The Shop > Finishing
Junk yard project ,media blasting , pressure pot
Rob.Wilson:
Afternoon Lads
Woke up yesterday with an itch I needed to blast and now that my welding shop is sort of usable I thought I would do a bit fab work and make a pressure pot for blasting , there is no way I would pay close too £200 quid for one , mine will cost me about £2 quid and thats for electricity ,cos I cant make that LOL
Mine will be made from free junk parts , scrounged and given , John donated the tank from an old compressor :thumbup:
Cleaned up the tank , cut off all brackets.
Cut down a 3" BSP lump of SS pipe for the filler and threaded up a short length of 1/2 pipe .
Cut a hole in one end of the tank for the filler .
and welded the filler neck in ,using dissimilar welding rods .
Then made up a trolley from an old sack barra and welded that to the tank , with all the welding to the tank done I gave it a hydraulic test .
Full of water .
Hand pump
Tested to 220 PSI , I will be running the tank at about 90 PSI
All being well it was given a bit of a paint job
Still needs another coat of paint ,then I can get the pipe work fitted .
Rob
John Rudd:
Nice job Rob, :clap: :bow:
but yer welding looks like pigeon ****.....(not!!!)
What blast media you going to use?
I use garnet ( free from work) or chilled cast iron ( again from work) or ally oxide...
Ideally a tungsten tip is best, I found the ceramic ones dont last... :scratch:
Rob.Wilson:
:lol: :lol: Thanks John
Garnet ,,,,,,,,,cos I can get it free :med:
Thinking about making my own nozzles and gun , as I can seam to fine any local .
Rob
John Rudd:
Rob,
Where is the blast media exiting the tank? :scratch:
I dont see a tee at the bottom...
Are you going to use a water trap/filter on the inlet?
What size compressor you going use? (let me guess, you got a second hand 90cfm diesel compressor from work for free... :lol: )
Waiting to see what creations you come up with for a gun/nozzles
Rob.Wilson:
Hi John
From the bottom mate were I had the high pressure hydraulic line fitted for testing the tank .
I have a water trap fitted to my shop air pipe work , but I am still thinking of fitting one to the pot when I fined one , thought I had found one the other day ,
Pile of junk ,,,,,,,,,,,,cant resist ,,,,,,,,FREE STUFF
wanders over :ddb:
Nice water trap/reg and oilier
Shame its 1/4 BSP no good for this project ,but it will do nicely for a power draw bar on the CNC mill ,also got a bunch of other useful tackle from the pile :med:
I have a 15 Cfm compressor works fine with my siphon blast cab , ist not like i am blasting for hours at a time ,I do have a spare 15 pump and motor unit I could add to the system if necessary .
Rob
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