As already stated: one of the best videos showing a dragline in operation I have seen so far. I often asked myself how a dragline can be used to remove overburden. This video finally solves the mystery. Thank you!
My buddy does it again!! The principal of a dragline is just like scrapers, once the cutting edge (or in this case teeth) hit the dirt it never againstops until dumped at its final destination, just like a scraper!
You get an idea of how big this thing is with the shot with the Dozer behind it. I saw a dragline in operation in FL as a teenager, the drag bucket was so big, you could drive a rock truck into it. The amount of materiel it moved in an 8 hr shift was mind boggling.
And then comes a moment when you realize, that bucket wheel and bucket chain excavators of smaller size easily move double that while using less electrical power...
Ph 4100 electric shovel's will move more dirt it's just cheaper to run the dragline. Got 7 Marion's at the site I work at in qld, Australia. They'll move 120 ton of dirt on a single bucket while the shovel will do about 100. Takes 1 min for the dragline roughly to do each load while the 4100 will load our 797s in half the time. still very hugge and impressive machine, I watched a dragline slide 40m down a ramp in the rain as it was trying to move onto its new bench. Cab nearly crushed into the berm, bet ya the operators nuts would've went in the back of his throat 😂 you know it's a big girl when she makes a leibherr 9800 digger look like a puppy and the body of a dragline alone makes the big shovels look like toys. 3 massive swing motors and massive rollers on the tub. Swings very quick this video don't do it justice. Wish you could posy videos in comment section as I have some good videos sitting on the side rails while it's does its work. Old fitters I used to work with when I was coming up in my time as an apprentice told me in the 80s you'd climb up the boom to the top and do work on it while it's swinging and working still. Be sweaty gig I tell ya but obviously these days you'll never get the chance to experience that.
my old man swung one of these for years here in aus., used to go with him to work on school hols sometimes as a kid.. huge eye opener then, still is now.. pity the machine sits dormant these days, fresh off a multi million $ overhaul, then parked up 5 or 6 yr ago now :/ built back in ~1985 or so
Hi Joel I think there is either 3 or 4 of these 8200 in Australia I also did a lot of maintenance on one of these ours was White with a Red Stripe & was parked up about the time you mention. If you are who I think you are I worked with your dad.
@@OldFella547 My late Father used to make parts to repair these draglines in Australia. I remember as a young boy sometimes going in on a weekend to look in awe at the huge gears and other pieces. This was at Vickers Ruwolt in Richmond, Victoria.
That dragline leaves so much rock behind lol this machine has to stop for the dozer to rip the rock. The other dragline on this location doesn’t need that much help. When cleaning the cut
I go to a pit for work and from the distance all you can see is the tips booms moving like dinosaurs. When you get to the edge and see how deep the pit is and realize how massive the drag links are it puts things into perspective. I wonder if they will ever leave the hole they’ve created.
Another great video. Never seen a dragline video on the channel and have to say this is the BEST perspective of a dragline in operation I’ve ever seen. The sound of him slinging the material is also so well done. Lived in SoCal my Entire life and this aint’ Nowhere close! Where is this?
The video does the machine no justice at all. I had some downtime due to blasting and was invited on one of these (although I've got no idea of a model number) for about half and hour while it was working. Everything about them boggles the mind and yet that little glassed in bit on the front right is the operators cab which is smaller than a typical bathroom. Draglines have been getting bigger over the years mainly because they want to increase the depth they can dig to because the miners of old had already taken all the shallow easy to get to seams. It used to bottom out at about 100m but I guess they've increased that. The one I got onto had a crew of 5 to operate it. One operated a bulldozer preparing the ground for the draglines route. Another in a bulldozer was in charge of the power cable feed to the machine. There was an operator and relief operator so the thing never stopped and I can't remember what the last guy did. Back in the day one of these machines took about 2 years to assemble on site but still they were an incredibly efficient tool for removing over burden. That's a new machine at least to me they are using to load the trucks. Used to be the coal seams were ripped with dozers and then massive loaders loaded the trucks. Thanks for the video.
