Another lonely forum

[CM1995]

I don't know anything about mills but this forum needs a post. Come on pavement guys!:D

[Electra_Glide]

The only thing I know about mills is that they don't like concrete. Worked on a job two years ago where they had the paving contractor come in and mill the old parking lot where a major addition was going to go. We removed all the sidewalks and concrete stairs around the old lot. The paving contractor showed up, unloaded and hit a piece of the old sidewalk that was actually UNDER the parking lot as he was halfway through his first pass. Spent the next few hours fixing the machine.

Joe

[hoeman600]

out here in cali they call"em grinders :Pointhead

[Squizzy246B]

This has to be a terminology thing...so OK...What the hell is a mill??

In my service days a mill was an Boxing torment comprising two opposing tems of 10...you got 60 seconds to beat the daylights out of your opponent....I was lucky...I generally was able to get my nose bent over one way and the get it punched back straight again!:cool:

(Hi-jack in progress:D )

[Grader4me]

This has to be a terminology thing...so OK...What the hell is a mill??

In my service days a mill was an Boxing torment comprising two opposing tems of 10...you got 60 seconds to beat the daylights out of your opponent....I was lucky...I generally was able to get my nose bent over one way and the get it punched back straight again!:cool:

(Hi-jack in progress:D )

Hello Squizzy...It is called a milling machine, it mills or chews asphalt surfaces. Does a great job but it doesn't like concrete. You don't have these down under?

4188

[Squizzy246B]

Hello Squizzy...It is called a milling machine, it mills or chews asphalt surfaces. Does a great job but it doesn't like concrete. You don't have these down under?

4188

So its a cold Planer then?

[Grader4me]

So its a cold Planer then?


I never heard it called that before, but I would imagine that they are one in the same...anyone else have any input? Is there a difference?

[Squizzy246B]

Yep, same thing, have a looky here: (scroll down)

http://www.trackpads.com.au/default.asp?id=9

and here: http://australia.cat.com/cda/layout?m=64165&x=7&location=drop


Cheers

[Countryboy]

Yup, they are the same thing. I knew them as a "cold planer" to begin with then learned they were also called "mills" or "grinders" for short.


Or maybe Georgia is really Down Under. :beatsme :D

[Grader4me]

We had a milling machine that did a job for us this past summer. It was the type that would chew up the asphalt/chipseal, but didn't have the conveyor attachment. The road was mostly chipseal with a lot of asphalt patches and was in very poor condition.
So it milled one side of the road first, depositing the material underneath it as it went. I leveled and widened the road (with the grader) to the proper width. Did the same after he milled the other side. After he was completely done I shaped the road up giving it a proper crown.
We then hauled 6 inches of crushed gravel on the road and resealed it. Road turned out great. The milled material made an excellent base and we never had to haul any pit run.

[murray83]

I haven't seen a road chipsealed since the early 90's I think I was in grade 3 when they did the road across from me.

I hear the parts for those rigs aren't cheap,guy from miller once told me a price for a part and I was pretty surprised.

[hoeman600]

the bits on the drum need changed constantly:Banghead . as for names i have herd the bits called bull *** bits:confused:

[telescooper]

It's nice see that this forum is getting looked at. Mills, grinders, or whatever you call them are great pieces of equipment to operate. I spent alot of time around, under, and operating them. Most of my time was spent road widening. One thing is for sure at the end of the day, you will be filthy, and pooped out. They need constant attention and maintenance. Burried manholes, or other steel objects, generally bring a stop to your operation in a hurry.:beatsme Also the conveyor belts can jam with rocks, or large pieces of pavement, if not caught early these jams can cause a belt failure. Team work is very important between the ground man and operator. A good team is very productive. Another good thing about these machines are the paver, and widener guys will cover your messup's. Watch out for the bees.

[CEwriter]

Did you know Ingersoll Rand is getting back into the milling-machine biz? Just introduced a half-lane machine and a utility machine.

http://www.constructionequipment.com/article/CA6402715.html?text=ingersoll+rand

L

[Dozerboy]

The ones I have worked with will do concrete, but IIRC $800-$900 a hr. for a 4' or 6'er. I've heard them called all of thee above.

