BigIron Melroe M870 Buffalo Coal Dozer 

People are quick to make assumptions. I spent a fair amount of time running an 880 multiwheel with a 45 yd U blade at the sweetwater uranium mill by Rawlins Wyoming in 2000. The machine was rather cumbersome, it required special techniques to steer it, as opposed to a track type dozer. It was a skid steer, but due to its size and weight, similar to a D11 cat, it didnt skid as well as expected, hence the techniques to steer it. But it was no slouch pushing. It could push that 45 yd U blade with full loads in 2nd gear with relative ease. We always pushed in second because it tended to break axles once in awhile when pushing in 1st. Repair was simple as they were floating axles, provided you had replacements. It was not as good of an all around dozer as a crawler, but it worked pretty well in fill and dump sites, or coal poles where you leveled and packed materials. It wasn't the best dozer ever, but it could definitely push.

Never seen anything like that before. Awesome.. love old American heavy equipment

I a like how that little bugger goes forward and then later on it reverses very good and with stunning power.

That thing creates its own weather patterns

Hey guys thsi video does really give you the true sense of how big this machine really is, trust me its an extremely LARGE unit. It was a custom build engineered by a fellow named Sill Melroe out of Gwinner ND and I believe it was used primarily at he Kotuo coal power plant N of Bismarck and it was used with great success for many years, I know the engines have been rebuilt or replaced at least twice very possibly more times. I know when I first looked at and sat in the cab of this machine my thoughts were like some of yours, what a pile of crap, but after a bit more research at THE TIME this machine could move more coal than any other piece of equipment on site and it was that way for close to 9 years. When it was retired North American Coal Corporation donated the machine to Bonanza Ville in West Fargo ND and that is where it sits now!!

Man this is an awesome powerful machine! Never seen one that looks like this

I help build seven pf those machine's back in 1978.First time seeing it run. Always wondered what happened to them.

An engineer by the name of Fay Garner at Melroe Muti-Wheel in Longmont Colorado was the brain child behind this machine.

I think it roals more coal than it could push!

Putz,aí sim e máquina,olha o ronco do motor, top 🇧🇷🇧🇷🇧🇷😎

I like this beast to add to my Tonka collection

That's one big bobcat ;) :)

There used to be a piece of equipment with 8 wheels like this on the South side of Nashville, TN. I saw it back in the 1980s. It had no blade or ripper and I never knew what it was for. I thought at the time it might have been used by the railroad since it was close to the CSX tracks.

How many tires do you change when turning?

As is often the case with YT videos, the operator doesn't have a clue. I would love to see this in the hands of someone capable of giving it a real workout!

That thing is cool but that was painful to watch.

Would make one hell of a snow pusher though

Looks like the driver's dad was coming home soon and just went back and forth to prove a point.

First time seeing one of these what in the hell, what a unit.

What was this machine built for?

Also, the machine is bi-directional and you can mount the implements at either end. The 880 in Rawlins had the 45 yd U blade at one end, and a cushion blade at the other. Later they brought out a 28 ft wide, 6 way blade. I tried to talk them into swapping it with the cushion blade, which we weren't using, so we could doze in both directions. We were doing reclamation, hauling dirt into the fill with huge belly dumps hauling 120 yes at a time. The dozer was just leveling and packing the loads. I thought it would work well, dozing in both directions in that scenario, instead of backing up for each push, besides giving the dozer the versatility of a functional u blade at one end and a 6 way angle at the other, but the bosses couldn't grasp that concept. There is a video on u-tube showing an 880 pushing, just put in 880 multi wheel.

Wow Big machine Quite a wheel horse Looks as if checking controls to verify everything functions

Looks like a cross between a dozer, grader and loader with a bit of snow plow and bicycle thrown in.

Looks like a mad max vehicle

Cabin look like air trafic control tower😉

Looks like the wheelhouse off a tugboat!

Okay now I get it, there's a link from the selling page. I have seen these and they are HUGE beyond the small screen's ability to envision.

I have see pictures of these but have not seen a video of one operating. I like the design in that the operator would have good visibility of the work area.

I know that its probably too late to ask but is this for sale still?

amazing machine

Looks like a reasonable design, why not? I guess it pushes coal relatively long distances, no need for sharp turns.

Maybe a stupid question but how does it turn around at curves? Like a tank?

