Laser Welder | Laser Spot Welding Machine For Harris Tips Changed????

Harris Tips Changed????

Tue, 22 Nov 2022 07:51:27 GMT

go to see Welding Machine for Harris Tips Changed????

  The old tip is probably near 20yrs old, so that may make a difference.  But.........it seems as if they've changed the design.  Smaller preheat holes.  Called the guy, and he said they will work fine, not to worry.............  Dunno..........This is a 6290-2 meant for up to 2" plate.  I just can't see how those tiny little holes will provide enough flame.  The old ones had larger holes.  Or maybe not(shrug), the old tip's been cleaned a time or two over the years(shrug).  It's pretty much past the time of cleaning anymore..........it lived a good life.They're not aftermarket.  I only buy genuine Harris tips.  (yeah.......buys a couple of tips in 20yrs

)  I also had them send me a 6290-1 for thinner stuff.
Reply:

Originally Posted by farmersammm

  The old tip is probably near 20yrs old, so that may make a difference.  But.........it seems as if they've changed the design.  Smaller preheat holes.  Called the guy, and he said they will work fine, not to worry.............  Dunno..........This is a 6290-2 meant for up to 2" plate.  I just can't see how those tiny little holes will provide enough flame.  The old ones had larger holes.  Or maybe not(shrug), the old tip's been cleaned a time or two over the years(shrug).  It's pretty much past the time of cleaning anymore..........it lived a good life.They're not aftermarket.  I only buy genuine Harris tips.  (yeah.......buys a couple of tips in 20yrs

)  I also had them send me a 6290-1 for thinner stuff.
Reply:

Originally Posted by M J D

Is it possible that the one with bigger holes is a higher preheat tip?  That would really be the only reason I could see with the same rated #2 tips.
Reply:

Originally Posted by M J D

Is it possible that the one with bigger holes is a higher preheat tip?  That would really be the only reason I could see with the same rated #2 tips.
Reply:

Originally Posted by farmersammm

Maybe I reamed the damn holes bigger over the years with the cleaning rod thingy's.
Reply:

Originally Posted by farmersammm

[Picture omitted] The old tip is probably near 20yrs old, ...This is a 6290-2 meant for up to 2" plate.  I just can't see how those tiny little holes will provide enough flame.  The old ones had larger holes.  Or maybe not(shrug), the old tip's been cleaned a time or two over the years(shrug).  It's pretty much past the time of cleaning anymore..........it lived a good life.
Reply:

Originally Posted by Oldiron2

I have Harris tips, including that one [6290-2], that are close to fifty years old. Want me to mike the holes in mine, just for comparison? Mine still looks like-new, less staining on the outside. FWIW, I still have a Glossy-colored hardbound Harris catalog from that era; need any of it scanned and posted here?

Reply:

Originally Posted by whtbaron

Hmmm.... maybe a little, but that tip is definitely different.... look at the shape around the center and the distance to the outside holes from the outer edge...
Reply:I never file a tip, just clean the holes with a tip cleaner.
Reply:Maybe that's how they are maintaining heat with the smaller holes? More focused into the center? Fuel saving concerns over the years?The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:They're owned by ESAB now.....................  Probably messed up the original design.  They don't think so good across the pond

Reply:But I do like ESAB rods
Reply:Well... at some point you are just going to have to try it out. Who knows... maybe you'll like it better...The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:Harris is owned by Lincoln. ESAB ended up with and destroyed Victor. I think you have just opened up the holes with cleaning over the years. No matter. The new tip will likely perform fine. If not, Take it back.. Harris tips are the least complicated tips on the market to produce so don't be afraid to try aftermarket tips for half the cost.Thermal Arc 320SP ( Lorch )Cobra PythonsThermal Arc 300 AC/DC  ( Sanrex )ESAB 301i AC/DC  ( Lorch )Thermal Arc 161STL  ( WTL )Thermal Arc 190S  ( Sanrex )Cut Master 82, 42. Cut45 ( WTL )Victor Gas Apps.Boxes and boxes of welding crap.
Reply:

Originally Posted by farmersammm

Cool

  Maybe I'm just a doddering old fool.  No need for the catalog,, just see what size cleaning tip fits the preheat holes.  Thanks!
Reply:For the price of the tip just try it and see what happens, you may be over thinking it. While nobody seems to like them, scientists and engineers are not dummies and there is usually a reason something is the way it is. Could be that they have just worked out how to make things better over 20 years. Could be to do with velocity of the gas flow through the holes. Could be a number of things involving quite a bit of mathematical equations.Gear: Esab power compact 205 with tbi industries torch       BOC Smootharc 185dc tig       Miller Syncrowave 350LX

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