Australian Toaster Reflow Oven - Page 1
Forum section: electronics / general

author: justhawk
author_rank: Newbie
timestamp: April 07, 2015, 11:03:54 am
content: Hi all -I know toaster reflow ovens have been discussed on here a few times, but I'm looking for some suggestions for suitable candidate toaster ovens. As the title says it needs to be a model available in Australia.My research to date suggests that useful features / specs are:- Smallish - about 9L is good (quicker ramp up)- Quartz or crystal heating elements - also good for fast ramp up.Finally insulating the open with something like Reflect-A-GOLD will help the temperature performance.Any other suggestions and candidate ovens very welcomeEdit: The board size I want to reflow is 175 x 210 mm

author: HackedFridgeMagnet
author_rank: Super Contributor
timestamp: April 07, 2015, 02:52:28 pm
content: I think the ramp up time is less important than the ramp down time.ie. Get something powerful but importantly, badly insulated.Also heat elements on top and bottom, or possibly fan forced. (looking for even heat)A way to stop heat transfer by radiation.I think breville does some mini pizza ovens. >1500W if you can.Fan forced if you can.Although less mechanised, what I find easier is an old electric frying pan and then the hot air gun on top.if anything tombstones i just have the tweezers ready.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: April 07, 2015, 03:11:00 pm
content: Ramp-down is easy - just open the door.You want something with heaters top & bottom, a nice big clear window and a shelf that doesn't bump as the door is opened or closed

author: M4trix
author_rank: Frequent Contributor
timestamp: April 07, 2015, 06:52:44 pm
content: Speaking od which, it's almost past a year since I bought the Delonghi EO2131 oven and the reflow controller. Not even tried it yet.https://www.beta-estore.com/rkuk/order_product_details.html?p=242

author: mjrandle
author_rank: Contributor
timestamp: April 07, 2015, 07:34:01 pm
content: I've got a Breville 550 purchased from JB Hifi. Heating elements top and bottom is important for even heat distribution - looks like you will be reflowing relatively large boards. Fan forced / convection is important for same reason.Even with blanket insulation and reflective foil on inside, you probably won't achieve desired ramp up time. But experience will likely show that it's not that important anyway! As for ramp down, just open door as suggested above.I just use a thermocouple and turn off oven after it reaches a certain temperature, start the stop watch and then open door after a certain time. Works great for smaller boards that I reflow.Cheers,Mike

author: David_AVD
author_rank: Super Contributor
timestamp: April 07, 2015, 11:36:47 pm
content: We use a Breville BOV800 and it works a treat with leaded solder paste.

author: metalphreak
author_rank: Frequent Contributor
timestamp: April 08, 2015, 02:39:10 am
content: http://www.thegoodguys.com.au/sunbeam-9l-mini-bake-and-grill-compact-oven-bt2600#4 elements, 2 top and 2 bottom. Tray sits close to the middle. Has worked fine for me over the years.

author: justhawk
author_rank: Newbie
timestamp: April 08, 2015, 11:06:47 am
content: Firstly thanks everyone for all the replies - I really appreciate it.Quote from: metalphreak on April 08, 2015, 02:39:10 amThis one is nice and cheap, which is always handy - have you tried it with lead-free paste which is what I was hoping to use? It has a good power to size ratio, 1400W for 9L which seems good. Do you know if it has a fan? I thought a fan could be handy for even heating, especially given my relatively large board sizes. Any thoughts?Quote from: mjrandle on April 07, 2015, 07:34:01 pmThe BOV550 also looks good Mike, do you find you lose a lot of heat out the giant front window? Also are you able to solder lead free paste in this oven? I do worry that the 1500W might not be enough for the 22L capacity. I take it that this oven is a convection oven?

author: justhawk
author_rank: Newbie
timestamp: April 09, 2015, 09:25:37 am
content: Should mention I'm planning to use the reflow control Dave reviewed in blog #558.

author: notsob
author_rank: Frequent Contributor
timestamp: April 09, 2015, 09:35:23 am
content: some time ago, I found a suitably cheap small oven at aldi, elements top and bottom, as one is unlikely to find the same again, I bought a second to use for spare parts. Ok for leaded, has difficulty doing unleaded without a few mods, ie covering the window to reduce losses/

author: justhawk
author_rank: Newbie
timestamp: April 12, 2015, 06:17:24 am
content: Aldi is excellent for random things like this if you can find them!

author: pickle9000
author_rank: Super Contributor
timestamp: April 12, 2015, 06:32:10 am
content: Read this thread while thinking "mini pizza".

author: Staringlizard
author_rank: Newbie
timestamp: April 22, 2015, 08:19:04 am
content: Hi,Here is an alternative, I use it and it works well. Not sure if it is available in Australia though. Sorry if it is not.Korona 57002Regards,StaringL

author: JuKu
author_rank: Frequent Contributor
timestamp: April 23, 2015, 12:19:13 pm
content: > Smallish - about 9L is good (quicker ramp up)not necessarily: A bigger unit might have more heater element per volume.