Is 100+ meters close to what a dragline can do economically? Here they have to dig down over 400 meters (1300+ feet) for lignite, but no draglines - they use bucket wheel excavators, and do it in multiple cuts to get down to depth, rather than in one giant bite. The bucketwheel excavators have a crew of three, and some technicians in the mine who work on the whole fleet, so don't really count as crew for a particular one.
Thousands left…used in strip mining all over the world. Because of EPA regulations strip mining techniques and regulations have been improved There is a RESURGENCE of the use of these machines
We hit lignite in our subex jobs and the boss would lose his shit. We’d have to chase the seam and dig it all out and replace it with good materiel as it doesn’t mix well with water or compact and would cause us to fail the soil compaction test.
Nice wide view to see what they are actually doing. On the Tan side of the screen you can see where they are removing the topsoil and subsoil, a 10-20 foot lift? I assume to place over the top of the dug out pit as part of regular operations. Then the drag line goes the rest of the way down to the coal in one massive trench. It dumps the spoil in the neighboring trench on the Grey side, which I expect is continuously leveled to receive the stripped topsoil? I wonder how much longer the seam is going to last and how big the depression is going to be.
Amazing machine. And shallow coal! Here they have to dig down over 1300 feet for lignite... open pit. That is a lot of grey dirt to move. And no draglines here either, very nice to see some quality footage of one, it's always interesting how differently the same things have to be done in different places. Thank you for the upload! :) Any chance for a long-ish in-cab video with the operator?
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I would love to swing one of those for a few hours. It's been many years since I ran a friction crane set up as a dragline. The largest bucket I think was a 3/4 yard or maybe 5/8 the crane was a Bucyrus 22B with about 40 or maybe 50 feet of boom I cannot remember now. I wonder how many cycles it would take with that 22B to fill the bucket we see here to capacity. Thanks
This machine is already a pretty big monstrosity, but Caterpillar manufactures a few bigger models, the largest of which is an 8750 dragline that can scoop up to 152 cubic yards
Caterpillar includes the Marion brand. Marion Power Shovel sold to Dresser, who spun it off again before it was subsequently bought by Bucyrus-Erie in 1997 (they also bought Terex, in 2010). Bucyrus, in turn, was acquired by Cat in 2011. The Cat 8750 is their largest dragline, matching the Bucyrus 8750.
It's just a bucyrus with a cat sticker on it lad don't be fooled. Cat bought it all out. Same with the electric rope shovel's, and even their diggers. Cat 6090 digger is just a o&k rh400 with yellow paint and cat sticker on it
You don't realize how massive this thing is till you see the motor grader in the bottom left of the screen at 2:35 and it looks like an ant crawling along.
80 yards a minute times 60, times 12. But it don't work the whole time. And probably not efficient every sshwinng. 50,000 yards? I worked a road job and we moved 30,000 a day with hoes and trucks.
Nice Rigg... Boring job, it'll make you crazy after awhile. You'll get up in the morning or what ever shift you have and go, oh no another day drag after drag. Paycheck $$$ is real good.
I’m guessing 75 to 100yrds….I worked around a 84yrd 8250…look up coal mining in Appalachian and you’ll see the job and drag….at the end there’s 12 or 13 d11s all workin the same spot…
At first look quite strange that a larger bucket is not used, looks 'microscopic' in relation to the whole machine. On the other hand it likely is totally 'maxed' concerning size
I'm from S IL and we have a lot of strip pits, love to fish New Athens(River King Mine) the last open pit mine in IL to not be reclaimed, Marissa(Red Barrel) years ago, you'll get busted now, it was open to public until Waste Management bought up a big chunk, Pyramid State park the original park is really old mines, another 19,000 acres of pits was acquired back about 12 years ago.
It doesn't look like California there, I didn't think they allowed machines like that in California anymore. My guess is a southern state. Pretty green for California.
Я проработал на шагающем драглайне 20лет, всё очень похоже и робота по вскрыше полезного ископаемого и карьер, и даже звук похож. Очень жаль, но росияне всё взорвали, всё забрала война.