Bridge Fabricator Looking To Start Up In House Sandblasting Operation - Sandblasting - Contractor Talk

Bridge Fabricator Looking To Start Up In House Sandblasting Operation

 
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Old 06-20-2012, 10:10 PM   #1
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Bridge Fabricator Looking To Start Up In House Sandblasting Operation


We are a steel fabrication company that specialized in bridge construction. Everything from new bridge erections to old bridge rehab work. We have recently started to do more and more emergency replacement parts for older bridges. Some is A588 steel but most is A36 steel. We currently are sending out the parts to another blaster that's a hour and half away. They do great work, just for us its to damn inconvenient. All the parts have to blasted to a near white finish so we can put on a coating of Zinc clad two part primer on them before shipping them out. So we are looking to start doing it in house. I currently basically have a death trap sand blaster from the 50s, no dead mans, no safety blow offs, etc. So I am looking to up grade too a 300-500 lb pot that can be used in the shop but still taken onsite if needed. We currently have a part of the shop that is under used and we are planning on turning that into a blast booth. Its 18' wide 25' deep, 16' tall with a brand new 14'x13' garage door being installed shortly. For air, I have an eaton 100 cfm shop compressor and a IR 185 diesel. Which was fully loaded (came from a power company) so it also has the built in 3500 watt generator and 150 psi high pressure set up, along with reels and automatic tool oiler (on separate connection points) we also have a trinco 24x36 direct pressure blast cabinet.

So my basic question who would be a good pot that could be used at the shop and in the field. What pot could have a reclaim system set up on it on a later date for in the blast room. What media would work the best, my only experience in media is been black beauty and Aluminum Oxide in my blast cabinet. We would only ever be blasting heavy fabricated steel or the occasional truck body or railroad locomotive part. Nothing fancy like some of you guys do on here.

I already planned on buying the new norton 3 blast hood and separate fresh air supply. I had a bad experience with a compressor powered helmet set up.

So any help in this would be greatly appreciated.
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Old 06-20-2012, 10:24 PM   #2
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


I'm not a blaster, but do you have an employee capable of meeting the blast specs?

You need to evaluate your set up, maintenance costs & employee reliability compared to the inconvenience factor. Good Luck...

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Old 06-20-2012, 10:36 PM   #3
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


I have some really good guys working for me. They are very good at details on jobs. They all are certified bridge welders. And know to do what ever it is right the first time because I will non stop bitch at them when they don't. Plus doing it in house would give them stuff to do when we are slow. Plus the state doesn't like you to sub out any part of the job.
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Old 06-20-2012, 10:38 PM   #4
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


Where are you located at? I've set up many fab shops blast and paint departments.
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Old 06-20-2012, 10:41 PM   #5
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


Of course you could just find a closer blaster. Call the machine shops and body shops around you and ask for recomendations.

I don't think you want to get aluminum imbedded in to your steel. Could get a reaction down the road. coal slag or glass would be good. If you are only working heavy steel you might use steel shot which you could use over and over.
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Old 06-20-2012, 10:46 PM   #6
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


You say bridges. Are these county, state or federal owned bridges? I'm sure that there are specifications to be met. Correct?
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Old 06-20-2012, 10:49 PM   #7
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


Quote:
Originally Posted by Betterblast View Post
Of course you could just find a closer blaster. Call the machine shops and body shops around you and ask for recomendations.
There is a guy that is 15 minutes away but has causes such an damn environmental impact damage because of sandbasting its unreal. He must have 300 yards of spend silica sand laying around the place. He is always offering free sand to who ever will take it. He is grandfathered in, his paint booth only has a single fan in it with no filters. Its sad. The other guy went out of business and the only other guy I know of only does soda an will not touch anything else.
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Old 06-20-2012, 10:54 PM   #8
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


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You say bridges. Are these county, state or federal owned bridges? I'm sure that there are specifications to be met. Correct?
All of the following, yes there are specs, since its 11:50 pm and I am tired I can't think, but I believe its SSPC-SP10 is what they require.
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Old 06-20-2012, 11:02 PM   #9
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


Actually the spec would follow the paint recommendations for surface prep. You also have to be aware of profile depth. Your Inorganic Zincs go on around 5-6 mils. If you have too deep of a surface profile then you will get pinpoint rusting due to peaks exposed above the primer. Feel free to give me a call tomorrow. 205-717-0292

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Old 06-20-2012, 11:20 PM   #10
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


I see now that your up in MD. I'll be in Aberdeen July, 8th thru early Sept. working in Delta, PA. How far are you from Aberdeen?
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Old 06-21-2012, 05:40 AM   #11
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Re: Bridge Fabricator Looking To Start Up In House Sandblasting Operation


My family rented a cottage by Aberdeen when I was a child. We could often hear explosions from the testing grounds there. It was kind of cool. I don't know if they still do it there.

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