Drilling rock with a rotary hammer for blasting?

[Egon]

Single Jack and Double Jack back in the days.

 

[joeyd]

If the other guys are retiring, why not try and buy the best equipment that they are going to be selling off, that will properly do the drilling job ?

X2, my thought exactly

 

[AHNC]

Ah, for the good old days when you could just go tho the hardware store and buy some dynamite.

 

[Egon]

Charcoal, saltpetre, sulphur and mix your own. Or buy a barrel of black gunpowder.

 

[Sebculb]

Hola everyone, thanks for all the experience. I'm certain I could get all this to work on some level based on what I've read here and elsewhere. However, it's not gonna be "pro" capacity and it's been my experience that when I take my big Harry homeowner grade tools to do an industrial grade job it abuses my tools and I hardly make any money. This is exactly why I sold a nice and pretty little Kubota tractor with a 3pt hitch backhoe and bought an old beast dinosaur deere backhoe to do excavation work around the neighborhood. It's ugly but awesome and has become my main business. Another example is milling wood for other people with a 24"bar echo chainsaw and Alaskan mill. It'll do it but it takes forever and works better with a 36"bar stihl or Husqvarna.

Sooo, my neighbor's kid who's a sales rep for Hilti here finally got back to me with a quote for their big rotary hammer and appropriate bits. It'd be about $3000 to get set up for blasting rocks with that equipment, which will always be "light duty" as far as blasting rock goes. Seems like a lot of investment for a little sideline gig. Not saying it couldn't work but I'm not going to go for it right now.

Rather I made a big piggy bank out of 4x4 post tube and welded it shut and screwed it to the floor under my bed. Gonna start saving for another backhoe cuz while these old beasts never need to die sometimes they're down for a month or two while waiting for parts. A second machine would enable me to not lose work, and also do things around the house while the other machine is at a job site.

The $3000 it'd take to start dabbling in blasting rocks will get me 1/5th of the way to a new previously owned rust bucket dinosaur backhoe. Gonna push forward in that direction for now.

Thanks everyone!

 

[radios1]

Charcoal, saltpetre, sulphur and mix your own. Or buy a barrel of black gunpowder.

at least in the USA, binary explosives can be bought by anyone, since they are not explosives until mixed.. nitroglycerine is the one that should NEVER be homemade since it's WAY too tricky to prevent it from exploding during the mixing process, it's made by robots now, because of that..

 

[MossRoad]

at least in the USA, binary explosives can be bought by anyone, since they are not explosives until mixed.. nitroglycerine is the one that should NEVER be homemade since it's WAY too tricky to prevent it from exploding during the mixing process, it's made by robots now, because of that..

You cannot mix binary explosives for hire without a federal explosives manufacturing license.

From here:
Binary Explosives | Bureau of Alcohol, Tobacco, Firearms and Explosives

Also:
"Therefore, licensed manufacturers and dealers of pre-mixed binary explosives kits, such as those used to make exploding targets, including those who combine the components to make videos or photos for use in marketing, or to test the product, are subject to federal recordkeeping requirements and must maintain records of manufacture or acquisition, distribution, exportation, use, inventory and daily summaries of magazine transactions found in 27 CFR, Part 555, Subpart G: Records and Reports."

Makes you wonder if someone makes a youtube video of themselves shooting tannerite targets and gets paid by youtube would be violating the law?

 

[crazyal]

What kind of spline drill do you have? I致e never seen an electric drill of that magnitude. There痴 a lot of difference in a SDS drill and a SDS max but I致e never seen one that weighs 60 pounds. My SDS max drills 1 holes in rock fairly decent but I壇 never attempt drilling 20 holes 2 deep or something like that. If you were going to attempt you壇 need a vacuum or blower to clear dust and you壇 either need a half dozen drills or a LONG time to wait for them to cool.

My mistake. The larger one is hex shape bits, not splined. It's been years since I've used it and noticed one of the bits in the garage yesterday. Another name used is demolition hammer than a rotary hammer but to me a demolition hammer doesn't have the option to turn like a drill. The small ones are around 40 lbs while the large ones are probably twice that.