Big hole drilling on a cylindrical vessel

Feb 04, 2007 2 Replies

Which is the best method to drill 300mm. holes on a mild steel vessel



30mm thick ?

Thanks in advance.



Sel=E7uk SANCAK



I'm not sure there is a way to drill a hole like that without some Ginormous investment in tooling. How big is the vessel? It sounds like maybe you should torch a bigger hole and weld a premade .3m "adapter" in. If you just need the hole, torch it or plasma cut it undersized, and finish by hand. Not sure what else to tell ya:(

ssancak wrote:

These holes are made now allmost the same way as you told.Vessel diameter is approx. 3m.

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