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Help required selecting reflow oven

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Hi, I have a small assembly line that consists of a Semi-Au... - Jun 27, 2019 by SMTA-David   via SMTA


SMTA-David

#82900

Help required selecting reflow oven | 27 June, 2019

Hi,

I have a small assembly line that consists of a Semi-Automatic Stencil machine, a Samsung Pick and Place, a small IR reflow oven and a wave soldering machine.

The reflow oven is presenting the biggest bottleneck. The machine is a small IR (T960) machine is a 5-zone that has 3 heaters above and 2 below - not up and down for each zone). After looking around, it seems a convection oven will provide more even heat and the ones I see have both top and bottom heating per zone. My premises are a bit small, the current oven is only 1.5m long. The main options I see now for my budget are 5-Zone that is 3m long and an 8 zone that is 4m long. Is there a huge advantage of an 8-zone over 5 zone that I should squash up my work area to install one, or would a 5-zone be adequate. I only do production sporadically for our own product. Largest boards is 250 x 160mm, 1.6mm thick and not hugely dense. Thanks for any pointers.

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#82952

Help required selecting reflow oven | 3 July, 2019

An 8 zone oven will give you better thermal control over the whole process. It's useful for lead-free soldering, or for boards with varying thermal loads/shadowing, etc.

You can make a 5 zone work for lead free, provided the boards don't have significant thermal loads, but, the more copper, or large components you use, the more difficult it will become.

If you can, I'd recommend the 8-zone, as it should satisfy all of your needs now, and into the future.

Cheers, ..rob

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SMTA-Ray

#82984

Help required selecting reflow oven | 10 July, 2019

It's all about temperature versus time. The longer the over IE more zones the faster you can run. That doesn't seem to be the case for you so a 5 zone running a little slower will work. What many forget is that oven manufacturers can recommend what will do the trick for your application by sending them your worse case or highest through put board and have them run it for you and supply the profiles attained. Do this with 2 or 3 suppliers and you'll soon know what works best for you.

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SMTA-Richard

#82991

Help required selecting reflow oven | 13 July, 2019

Yes, it is time and temperature, but it is also speed and distance. Even though you can run a longer machine faster, the boards have a longer distance to travel and you do too, so the cycle time per board may not improve be reduced as much as you think. I am assuming this is a batch process I suggest you contact members in your local chapter and ask if you can visit their operation and observe their process and possibly run one or two of your boards and time them. It sounds like you have limited floor space - so, take your time and talk to people in your neighborhood. A reflow oven is very robust and I never heard of one being worn out so it will be with you for quite a while.

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#83000

Help required selecting reflow oven | 16 July, 2019

Specifications : S-8800 Number Of Heating Zones :Up8/Bottom8 Dimension (L*W*H)mm: 5310x1353x1490 Dimension (L*W*H)mm: 5310x1353x1490 Number Of Heating Zones : Up8/Bottom8 Length Of Heating Zones : 3121mm Control System : PLC+Computer Transmission Agent : Chain + Mesh Power For Warm Up : 30KW Power Consumption : 8KW Warming Time : Approx.25 minute Conveyor Speed Range: 300~2000mm/min Components Clearance: Top/ Bottom is 25mm Fixed Rail Side : Front Fixed (Option:Rear Fixed) Cooling Method: Forced-Air Motor and fan (Standard) I am the Sales&Service Engineer of Southern Machinery.Our machines can meet your needs/ shaoyong@smthelp.com

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#83001

Help required selecting reflow oven | 16 July, 2019

I am the Sales&Service Engineer of Southern Machinery.Our machines can meet your needs/ shaoyong@smthelp.com

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#83009

Help required selecting reflow oven | 16 July, 2019

Hello David

I see you information , Now you use the T960 samll reflow oven is can't meet your requirement anymore. According to your budget, i think the Jaguar 6 heating zones and 8 heating zones is very suit for you. I'm a sales engineer in Jaguar , Could you provide me your details contact information , i will show you our specification to you. We have a lot of customer in the world.

Emails:sales03@jaguar-ele.com Looking forward to your emails

Tony wang Shenzhen Jaguar Automation Equipment Co.,Ltd

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#83013

Help required selecting reflow oven | 17 July, 2019

Hi David: Don't forget to check the banner ads on the margins of this page. These companies support SMTnet.

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#83022

Help required selecting reflow oven | 18 July, 2019

Basic rules:

1. The longer the oven the better(if you have the space)- better temp control, better repeatability, better throughput. 2. Only convection - don't get IR heaters 3. Buy reputable brand machine

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#83023

Help required selecting reflow oven | 18 July, 2019

Or Vapour Phase... which could fit in a similar space, offer safe even heating and use less power.

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#83027

Help required selecting reflow oven | 18 July, 2019

Emil: I need your email address. Please click the link below my avatar to the left. Thanks

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#83044

Help required selecting reflow oven | 21 July, 2019

I use a lead free 3 zone essemtec oven which I love. It's on the smaller side (wish it was even smaller). It works fine in our application. Maximum width is 300mm and only uses 5-6kwh average (25A max). Made in Switzerland. For some reason I don't trust chinese ovens unless they come from companies like Heller. Precision, repeatability and reliability are not there for production enviornments.

Neoden has released a pro consumer model smart 3 zone oven that might suit your needs but I don't know how long it will last. Runs $2k. It does save on space.

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#83078

Help required selecting reflow oven | 25 July, 2019

Hi,

According to your information,5 zones reflow oven can't meet your requirmens now.We advice use 8 zones rlow oven.

These times we designed a new 8 zones reflow oven, more economic,more power save.And function is better than old units.

I m a sales manager of Oubel, if you are interested, pls email us: vicky@obsmt.com.

Waiting for your reply.

Thanks!

With BR,

Vicky Gao

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#83091

Help required selecting reflow oven | 27 July, 2019

Hello David

I'm very glad to see your demand,I'm Tony from Shenzhen Jaguar Automation Equipment Co.,Ltd. We are a professional SMT reflow oven manufacturer in China. According to your requirement , we have some solution can meet your pcb board . So If possbile,we can discuss it on emails,i will send you more information about our reflow oven and we can provide the best service on the world. Contact us will not let you regret,Choose a a cost-effective product。

Emails:sales03@jaguar-ele.com wechat/skype"+86 18271470720

Tony Best regard

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SMTA-David

#83097

Help required selecting reflow oven | 30 July, 2019

Thanks all for your replies.

I ended up getting an older second hand machine (2003 Heller 1707 EXL) from a local company upgrading their assembly line. It is in mint conditions and was used in air conditioned room and had maintenance every 3 months.

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#83738

Help required selecting reflow oven | 13 November, 2019

I suggest you buy 8 zone oven, its best for baking and you can easily control overflow of heat, I am also using this, I recently bought it from https://www.reecoupons.com/categories/black-friday and I easily can control heat whether its overflow or not, but its totally up to you, if you wanna buy 5 zones you can, these choices totally depend on you..

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