LOAD & HAUL
MineStar system capabilities through the use of improved high-precision tracking and wireless communications, task management technology and proximity detection. Newmont Mining will host the fi rst trial of this technology at its Tanami Operations in Northern Territory, Australia. In other company news, in March
2018, Peabody ordered a longwall mining system for its North Goonyella Mine in central Queensland, Australia. T e system includes roof supports and a face conveyor for a 300m face, shearer and beam stage loader. Delivery is scheduled for the second quarter of 2019. In R&D news, the battery electric R1300G proof-of-concept machine has started shovelling muck in Canada. It’s not meant to be something designed to go to market; more an exercise in packaging and performance of a lithium-based energy storage solution. Jay Armburger, product manager with responsibility for underground
UNDERGROUND ENGINEERING C
aterpillar’s latest
addition to its underground mining range is also its smallest. The articulated AD22 employs Cat’s 242kW (325hp) C11 ACERT diesel engine and off ers a variety of body size options, an open or enclosed cab and a full colour LCD screen coupled to a rear-view camera. Meanwhile, Atlas Copco is currently undergoing a
Cat AD22 Underground Truck in mine
rebrand and in future will be called Epiroc. Its latest addition to the underground range is the Minetruck MT54. This comes with a Rig Control System, it’s
technology, says, “Our customers are planning for deeper mines with very high ambient rock temperatures where ventilation costs are pivotal to making the mine viable. One means of reducing ventilation demand is through electrifi cation of equipment.” T e design uses a battery electric
powertrain driving a conventional mechanical drivetrain, with no load sensing electro-hydraulics. T is arrangement was chosen deliberately to drain the battery system faster. T e company states, “T e less refi ned proof of concept machine will yield solid understanding of heat generation and cooling needs, performance criteria, space claim and safety considerations in the day-to-day operation of the machine.” A unique charging system is being
developed in tandem with the project. Caterpillar has been interested in electric power for over a decade. In the current range, the most recent wheel loader is the fi rst to feature switched reluctance (SR) technology. T e 988K
ready for automation and can be equipped with the telematics system Certiq, which gathers and compiles data to help optimise operations and plan
maintenance. It is designed for a 54 tonne load capacity and features higher ramp speeds than its predecessor, the MT5020. ●
www.engineerlive.com 19
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
