The addition of the walking dragline
allowed Usibelli to ramp up production in the 1980s and is an integral part of today's operations, Brophy says.
The scraper fleet was also used to form the level base which was used for the erection of the mine's massive 3,600 t, 50 [m.sup.3] bucket capacity P&H Page walking dragline
. The total machine power of this unit is 11,689 kW; the largest of its type working in Western Europe.
A 1300W Bucyrus-Erie Walking Dragline
, nicknamed "Ace-in-the-Hole" by Healy school children, removes the bulk of the overburden, while dozers move overburden short distances or from locations difficult for the dragline to access.
Industrial auctioneers IronPlanet has beaten its sales record for the most expensive machine, by selling a Marion 7820 Walking Dragline
Then there was the time when he travelled around to places like Dublin to play in chess tournaments, and the time when he went to Leningrad, and the period when there was opencast mining just behind our bungalow in Abernant, and he would follow in the wake of the "walking dragline
", looking for fossils in the newly exposed deposits.
Mr Marvell, 72, read our story about the birth of Britain's biggest walking dragline
excavator and the team of shipyard specialists who made the platform on which it stood.
ft of manufacturing space, Bucyrus manufactures walking draglines
, electric mining shovels and/or rotary blast hole drills.
Three walking draglines
, expected to begin digging by 2001 at Coal India Ltd.'s Dudhichua and Nigahi mines, will use General Electric motor-generator sets for powering drag, hoist, and swing motions.
At its Mildred Lake mine, Syncrude uses two 8750 walking draglines
made by Marion Power Shovel, and two 2750 walking draglines
made by Marion's parent company, Bucyrus International Inc.
have had to consider new mining concepts, as the large walking draglines
currently used for overburden stripping run into rehandling problems because of their limited working range and excavating depth.
The Australian black coal industry uses some 60 walking draglines
to uncover around 35% of all black coal mined.