Check out this MEGA DOZER

Just saw an ad for this critter in an issue of one of the equipment mags I get and thougth I'd post a link to a similar add for the machine that was printed in Rock and Dirt. I haven't been able to find much on it online as far as specs, etc go, beyond this add to know anything else about it. Still, just what it tells about it in the add is amazing. I mean a dozer with around 8000 HP and the capability to push 450 Cubic yards is in a class all by itself. Looking at it it really looks like a locomotive on tracks with a blade and ripper attached. One thing I can say for sure about it, as impressive as something like a D9G is to watch in operation, I'd love to see one like this pushing or ripping sometime.
SD600TX in Rock and Dirt

I'm sure I can't afford it, because I have to ask. LOL
One impressive machine though!

Where I live somebody would try to haul it with their 1 ton and gooseneck.

Runs on micronized coal. Never heard of it. Is that like a flowable coal dust or something?

It's gonna have to snow a LOT more to need one of those. Does it have electric start I wonder? lol

No legitimate company uses gmail accounts these days. Not exactly sure what they're selling, but the lack of a photograph or even a credible line drawing tells me they've never actually built one of these beasts.

(quoted from post at 06:54:52 01/03/13) No legitimate company uses gmail accounts these days. Not exactly sure what they're selling, but the lack of a photograph or even a credible line drawing tells me they've never actually built one of these beasts.

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+1

Nothing comes up on Google for U.S. International.

Gene

Coal dust is extremely explosive!
Rudolph Diesel"s first engine ran on Coal Dust!

not buying it, obviously based on a railroad locomotive the machine would be top heavy in real use, and im not sure the tracks as drawn would support the weight of the machine, ill retract my opinion when somebody shows me one of these actually at work , for shear size the cat d11 r is about as big as praticle

It looks like it would have to be on fairly level ground to maintain traction to the four tracks, but on the other hand, it could probably do a pretty good job of leveling the terrain itself.

I hate links that take you to a captive site, with no easy return!

im also assuming there still using the locomotives diesel/ electric drive setup, works just fine for the railroads,[ would work fine in a car too] but im betting if built and actually pushing dirt it would have serious overheating problems due to no or almost no airflow over the machine, also electric drive motors on the tracks would have really bad things happen to them if used in a dozer application if you watch a big dozer work the dirt, in a hard push, or ripping hard ground, the tracks can spin down into the dirt, that will ruin an electric motor i watch big dozers every day at work as well as run them occasionally when needed to , still want to see a real one of these if they exist wonder it this is a design of somebody who has never run a dozer

If it would work from a technical standpoint there are still a bunch of problems.
-Most large dozers are sold in international markets, an extensive dealer network with trained technicians, etc. would be required.
-How big is the worldwide market for a dozer of this size? Rumor has it Cat has a D12 designed on paper/computer but thus far has not seen the market for it.
-The first working prototype would cost tens of millions of dollars. This would be huge undertaking, especially when you think about the concerns others have raised.

Just a bit of info for you in the realm of electric driven equipment. Back in the 60's and 70's Letourno has scrapers that were electrically driven. They pretty much outran the technology and the mechanics hated them so they didn't last very long. Even so, in the realm of the more specialized equipment, the largesr mining haul trucks, and by that I mean those that routinely haul in the 400 ton plus range are electrically driven, and have been for many years. Like most locomotives the engine drives a generator that in turn drives the traction motors at each drive wheel. The latest thing I know of in the electric drive, at least for a complete machine, is CAT's new D7. It also has an engine driving a generator that in turn drives a traction motor coupled to each track. The majority of the rest of the machine is also electrically driven from the engine cooling fan to the HVAC system for the cab. Taking thigs even further mfgs like Komatsu now have hybrid machines that use regenerative braking, etc to supply power to electric motors to assist in with swinging the machine.

In other words electrically driven equipment has been around for a long time. Wether it lasts in the smaller equipment or not is yet to be seen as it presents alot of technological as well as training issues that have to be overcome when it comes to troubleshooting them -vs- a normal hydraulic or mechanically driven machine. Still in the larger, specialized equipment it has been and will ocntinue to be around for a long time because there is simply no other drive system as efficient as diesel electric.

some of the newer d-7's are electric also, my concern with this design here , if built using the locomotives drive system to power the tracks, is that its a low track model, which in this application would mean the electric motors are going to be getting a huge amount of dust, mud, and debris in and around them im thinking longevity might be an issue, the electric d-7's are high tracks and the motors are up out of the mess

Always wanted to see something like that in action myself. Or one of those huge trucks that haul mine ore that have to be assembled on-site. I had never heard of "micronized coal", so I Googled it. Very interesting, may be a "fuel of the future". Thanks, Wayne, for posting that.

Most powerful dozer ever made was for Western Contracting. The Western 2000 rubber tire push dozer was designed to push load scrapers in 90 seconds! It was diesel electric drive and worked from 1963 till 1981. It was 2000 HP! Diesel electric drive for earthmoving machinery is nothing new. I think the link posted would be a joke. When crawler dozers get too big, they are a nightmare to keep working and have a very small market. That's why Cat never went after the Komatsu 575 Super dozer market.

You need to do some more research on electric drive earthmovers. They can work in any application conventional equipment would.

Komatsu makes a machine almost twice the capacity of a D11. Too small of market for Cat to go that big.