Electronics Forum | Sat Feb 15 10:25:50 EST 2014 | jdengler
Can the oven do 400C? If so do them in the oven. Jerry
Electronics Forum | Mon Feb 24 11:24:36 EST 2014 | cyber_wolf
Nothing is locking up or sticking. It's just getting cruddy.
Electronics Forum | Tue Aug 16 23:29:52 EDT 2011 | ckyien
Hi, my company is looking for SMT lines. Currently our target for reflow oven is Eightech Tectron Lead free and Heller 1809MK3. Kindly please share your comments of pros and cons of these machines. Also please recommend other brands and models. Than
Electronics Forum | Thu Feb 13 08:08:41 EST 2014 | cyber_wolf
The manual says to bake the edge chains at 400C to clean them. Is anybody doing this ? I need to take my edge chains to a heat treat facility to clean them ? I don't want to spray oven cleaner on them as they appear to be plated with nickel or so
Electronics Forum | Sat Feb 15 10:31:53 EST 2014 | marcpeo
Sorry to say that most top out at 350 deg. Best to have it done outside. Is the chain locking up or not moving smoothly? If no signs of sticking then maybe no need to heat at all.
Electronics Forum | Fri Jul 01 11:03:11 EDT 2005 | smt_pro
We had this happen in a Heller 1808 oven when we placed Tant-A caps in glue (bottom side / no paste). We had our oven retrofitted to control the zone blower speeds. No more problem.
Electronics Forum | Wed Aug 17 12:07:29 EDT 2011 | emeto
hi , we have Heller 1808 and I would say that is doing good job as oven. However for less than 3 years we had to replace 6-7 blowers. There are very nice machines in the market, but it really depends on you and how much money you are ready to spend.
Electronics Forum | Fri Sep 16 14:12:23 EDT 2011 | jtownsend
Anyone have experience or advice to help prevent SMT reed switches from being blow out of position during re-flow? We are using a Heller 1707 MK 3. Is it possible to adjust air flow in the oven or do we need to glue before placement??
Electronics Forum | Mon Dec 03 08:25:29 EST 2018 | proceng1
I have a Heller 1808 Reflow oven with the chain that has the edge hold to keep the boards off of the mesh belt. The feed end was more narrow than the exit end, and some boards would fall off. So we adjusted both ends to be the same. Well now, when
Electronics Forum | Fri Feb 14 14:09:06 EST 2014 | marcpeo
In general the chains don't need to be heated to 400 deg C for cleaning. In other words, most of the fluxes and constituents in the paste don't collect on the chain and gum it up. Bottom line: the heat treatment is not needed for 95% of the users.
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