Because these cooler work?
In the video they give plenty of reasons and measures temperatures to back it up.
My cooler was meant to be a temporary thing, and I started to weld together
tank, cooler, pump and mounted fan and some temp sensors and electronics.
What I really found out was that the pump shown can cool the torch and cables just fine.
So I abandoned the "real" cooler and just made an extra cooler for 5 bucks
in case it fails.
I beg to differ.Anyone that actually measures flow, pressure, temperature and correlate that with welding power will see that the ridicilous pressure and flows in professional pumps are not needed. If you are professional then by all means by what you want but it is not needed for a hobbyist.
This I absolutely get. And I’d of done exactly the same thing if mine went pop to finish the job then fixed the cooler when the chance aroseI had an ESAB cooler pack up half way through an aluminium job at around 100A on a WP20 torch so as a last ditch attempt to complete the work I set it up with a gravity feed and the flow kept the torch cool enough to finish the job. I'm under no illusion it would have done the same at higher currents though.
Anyone that actually measures flow, pressure, temperature and correlate that with welding power will see that the ridicilous pressure and flows in professional pumps are not needed. If you are professional then by all means by what you want but it is not needed for a hobbyist.
Mains supply can be made to produce enough pressure to cool a torch sufficiently. The high power or useage won’t have a problem with it.Its a longtime since I’ve been on weldingweb, but there were plenty of good welders running high amp watercooled setups directly off the main water supply, with the return going to drain
This is a fair point.1.5 litres a minute from a cheap pump or 1.5 litres from an expensive one, what is the difference?
It might of been cheap but it was able to provide sufficient pressure and flow.I made a cheap cooler using a 12v pump a couple of years ago, it works fine for my purposes, its only been used very occasionally, in fact I cant even remember if I've used it this year.
https://www.mig-welding.co.uk/forum...e-with-wp20-torch-and-diy-cooler.65542/page-2