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Sand Blast Pot

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#21 ·
You should really contact Sand Storm in Houston. Excellent pots, no sand surging w/consistent flow and made to last. I dont work there but I do own a couple of their pots. One was made in 1971 and operates consistently and just as good as the newer one.
 
#22 ·
You ain't going to get the same production rates from a siphon pot compared to a pressure pot.
The sand storm pots use a lot of grit compared to a Schmidt style pot with a Thompson II valve.
The small pipe work on the sandstorm pot with a large compressor simply doesn't work.
I own a sandstorm pot as well as a pressure pot with a Thompson II valve and the difference is night and day.
The sand storm pot is only good if you don't have a efficient after cooler. If you are producing that much moisture you shouldn't be blasting steel anyway.
The MMJ pots are an old design that has been surpassed by Schmidt anyway. so why would anybody in the blasting game buy one.
The only thing they shoot well with a good after cooler is soda anything else is a pain in the butt.
Buy a Schmidt pot and you will be happy with it.
The only manufacture that posts on here is Schmidt simply because they make the best equipment and have nothing to hide.
Schmidt and clemco make the best gear I own both pots.
 
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#23 ·
Mass,
Just make sure you do your research and remember that there's other factors to a successful blasting operation aside from initial equipment purchase.

You've got to factor in part replacement, media usage, your time, etc.

Over time, what seems like a great deal initially.. rarely works out that way.

I'd say you get what you pay for IF you do your homework.
 
#24 ·
When I was a contractor all I owned was Schmidt and Clemco pots. 6 cu. ft. pots and 8 ton bulk pots. All this other stuff to me is just snake oil. These other machines have been field tested for the last 30 plus years and I know it works. These other systems, there just marketing hype to me. If your going to get into the business to stay in it, I would have to say get yourself into a abrasive blasting course such as the SSPC C-7 course. It can only help you in the long run.
 
#27 ·
Ausisoda is correct. The MMLJ pots are an ancient design. I know, I started with them and have owned 3 over the years. My go to now is the Marco 3.5 cu ft HP Series (pressure hold) with 12 volt electric controls and their top of the line valve.
We blasted a dragster tubular frame, a small wood desk, a small metal table and one Porsche wheel and used 3 bags of Vitro Minerals 40/70 crushed glass. Oh, it took 3 hours for all that stuff. 3 - 50 LB. bags! Nice profit @ $135.00 per hour.
 
#28 ·
Jim, Look around on Craig's list... I found my dry pot for $500 and it's paid for itself 100 times over now.

Another friend of mine just found a slightly used 3.5 cu ft Schmidt pot with blast hoses for $1000

I find stuff there all the time. :thumbsup:
 
#29 ·
I have a thompson ll on my pot and at 110 with a #5 I go through about four 50 lb bags in an hour. Are you sure you blasted for three hours with three bags. I imagine I could get the best mix with lower psi and maybe squeez twenty out of a bag with lower production but I am certain I will never see a full hour with any one bag. Anyone else getting that kind of hang time? Maybe I need new equipment.
 
#30 ·
Betterblast said:
I have a thompson ll on my pot and at 110 with a #5 I go through about four 50 lb bags in an hour. Are you sure you blasted for three hours with three bags. I imagine I could get the best mix with lower psi and maybe squeez twenty out of a bag with lower production but I am certain I will never see a full hour with any one bag. Anyone else getting that kind of hang time? Maybe I need new equipment.
Click to expand...
I think he stopped for 2 hours and 15 minutes of the 3 hours he was blasting.

Still sounds like he got a lot done in 45 minutes of blasting.

Just sayen.
 
#31 ·
With the finer grit of glass, it's usual run time is between 30 minutes to 45 or more. Depends on the metering valve setting and were usually at 75 psi. I had a 1.5 Schmidt and the Marco has consistently run longer on media. The Schmidt was a pressure release and that makes a difference.
We're getting between 20 to 40 minutes when running the 20/40 medium grit.
 
#33 ·
I've have the Marco 3.5 cu, 12v maximum valve. Psi hold.

Usually run 150 lb per hour. Almost to the tee... Of fine glass
On a few times I've gone up to hour and a half or more and my helper and I look at each other and laugh and day wtf is up with it today....?
Always run it about 3 turns out. I don't like blasting and getting nothing done. I run on the heavy side to get if done.

I do know that when the moisture is in the air it runs hard and the grit use goes down a bit. But not to much. Even with the coolers running.
 
#35 ·
My Marco will take 4 - 50 lb bags but when i do this it fills over the pop up valve.
I only put in 3 at a time. Keeps it below the push pipe pop up.

Blastserv. Maybe that is why your getting blow back into the elec solenoid
 
#37 ·
Been out for a while, but I will put my 2 cents in now. I have been blasting with the MMLJ and wasn't having any trouble just wanted something bigger than the 2cf pots and I had read on here about how out of date their design was. I can say that I could tell a difference in the productitivty being as the small pot ran a 3/4" line and this new 6.5cf pot i'm running a 1 1/4" hose. This TVII is nice but I do have more trouble with it stopping up than I had with the sanstorm pot. I called around and priced and argued with every company out there for a year before i finally purchased and I wound up going with Blast One. Yes it is a schmidt pot, but they gave me the best deal and they were the only company that could get me the pot I wanted within a month. For some reason all the other companies needed a month to put together a 6.5cf pressure hold pot with electric remote TVII and 1 1/4" piping. Blast one had their pot delivered 4 days after ordering. They have been great with customer service and I am happy with my decision. and that's all I got to say about that
 
#38 ·
Hey hickory sounds like you have moisture problems with running your new pot.
I would add a couple of moisture traps and see if things improve.
 
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#39 ·
Already checked that. Not a moisture problem, going through my coolers, dryer, trap, then another trap that stays partially open at the pot. It will work fine for a while then stop and i have to let off the button and get back on it again. Usually it will do it a coule times. Sometimes it keeps doing it and i have to stop and choke it.
 
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harmonpa
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