Rock Removal

jmic

Hi Nac,
Ment to ask you whats that coming off the front of your mini at the bottom of the house, looks like it has a gage on it ? Just wondering.

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Joe

Nac

That is the input for the 1" line coming of the compressor it is a main ball valve that feeds an oilier that feed the percussion and a 2nd ball valve feed the blow out hole in the drill steel there is a pressure gauge to let me know the line pressure coming in to the tool. Like yesterday I had my laborers set the hose they put the 3/4" line instead of the 1" line I knew right away because of a drop in pressure.

denick

Nac,

Are you making the production you had hoped?

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Nick

"Every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving" Albert Einstein

Nac

Well the first day I started was Tuesday by the time I got every thing together and moved the machine we only got a half a day in. Yesterday we did pretty good until one of the bolt in the drill must have been left loose at the factory and backed out so I lost half a day. Today I took a diffrent aproch I sent my guys to a nother job and all I did was drill all day long I have enough holes so tommarow I can run the splitter and I have a John Deere 370 with a 8,000 lb hammer coming in to aleast get 20 - 25 % of the job done. While I have a man on the hammer and splitter I will be driling more holes

Nac

Here are some pics of today's work

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jazak

Glad to see you have a bigger ex with a breaker.
Thought you were going to do that all with your mini!

Nac

The mini and the hydraulic splitter do all the hard work the hammer just pics it apart once it is cracked

Nac

Here is a link to see my rock drill in action drilling rock to be split in a trench for a water main in NYC.

denick

Nuc,

Nice video.

How is the durability of the unit?
Any signs of wear showing up?
How do drill steels hold up?
There's no down pressure on the drifter its only sinks by it's own weight?

What is bit life like? Compared to hand drilling?
What type bit do you use?
How do you sharpen your bits?

__________________
Nick

"Every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving" Albert Einstein

Nac

Have a couple hundred hours on unit. Rebuilt the drill once there are some brass wear items that get replaced. Becides that once hose had a pin hole in it from rub up against the rock. Before runing water misting to the drill steel for dust control I was having problems snaping the drill steel at the conection with the bit. Now no problems. There is hydrauilc down pressure that is adjustable we run about 500 PSI but it changes for diffrent rock conditons you can tell by the sound of the drill hitting. I have yet to wear out a bit I have lost a couple do to the drill steel snaping and losing in the hole. We are using Mistubishi rock bits 1" rope tread 1 3/4" balstic button. I have yet to sharpen the bits there is no one loacal set up to do button bits only cross bits, I get a good deal on bits so it is not worth it to me to get my own sharping set up yet wich cost $1,000.00 plus for a air grinder.

denick

Nac

Any effect on the excavator?

Anything the drill won't do that you thought it would?

Anything you've found you just shouldn't do?

Noise problems?

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Nick

"Every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving" Albert Einstein

Nac

No effect on drill. At first we where runing hot then relized had to much flow going to the drill so we turned it down and added a hydraulic cooler. It has worked great we are working on some fine tuning to stream line it a bit and get more range of motion. It would help if the excavator had anti drift valves on it so if drilling deep the position of the drill dose not move. It is noisy about 114 Db. There is nothing you can do about that and it is dusty if you do not add water while drilling. On a side note also you need just enought water to bind the just into larger particals. if you add to much water the just will mix with the water and become almost like cement and you have a hard time pulling the drill steel out because it binds. I use about 5-8 gal for 8 hr work day.

denick

Nac,

Thanks for all the information.



Oh by the way!


Monday on your way to work look on the left as you get to your place. tgeb, jmic, rino, pipeguy, 1799 and myself have started a corporation and bought three Hoe's a hydraulic hammer, a drill like yours, compressor, a triaxle, a rolloff truck and 2 dozen dumpsters and we'll see you at the next bid opening!!!!!

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Nick

"Every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving" Albert Einstein

rino1494

ROFL........be prepared. We are going to lowball everybody.

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LNG24

Where is all that rock going

Teetorbilt

Good question! #2 is really looking for feature rocks for the yard.

I keep telling her that the local rocks are what go with our landscape but she insists on those Yankee rocks. How much would a pile cost? I have a buddy with a boat hauling business that deadheads south in the spring.

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Nac

Most rock goes to Tilcon (24" -) any they crush it. The balance goes to who ever wants it A lot of guys like to use it for retaining walls I dont like it because the surface can be very jagged.

Nac

Teetorbilt if I have any jobs with rock on it as long as you can supply the transportation I will give you all the rock you want. But you have to rember that this stuff is very dense so it is very heavy.

LNG24

What part of NJ are you in? I can take all the rock and fill you want to get rid of. I don't pay for the fill, but I would pay the trucking for the rock. E-mial me with an address and I will see how many trips I can get out of a day.

denick

Teetorbilt,

If your wife wants something like this let me know.

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__________________
Nick

"Every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving" Albert Einstein