrans has had success using Allison automatic transmissions in developing some of the world’s biggest road trains to enable Gulf Transport to fulfil a demanding ore transport contract at one of the biggest iron ore mines located in the booming Pilbara region of North Western Australia.

The Powertrans ‘powered’ road trains feature a specially designed and built heavy-duty prime mover or tractor unit and up to six trailers with as many as two of the trailers equipped with an identical engine and an Allison transmission as the prime mover.
These massive road trains have been hauling more than 500 tonnes of iron ore at a time over a 52 kilometre haul road between the Fortescue Christmas Creek operation and the company’s Cloudbreak mine and loading facility. In its largest configuration with two powered trailers, four passive trailers and a full load of iron ore, the giant rig, including the prime mover, tips the scales at more than 750 tonnes.

These vehicles have been doing this work reliably and safely in temperatures often exceeding 50 degrees Celsius, largely due to the ability of Allison’s M6610 six-speed automatic to handle the power and torque from the 760 horsepower Cummins QSK19 electronically managed 19-litre turbo diesel engines.