A good feature for a sci-fi film

Well, it's not exactly nippy, is it! But very interesting to see a giant skid steer wheeled vehicle.

Like a terex dozer 2 engines running different sides

I love this thing

Stuff nightmares are made of ... awesome

Sounds and runs a bit Off.. This machine when new back in it's day would have moved My. Everest....👍👍👍

Looks like its been sitting a while, I do understand the design of the cab and such.

Ten pług przy tym podwoziu to chyba jest do przesuwania wiór drewnianych ? :-)

This puts monster truck’s to shame lol 🤣🤣

Monster snow clearing machine for motor ways 🤔🤔😨😨😨😨😎

It's kinda sick!

awesome

So it plows coal while it rolls coal seems like logic too me.

dont look like it can push itself yet alone coal

that's a big dozer , never seen that type before but i am sure back in the day was a monster ! It seems to me she has some skid steering system going on . am i correct ?

I'm sure maintenance costs killed that thing, like the old Terex dozers with 2 engines. Never seen one before. Probably not many produced

thing is a beast

Boat anchor for a Battleship?

This is what you get when you take the hull away from tug boat.

2:30 any problems with the left transmission?? the righe wheels work,and the machine rotates,the engines work hardly,but the left wheels dont run. I think the engines are little to move this machine. Min 500 hp each. the left engine,sure the turbo is bad.

What is this?

Can see why it never caught on. Bad idea.

Worlds largest skid steer

Hello, can I post this video of you on my Facebook heavy machinery page? I found this video very cool and the viewers will like it very much.

Man imagine all the snow you could push with that eh..

Lots of traction and black smoke but the attachment points don’t look like they can handle dozer power. The push blade looks like a snow plow and the rippers are no where near D10 strength. No my friend coal must not be very dense and heavy when broken up but the stock piles will compact apparently and that’s what the rippers are for

Да большая чудо машина базара нет. Но что если он сам еле поворачивается а с грентом вообще будет мне кажется фиаско. Как вариант не на той передаче все это демонстрировалось

Силён бродяга!!!

monster machine

The one were i worked at in the 1980's was powered by twin 8v92's

Hanford nuclear waste site still uses one of these as a prime mover.

Больше вопросов чем ответов, зачем этот пепелац нужен? Не проще и дешевле бульдозер?

он только по прямой ездит?

That sure wasn't click bait. It was areal picture.

I would think the comments about slow speed may be due to the gearing needed to push a large amount of coal

It's like big Bobcat

I'd say who ever designed it was inspired by le tourno. That thing looks fun though.

Are there any plans to produce any more of these machines?

Sounds like a cat or Bad Cummins

Love to go and play on that

Reminds me of my exwife....blows a lot of smoke and makes a lot more noise.

Probably just doesn't get worked enough...cool to see...

That looks like one that i saw in Nashville Tn but it didn't have a blade or rippers

Que pinche monstruo

O ronco do motor é lindo

That looks like a Transformer that Michael Bay! refused because it didn't look real.. Oh and that KNOCK... my my...

That should be in Grandtheft auto.

Parece um rebocador de navios, mas esse é com pneus.

007 Moonrover! or world's largest skidsteer.

Could repurpose it to move snow

Grande, grande, trabalho nenhum.

I have driven some pretty good size machines in my day but this one is pretty sick. barely enough power to move itself little own do some work. Guess that is why it is parked. no one wants it and too much money to fix it up.

Is this Gerald Gentleman power plant in Sutherland, NE? Sure looks like it, I wonder what the hours are I would imagine in the 10's of thousands!

Dear Santa, Can I have a Buffalo coal dozer with not one but 2 cummins engines in it next Christmas please, even though I have been a good boy if you wish you can leave some coal in the yard also for me to push around. Thanks Santa, Sincerely.....Big engine fan.😁

Que monstro

It struggles to move itself, cannot imagine what would happen if the ripper or blade was lowered!

El que invento esa maquina estaba bien fumado el día que pensó hacerla

amazing machine what a beast what was it used for what is Buffalo coal ??

Damn, this beast has enough torque to peel a priest off a choir boy!

Вот это гусеница)))

It seams like a tug boat..!

Looks like a tug boat on wheels

Не понял, о чём видео?

Looks like a dr suess machine.

Where is located. its for sale

Bona makinaria mol bona. 😪🎗️

Obviously not very nimble. Maybe on a long it could perform much better but the wheel base is huge

So its a big ass skid steer.