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Clubroom => General Discussion => Topic started by: FAT-TOY on August 16, 2016, 12:06:06 am

Title: parts tumbler
Post by: FAT-TOY on August 16, 2016, 12:06:06 am

  Anyone using a polishing type tumbler to clean small parts, bolts, nuts etc to prepare them for zinc coating.  Cleaning them with a wire wheel etc is fiddly and takes time.  Apparently with the correct media they do a brilliant job.  Getting the threads and inside nuts clean and rust free is the secret to getting a good plating job done.
  I have started to build one, so if no one has tried them I will just have to see how they work.  I will post an update and photo after I get it done.
                             Zane

Title: Re: parts tumbler
Post by: skypig on August 16, 2016, 01:41:27 am

I used to "tumble" my used bullet cases prior to reloading. I used crushed walnut shell on the brass cases.
The tumbler was home made. An electric motor turning two parallel rods onto which I'd lay a plastic container which would then rotate.
I recently threw it out.

Title: Re: parts tumbler
Post by: 80-85 husky on August 16, 2016, 07:50:29 am

the mining industry assay labs use big bottle rollers to do 3Kg cyanide blegs 10 at a time a small one of those would be ideal. search bottle roller.

Title: Re: parts tumbler
Post by: kdx Geoff on August 16, 2016, 08:38:04 am

Quote from: FAT-TOY on August 16, 2016, 12:06:06 am

  Anyone using a polishing type tumbler to clean small parts, bolts, nuts etc to prepare them for zinc coating.  Cleaning them with a wire wheel etc is fiddly and takes time.  Apparently with the correct media they do a brilliant job.  Getting the threads and inside nuts clean and rust free is the secret to getting a good plating job done.
                         

You're not using a bead blaster ?

Title: Re: parts tumbler
Post by: Tim754 on August 16, 2016, 05:14:38 pm

I tried that with an old simple gemstone tumbler many years back. Used Apricot kernals as the medium. Some parts fine, others a loss. Not really practicable . Tim754

Title: Re: parts tumbler
Post by: pecrazy on August 16, 2016, 06:53:37 pm

I have heard of old tyres used as the tumbler with profiled and oxy cut plate steel, could use a wide quad bike tyre for small parts, unsure of what media to use.

Title: Re: parts tumbler
Post by: FAT-TOY on August 16, 2016, 09:03:55 pm

  Hi Geoff
   Yes I do use my bead blaster but when I am cleaning bolts and nuts and small parts ready for zinc plating the blaster is ok but won't get them clean and with that polished look that makes the plating look like new.  Apparently tumbling the parts using stainless steel pins gives good results and the parts come out spotless and polished.  Anyway I will know soon enough, I'm about half way finished making one.  Fingers crossed.
                                   Zane

Title: Re: parts tumbler
Post by: fred99999au on August 16, 2016, 09:39:31 pm

I think I need a step by step before the outcome.