Electronics Forum | Thu May 28 09:28:30 EDT 2009 | rgduval
Craig, We currently have an older Heller 1800 and quite like it in production. It easily handles our lead free products, and has enough flexibility to handle both heavy boards and lighter boards. Thermal profiling is relatively easy. I'm told the
Electronics Forum | Fri Sep 07 16:53:37 EDT 2012 | burb1999
We have Heller, 1707EXL now. It has a removable support for the mesh conveyor that just pull out (clipped in). Had an Electrovert and they were bolted on and very tuff to change out. The oilers Im not sure I care for though,they have a metal rail t
Electronics Forum | Wed Mar 28 11:05:33 EDT 2018 | dleeper
I had a DOS Heller 1500 a looooong time ago so my memory is fuzzy. That being said I remember there were some weird options in some of the configuration menus. I don't remember the names, but its were you would set the alarm points, you could manual
Electronics Forum | Thu Jul 17 08:28:20 EDT 2008 | jdumont
With our last two ovens (Heller and now BTU) spanning the past 7 or 8 years I did it once a month and have never seen any issues. Reflow ovens these days with PID controllers know exactly what they are doing inside well before you run a profiler thro
Electronics Forum | Wed Aug 13 09:54:41 EDT 2008 | slthomas
+1 on what robgd3 said. It's basically the same process. The bummer is that you only have three thermocouples to give you the information you need, so placement (and attachment) is more critical. You also don't have the predictative capability of
Electronics Forum | Tue Feb 19 10:50:13 EST 2019 | rgduval
Call Heller directly, and give them the oven, and relative thermal density of the board, as well as the solder paste that you're using. They'll be able to give you a baseline profile to start from (both RTS and RSS). Otherwise, use a thermocouple p
Electronics Forum | Tue Feb 19 12:28:26 EST 2019 | slthomas
Presumably you're talking about lead free, but you don't say. Heller can probably provide you with a starting point, as rob has already pointed out, but you do need to develop the capability to perform profiling yourself. That oven should have ECD
Electronics Forum | Tue Aug 27 16:39:39 EDT 2019 | spoiltforchoice
There is no formula out there that chooses a model for low volume high mix. Every oven can manage the throughput, which leaves us with cost, servicing, flexibility and reliability. Ersa Pros: Longer heated length than the ovens I am comparing it t
Electronics Forum | Thu May 18 08:31:28 EDT 2006 | marc
Hi James Short answer... yes... long answer...impingement velocity is excellent for heat transfer but it also is a higher risk of moving components. Variable speed blowers allow you to reduce the speed / impingment and more than likly your compone
Electronics Forum | Thu Jul 23 13:23:45 EDT 2020 | bmalhi
Small components blown issue could be due to one of the below. - Process issue; Make sure solder paste is fresh, if flux is drying out it will not hold parts properly. Check downward pressure of Pick Place. SOT may have to be pushed a little harder i
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