[Motor Grader]

Contractors and public works officials at the National Pavement Expo were introduced to an innovative new system developed to improve ride quality and extend the life of asphalt roads and highways, without repaving.
The Roadmaster Ride Quality Improvement System was demonstrated at the nearby Music City Motorplex (Nashville Raceway) by Champion Motor Graders and its development partners.
The flagship of the system is Champion’s new Roadmaster RP626 Asphalt Profiler, a unique piece of road finishing equipment that mounts a 6’ grinder cutting head under the front frame of a Champion C60 Motor Grader. The RP626 Asphalt Profiler smooths asphalt surfaces by grinding away any bumps and irregularities within tolerances of 1/8th inch or less.
The complete 3-step Roadmaster system follows up the smoothing process with a sealer to fill any remaining cracks in the surface and then applies a rejuvenator that restores life and resiliency to old asphalt.
Bryan Abernathy, Vice President Sales & Marketing at Champion Motor Graders, says, "They had done their homework on how the smoothing, sealing and rejuvenating process could save millions of dollars for municipalities and counties every year.
Maintaining ride quality at a reasonable cost has become a key challenge for planners and contractors in recent years, too. Our graders have been a valuable tool for safe and affordable road maintenance for 25 years. Now we can offer a new solution that goes even further to reduce costs for taxpayers."
With a background in maintaining asphalt runways for military airports, Jim Wasson collaborated on developing the Roadmaster concept with Charlie Freeburn, a specialist in finishing the paved surfaces for drag strips and race tracks. The pair first built their own version of the RP626 profiler before showing the idea to Champion.
Wasson says that customers in the motorsport market have been more than impressed by test results on their tracks. At 200 mph, he says, "small bumps in the road make a pretty big difference in performance and safety!' But for public roads and highways, the practical value of the Roadmaster system is in the cost savings in the restoration of paved roads and in extending their useful life. "Refinishing the existing road surface with the Roadmaster system is significantly faster and lower in cost than resurfacing or rebuilding the road. We have been completing 2 lane/miles of roadway in a single 8-hour shift, including the sealer and rejuvenator applications. Contractors and maintenance crews can do the job with less equipment, less material and, compared to other methods of road improvement, there’s almost no disruption to traffic."
According to Wasson, improved ride quality is a major factor in the lifecycle of a road surface. A smoother road results in reduced wear and less impact from the vehicles that drive on it. Meanwhile, taxpayers get the added value of a safer, more comfortable ride that reduces fatigue, improves fuel efficiency and minimizes wear on their vehicle.

[telescooper]

After the surface is profiled what happens to the millings?

[Countryboy]

They are reused in the asphalt production process at an asphalt plant.

[Grader4me]

After the surface is profiled what happens to the millings?

When we have a road milled in our area, the millings are stockpiled and reused for shoulder material etc.

[Orchard Ex]

After the surface is profiled what happens to the millings?

Lots of plants reuse them in the new HMA mix but our local one doesn't. Maybe it's not set up for it? :beatsme
Here the milling's are used for base under new/rebuilt roads or sold for use on driveways etc. If it is milled fine enough or run through a crusher again it is very durable on driveways. I used it on mine until the price doubled as everyone caught on to it. :(

[Motor Grader]

There is some waste, but not like you have with conventional milling machines that require a conveyor of some kind to collect. We are only "bump grinding" with this machine and the waste is more like a dust and sand. We are collecting it with a pick up broom.

[928G Boy]

I used to work for a smaller company that had a division in recycled concrete and asphalt. They teamed up with another larger contractor on a road job. we did curb/gutter/sidewalks and the big boys did the milling and repaving.

The little guys were smart, they hauled all the asphalt millings to their "processing yard", turned around and sold it as yard topping to a lumber yard. pure profit gotta love it. The recycled asphalt works great, pack the heck out of it and leave it in the sun and it bridges quite nicely.

[637slayer]

here in wyo ive seen it done several ways, 1, just rip the asphault with a dozer load it in scrapers and bury it somewhere in a deep fill off of the mainline, 2, mill it and the trucks take it away somewhere i guess they used it for something should have paid more attention, on one job they milled the top few inches put it in piles and we used it for the detours, as we finished the dirt to grade we put the millings on top and it worked really well for traffic to travel on, then after the dirt grade then the base lastly they paved, after the paving the state runs a mini van with tinted windows so you cant see the hundreds of thousands of dollars of special equipment inside, they drive it up and down the new highway every inch at different speeds, the special van reads the road takes all the unacceptable bumps and marks them, they give this info to the grinding company, the grinders ive seen were big box looking things that looked like a ice hocky rink shaver, they always have a water truck attached to it, im usually putting on topsoil while they are grinding so i got alot of close looks at these special machines, i know they get paid by the grind and its not cheap.

[muddobber]

The shop I worked in built underground continuous miner heads. We did a few road planer heads that Kennametal supplied the bits and blocks for. Definately not cheap. Wear on the bits depend on the attack angle set to the blocks when installed. An amazing machine to see operate.

