Cord
Veteran Member
Due to a stupid mistake I managed to shear off a hydraulic pump shaft. The pump isn't horribly expensive, but the broken piece is jammed inside a drive pump that's worth $4000. I can't grab the piece with a vice grips so I need to weld something on that I can grab. A nut is the first option, but I'm worrying about splatter contaminating the drive pump. There is a Nelson 450 stud welder for sale about 4 hours from me. I think this is a great solution and will give me a tool that might have a residential use for some other project. I thought about a body stud welder, but I don't know if the pins are strong enough. Does anyone have experience with stud welders? When using threaded studs, 1/2" and under, are the ceramic cups needed?