Recycling industrial machinery. New to forum.

I would like to introduce myself. My name is ****, not Jake although people have called me Junkerjake for years after a local character. I buy and sell industrial machinery, selling some whole, some parts, and scrapping the rest. I have just purchased two ice-cream packaging machines and I thought the one frame casting was cast aluminum, but it isn't. It weighs too much. It is nonmagnetic, doesn't spark, and the surface is green where it was covered with stainless. When I cut it, it looks like aluminum. Any ideas? Most of the other metal is stainless.

Maybe cast??

Welcome to smf

I guess there are a few words that you are not suppose to use ****LOL, so I will try it again. My name is Richard, not Jake. I will try nitric acid on it tomorrow and see what color it turns. I think the machine dates from the early 50's to mid 60's. Some places on the casting were used for bearing surface and shows little wear.

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I guess there are a few words that you are not suppose to use ****LOL, so I will try it again.

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That's our good ole auto-censor, it can't tell the difference. welcome, Richard

I put nitric acid on one of the castings. It first turned green then blue. Here is a link to the image. http://img.photobucket.com/albums/v4...d/DSC02662.jpg

http://img.photobucket.com/albums/v4...d/DSC02662.jpg

I know you said it is too heavy to be cast but that would be my guess. I've worked with plenty of cast aluminum mixer parts that had some weight to them.

The part in the picture is 3" wide, 7-1/2" long and would average around 1/2" thick. It weighs 3.28 pounds. I would estimate that I have over 300 pounds in castings on one machine. I am leaning toward a copper/nickel due to the color in the test.

If it dissolved in nitric and turned blue/green it is some form of Cu alloy. Nitric acid will not attack Al. The pic looks like a white brass of some sort. this is similar to silver plated silverware. You need an XRF reading

Do you come across large electrical contacts?

Eric

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Originally Posted by etack

If it dissolved in nitric and turned blue/green it is some form of Cu alloy. Nitric acid will not attack Al. The pic looks like a white brass of some sort. this is similar to silver plated silverware. You need an XRF reading

Do you come across large electrical contacts?

Eric

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I remove silver contacts from starters if they are old or burnt. The rest I sell complete. I use to sell the contacts on ebay, but lately have been saving the silver for retirement.

I am going to take a sample to a yard and they are going to shoot it.

Hey Richard, Welcome to SMF!

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Originally Posted by junkerjake

I remove silver contacts from starters if they are old or burnt. The rest I sell complete. I use to sell the contacts on ebay, but lately have been saving the silver for retirement.

I am going to take a sample to a yard and they are going to shoot it.

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well if you need any help with the contacts let me know. I can convert them to large poured bars or small silver rounds.

Any questions you can contact me through my website.

welcome to the forum.

Eric

What type of machines do you sell? I also buy and sell machines.

I took the cast to the scrap yard and they thought it was nickel silver. Then they tested it and it turned out to be cupronickel 70/30. I had 351 pounds and sold it for higher than copper.

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Originally Posted by Choom

What type of machines do you sell? I also buy and sell machines.

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I buy mostly machine shop equipment, forklifts, and manufacturing machinery. The older and cheaper the better.

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Originally Posted by junkerjake

I took the cast to the scrap yard and they thought it was nickel silver. Then they tested it and it turned out to be cupronickel 70/30. I had 351 pounds and sold it for higher than copper.

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Thanks for finding that out, I'd already made up my mind that it was 'White Bronze', if thats even a metal. Well thats what I sold it for... I wonder if they were ripping me off back then ?

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Originally Posted by junkerjake

I buy mostly machine shop equipment, forklifts, and manufacturing machinery. The older and cheaper the better.

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I tried to PM you but I can't, your account won't allow it. I would like to know what do you available. Maybe I can buy some from you.

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Originally Posted by Choom

I tried to PM you but I can't, your account won't allow it. I would like to know what do you available. Maybe I can buy some from you.

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The only thing I have for sale now is a big American lathe. I am selling it for an Amishman and he replaced it with a Victor lathe. I think it is a 18 x 80 with motor and transmission that set above the spindle. We may scrap it out if it doesn't sell. It has a Buck adjust-tru chuck that he may include with it. I will be getting in some new conveyor belting next week.