VObration tumbilng steel bolts?

That would be my concern. Thread forms are important. Big stuff like that is a good job for a wire brush of the appropriate meterial. Tom probably knows what to use.

Tumble or vibrate? Tumbling tends to bash them around a bit more. Tub vibrators are what most folks use.

And for that..small media and it works very well for your application.

These.....

Gunner

Oh..btw..if you find a vibratory deburring machine..and the inside is worn out..simply take it to a shop and have it sprayed with Rino Liner or any other good bed liner. Works freaking great and is very cheap for something that small. Seems to outlast the standard replaceable liner too.

Gunner

vibratory tumbler

That's what I have. 0.5 cubic feet 1/3 HP vibratory machine.

What exactly do you mean by small media. I have some ceramic media, they look like little turds 3/8" long and appx 3/16" thick. Is that small?

i

Ayup. Keep in mind that when you clean up stuff that has holes in it....you may want the media to go inside..and other times...not go inside.

This is the same reason one NEVER puts 9mm and 45 cases in a cleaner that uses walnut crushed.

The lil 9mms go into the bigger 45s and get jammed there by the media. Can be an utter pain in the ass getting them apart.

Some of the small soft media may..may get stuck inside your work if you have small holes etc.

Ceramics can get stuck in some really wierd places. The size you have would probably be good for anything with at least a 3/8 diamter hole in it. Or bigger.

You understand what Im talking about?

Gunner

Iggy, have a look at

for an idea of sizes and shapes. We have two Royson tumblers at work and buy parts and supplies from them and they are great to deal with.

----- Regards, Carl Ijames

So after a few hours, the pennies were shiny, but not perfect new looking. Still a bit of patina on them. I decided to try Brasso, added about 2 tbsp of it and will tumble for one more hour. The point, of course, is not because I need shiny pennies, but just to experiment.

i

That's what you have children for...and wire brushes. Or, do you have a blasting cabinet?

Come to think of it, I have all of that, some things in duplicates (children)

I think I'd try electrolytic cleaning in an alkaline medium. The alkalai will cut grease and the electrolytic action will attack rust but not good steel.

Take them to a black oxide place. Per pound price isn't too bad, and they degrease them and derust them before coating.

Agree with John. It would be much better to just clean each one prior to use rather than risk damaging the whole lot.

That would be my concern. Thread forms are important. Big stuff like that is a good job for a wire brush of the appropriate meterial. Tom probably knows what to use.

rather than risk

The electrolytic derusting process works a treat.

rather than risk

Indeed it does. I recently was given a pair of power supplies from a Moog milling machine, Nice self contained high amperage, low voltage (5vt DC @ 22 and 50 amps) boxes that will be turned into derusters in the next couple weeks.

Gunner