[PipeGuy]

A company that I used to work for had an "Asphalt Zipper" it had a 4cylinder cummins engine that powered it and you put it in your loader bucket. It milled 36" wide and left the grindings in place. I worked good for installing pipe down teh middle of the street. You didn't have to sawcut both sides you just "zipped" it. But when the teeth got wore down, it didn't work good at all. Good teeth are key to milling

[ASPHALT04]

Where I used to work whether we tore it out or milled it off all went back to the asphalt plant. In some cases the old asphalt is worth almost as much as the new asphalt per ton. There it all work get sent through the crusher and made into 5/8" material. Periodically we'd take samples and test them for asphalt content.
Using recycle in the plant cuts down on product cost because it carries a certain asphalt oil content which turn cuts down on the % of new asphalt oil to be used in the mix design not to mention the new aggregate %.
Recycle going into the plant holds a higher value than using it for base in some cases.

[jdlogger]

just filling the 3 post minimum

[plowking740]

some places you even have to mix in a certain amount fo your 'grindings' with the new asphalt mix. this usually done in the first lift or two and then the top lift is usually all new product. I have ran a few 'grinders' and they all could handel concrete. I think it was the types of cutting teeth used. I cant remember the name , but I do remember they were about $12 a tooth. and they didnt like hidden manholes ot water valves. usually the valves/ manholes lost the fight, but the odd one would tear off the tooth and the "shank" that held it. we always had a dozen or so shanks on hand to weld back on.if it happened.

[Nick Abeyta]

Any word on the highway about VOLVO's new MT-2000 mill from IR? - They've been advertising it for 2-yrs now and noones talking about it pro or con.

[milling_drum]

We need plenty more pictures, I have a few too add when I figure out how to post them.

Anybody know who needs a good mill/grinder/profiler operator? email me

milling_drum@yahoo.com

Thanks

[digger242j]

We need plenty more pictures, I have a few too add when I figure out how to post them.


Welcome to Heavy Equipment Forums, milling drum. :)

Here's the instructions for picture posting: http://www.heavyequipmentforums.com/Forum/showthread.php?t=2284

[redline]

in qld there called profilers, i have some pics floating around here somewhere

[milling_drum]

Hello Squizzy...It is called a milling machine, it mills or chews asphalt surfaces. Does a great job but it doesn't like concrete. You don't have these down under?

4188

This pictured Mill is from FL, I think a company called Mill=it ran it. over the years I saw this picture when it was for sale by a Heavy Eq. dealer outside Orlando.

One of the first forward loading types of mill/cold planer/profiler/grinder this model is. Can't remember the series # though

[milling_drum]

Hm, I wanted that last post elsewhere.

[Dirt Devil]

in qld there called profilers

i agree with redline, here in south australia we call them profilers too, but everyone has thier own thing :D

[chincot]

Yes, I have seen Volvo's(IR) new MT2000 mill. Very impressive. 3 drums speeds that runs direct from engine, so no changing drum drive pulley. Four different steering modes, so cul-de-sac's will not be a problem anymore. Very well designed machine, just like the old IR mills in the 90's.

[Turtle]

These machines were first called Cold Planers because prior to the Galion RP-30 which was produced in 1974, the only planers out there were heater planers. They used heat to soften the aspahlt then it was scraped up. We puchased one of the first ones made and wanted to emphasize the fact that they did not use heat to remove the aspahlt. CMI came out with their machines shortly there after and coined the tern ""RotoMill" because you are basically milling the raod the same way a machine shop mill works on steel; hence the term Mill or Milling Machine. We purchased 3 of their machines in 1975/76. The other terms used for the machines are Cold Mills, Pavement Profilers, Grinders(mostly used out west), and Planers. Almost all of today's machines have they same basic drive system which was first introduced by Herb Jacobs in 1978 when he made the first direct drum drive mill in the barn behind his house in Taylor, SC. It was called a Roconeco Sidewinder 6.5. We have owned several of these since 1979. Up until that point all the mill drums were driven by hydraulic motors. He was the first to use a PTO, belt and pulley system. His design and company were purchased by Ingersoll Rand and the machines were mass produced as IR MW-6520 or the track model MT-6520. These were some of the simplest yet most dependable machines I've ever seen.

[andoman]

Since I'm a little new and I mostly utilize hydraulic motor driven mill attachments, what was the downfall of the large hydraulic motor driven machines?

[Turtle]

Hydraulic drives are not as efficient in HP transfer as direct belt drives. It also allows you to lessen the hydraulic load on your machine which mean less pumps and motors, less heat exchanging need, smaller oil cooler, less hydraulic oil needed to run the machine. Any time you can remove the need for hydraulics in this enviroment it is a plus.