Electronics Forum | Thu Feb 27 12:41:21 EST 2020 | duke211
look at the specs of your solder and stencil life. Check the humidity, low humidity dries the paste. Slowing down your swipe speed and frequent wipe cleaning of your stencil can help.
Electronics Forum | Wed Feb 12 08:10:49 EST 2020 | majdi4
We can't do that because we are using dual ligne reflow oven..So the two sides of PCB are soldered with the same reflow profil.
Electronics Forum | Wed Feb 19 12:14:08 EST 2020 | emeto
Use them always - they help for even preheat of the board. If there is a temp sensitive/melting component on top side, turn them off.
Electronics Forum | Mon Feb 24 01:31:45 EST 2020 | sarason
If your ovens are 480V you may be able to convert them back to 240V by changing out the elements? There are industrial suppliers for oven elements out there. sarason
Electronics Forum | Mon Feb 24 17:02:45 EST 2020 | kylehunter
So do you guys really not like running oven's this large at 240V? Or do you just not like the two ovens specifically that I mentioned?
Electronics Forum | Tue Feb 25 16:03:44 EST 2020 | kylehunter
Oh no, it's rated at a max of 120A at 208V. We have the power for that. At least the Vitronics is, not sure on the Heller.
Electronics Forum | Tue Feb 25 17:07:01 EST 2020 | dontfeedphils
In my experience Heller makes a great, no frills oven that just runs. The only Vitronics oven I've dealt with was over-engineered and gave me nothing but headaches.
Electronics Forum | Tue Feb 25 17:41:29 EST 2020 | emeto
What we did not talk about is Mycronic machine. Great choice for small batches.
Electronics Forum | Tue Feb 25 18:11:40 EST 2020 | kylehunter
> What we did not talk about is Mycronic machine. > Great choice for small batches. Yeah? That's what I keep hearing! Would use that exclusively for small runs, with the Opal for larger batches.
Electronics Forum | Wed Apr 01 12:26:37 EDT 2020 | proceng1
We have 3 Heller 1800 units. They run great. Our building is 208 3ph. One of ours is running 480v, so we bought a transformer to convert. I am not familiar with the other oven you mentioned.