Castors for Welding Table

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Looking to replace the castors on my welding table. I was thinking maybe cast iron for table earthing. What do you think, is it really necessary or is synthetic ok?
Reply:How heavy is the table?

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Reply:I’ve always used 3 inch sintered cast iron castor wheels on my tables.  They are only 300 pound capacity per wheel but seem adequate.


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Reply:Calculates to 190kg. what's that 418LBS?
Reply:

Originally Posted by Woznme

Calculates to 190kg. what's that 418LBS?
Reply:I think he was answering Oscar's question as to how heavy his table is.... so yes, if it's 190 kg that's 418 lbs plus projects and shock loads. You might find synthetic castors that are rated for those kinds of loads, but I think a heavy table would still "flat spot" them sitting in one place. I went with metal wheels as well...

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Last edited by whtbaron; 4 Hours Ago at 11:12 PM.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:

Originally Posted by whtbaron

I think he was answering Oscar's question as to how heavy his table is.... ...
Reply:That makes sense, hadn't considered flat spot. That seals it. Amazon has some 3" 350 pounders.
Reply:If your floor is uneven, cracked or has a lot of crud on it, the 5" will roll easier, but yea, as far as loads go I think the 3" would be a good choice...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:I have a preference for larger wheels but in this case putting larger wheels would raise the table above the level of my workbench which I use for longer overflow so I'm stuck with 3".