Electronics Forum | Wed Jun 29 17:56:47 EDT 2005 | Ryan
We have a new Heller 1809 EXL reflow oven and when we run MELF�s or Aluminum Electrolytic Capacitors through the oven they are being blown off the pads. I have verified that the placement is good before reflow. I verified that they are pushed down
Electronics Forum | Thu Aug 10 07:04:41 EDT 2006 | CL
Good Morning SWAG, We have had similar problems with our Heller 1800 EXL's when the chains would build up oil and debris. The only way we could get them clean was to put them into a self cleaning oven and carbonize the residues. We then rinsed them
Electronics Forum | Mon Jan 29 14:10:19 EST 2007 | tonang
We use M/C printer Samsung SP400V with M/C setting : - Auto Cleaning time 15 ea - SQG down lenght (mm); Front 0.5 Rear 0.5 - SQG Presure Front 0.5 KG, Rear 0.5 Kg - Print speed Front 30 mm/sec, rear 30 mm/sec M/C reflow Heller 1707 EXL, with setting
Electronics Forum | Sat Apr 17 18:37:11 EDT 2010 | jlawson
I personally would be wary of heller1707EXL and as I have many customers that find them not too repeatable due to cross profile variance... MarkIII not sure about. Always check perspective oven for this if you can...simple trick is to run blank PC
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 | Thu Mar 21 16:45:31 EDT 2013 | dyoungquist
We have been using a Heller 1707EXL (7 zones + 1 cooldown zone) for lead free (ROHS) soldering since 2007 with good results. I wouldn't go any lower than 7 heat zones though. If I may brag a bit....The IPC-7095 revision C standard was released a fe
Electronics Forum | Mon Dec 14 10:51:02 EST 2015 | dyoungquist
We have a two Heller ovens, 1707EXL (2006) and 1707MK III (2014). We use them for lead and lead-free reflow soldering including all the tricky components such as BGAs. You may want to go with 8 or 9 zones if you are running high volume but a 7 zone
Electronics Forum | Wed Jun 24 20:48:48 EDT 2020 | kumarb
Hi. Could we trouble you for more info on this process? We did rename the .ovw file so we have a backup. Then ran the wizard which is asking many questions we left as defaults. Then on page 6 there are the max temp for each heater. From the user manu
Electronics Forum | Mon Sep 27 16:52:48 EDT 2021 | aex
During production the temperatures on the last 3 zones are approx. 20F higher than the setpoint. The other zones are operating within spec. We checked power, I/O, SSR's, thermocouples, and exhaust, but the issue remains. We did not check resista
Electronics Forum | Wed Apr 13 12:39:20 EDT 2022 | SMTA-64386699
We produce some heavy copper multi-layer boards. 4-6 layer typ with 3oz throughout. WE currently are using a Heller 1912EXL with belt speed around 32-36 in/min. I am looking to replace this oven with a more efficient unit. To the best of my knowledg
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