| The Shop > Finishing |
| Junk yard project ,media blasting , pressure pot |
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| 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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