Tank roller

[Ron66]

Being a casual welder I only use my mig about once a month. Usually by the time half the tank is gone my welds go to crap. I work for a medical device manufacturer an we have gas mixtures that have to be put on a tank roller before we can use them for equipment calibration to ensure the gas is mixed. I thought I could make a home version. A 4 4" skate wheels, some angle stock and a drive motor from a discarded kids ride on toy and presto! I'm at 700psi and still welding great!

[Jake98]

Welcome to the forum Ron. What's your theory here? The gasses separate?

[Ron66]

I think that the heavier CO2 settles to the bottom over time. Part of the problem I think is that the gasses are not pre-mixed. The argon goes in as a gas but the co2 goes in as a liquid. It's the co2 expanding that builds the final pressure in the tank. So they're not well mixed to begin with. I've been told that pre mix gas won't seperate for a very long time but most places around here do re-fills on my tank cause it's an oddball size.

[CGCINC]

I would ask if it could be standing up and spinning but with Ron66 saying the Co2 is hevier... I guess that wouldn't work so well. It would be a seperater..

[Ron66]

All commercial tank rollers put the tank horizontal to mix.

[Rodsmachineshop]

did you know need a fire extinguisher just grab your mig tank upside down and open it lol

[Rodsmachineshop]

i find a lot of places just dont mix rite

[Rodsmachineshop]

need like a jumbo thing like they use to mix paint lol

[Brian Ski]

need like a jumbo thing like they use to mix paint lol

I have to see someone try that... Like a youtube video when the tank slips out and shoots off like a missile out of site.

[Rodsmachineshop]

lol me and some friend when in high school in metal shop took a oxygen tank laid it on its side and knocked the valve of with a sledge hammer ended up out in the foot ball field we got suspended from school for a hole week aww the life of a teenager lol I was evil when i was kid lol