IR rework station

[camikazi]

hopefully i am in the right forum, So many options are on the net, trying to have one that does everything from small to bigger chipset.

Any experience and recommendation. much appreciated

[thesloc]

Re: IR rework station

An ample preheater is paramount to good rework.

On the high-end you have typical ACHI Dark IR machines ($1000+)

On the higher end you have Jovy Systems RE-7500 ($1,500+, German quality)

I wouldn't shell out more than that.

On the low end, you have systems by Puhuit (less than $500 on eBay). I have experience with the T-862++ station, which is basically very low-end. The preheating plate is very small and does not heat past 100C, which is useless for BGA rework. I have bought an external heater since then.

The IR beam pulsates, which makes the analysis of real-time temperature more difficult. I would suggest spending more if you want consistent and more professional results.

[ecking767]

Re: IR rework station

I just purchase the T-890 by Puhuit, I will receive it today and I'm very eager to play around it.After doing research and watching lots of you tube video I decided to go with the T-890 because of the 8 preset wave for reflowing and soldering. The cost is $910 shipping included directly from the factory. Be careful buying from eBay. I will update you later on how the T-890 perform.

Also I own the 862++ by Puhuit it only good for small BGA and SMD chips less then 30mm. I was thinking about selling the T-862++ and buying the T-835 along with the T8280 Heater Plate. The T-862++ does this pulsing which take a little time to remove the chip. A hot air gun can do about the same thing in less time.

the T-835 don't pulse like the T-862++ and does the same chip size as the T-862++.

So my goal is to have T-835 along T-8280 and the T-890 on my work bench.

http://www.puhuit.com/main/page_home.html

[thesloc]

Re: IR rework station

Does the T-890 pulse? Can you create custom profiles?

[ecking767]

Re: IR rework station

Does the T-890 pulse? Can you create custom profiles?

I just unpack the unit, assemble and now I am reading about setting up the unit.

can you create custom profile? yes

does it pulse? no the IR turn on according to the wave profile temperature setting and so does the heater plate

I just remove two BGA chips with no problem.

[thesloc]

Re: IR rework station

Very good! Do you have any pics?

[Peter9DO]

Re: IR rework station

I have a Puhui T870A. This machine can tackle all types of chips which is GREAT! However it lacks the ability to make profiles. Making this machine a little harder to get used to, but once you have it down, you don't have to sit there and wonder why the profile you made 2 months ago isn't working anymore (Many factors will play a roll in that kind of situation). Rather you have a trained eye on what the chips do when they are ready to come off or even be soldered back on. In my opinion, I like the point that I don't need a profile to do the work for me, rather I am the profile and can make adjustments as needed on the spot.

Now, I also would like to explain to you that learning how to reball is not easy and it takes practice. You will popcorn many chips, along with the lingering smell of burnt electronics wafting in the air! You will also figure out it's not all about the machine you use on how accurate the job gets done. Reballing is like an art, a very precise art, all the elements must come together just right and there is no margin of error that is acceptable, that will not come with time consuming consequences. I hope if you decide to take on the challenge of reballing that you are not thinking this is going to be an easy way to make money and you're going to be a pro overnight, because it will not happen. Trial and error my friend, it's all about trial and error. Take it from me, I thought I was gonna hit it rich overnight and couldn't figure out why more people don't do this. It took me quite some time to be able to do the whole process of removing the chip, cleaning the chip, reballing and applying the chip back to the board.

I hope you do purchase a machine and get to using it. If you have any questions, which I'm sure you will, please feel free to give me a shout!

[ecking767]

Re: IR rework station

I have a Puhui T870A. This machine can tackle all types of chips which is GREAT! However it lacks the ability to make profiles. Making this machine a little harder to get used to, but once you have it down, you don't have to sit there and wonder why the profile you made 2 months ago isn't working anymore (Many factors will play a roll in that kind of situation). Rather you have a trained eye on what the chips do when they are ready to come off or even be soldered back on. In my opinion, I like the point that I don't need a profile to do the work for me, rather I am the profile and can make adjustments as needed on the spot. !

I was looking at the BIRD SMART DIGITAL 5000 PROFESSIONAL and I decided not to buy because of this statement:

- PLEASE DO NOT BUY THIS MACHINE IF YOU DO NOT KNOW BASIC CONCEPTS OF PHYSICS, HEAT CURVES AND SLOPES

http://www.ebay.com/itm/BIRD-AC-5000...item336906e1da

I would rather be able to modify a wave curve then not knowing where to start. I don't have enough knowledge about PHYSICS, HEAT CURVES AND SLOPES. So I didn't want to take chance of having a $1100 unit and being lost on getting it to work for me. So The preset wave curves on the T-890 work for me for now and if I need to modify these preset curves I can and save it for future usage.

Also I didn't just want to buy Puhui T870A because of the lack of preset wave curve. This concept is very similar to using a Hot air gun.I think there should be some regulation of the heat or a micro-controller regulating the heat so you don't burn the chip or damage the board.

[PCBONEZ]

Re: IR rework station

You need the same knowledge no matter what the unit is.
.
Don't let the words scare you though.
Do some study on the web. It's all there.
.

[Toasty]

Re: IR rework station

>>So I didn't want to take chance of having a $1100...<<

Please. If you see that for $1,100, let me know immediately...

I'll snap that money right up.

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((( It's $1,750-$1,900 everywhere else. )))

Toast

[ecking767]

Re: IR rework station

>>So I didn't want to take chance of having a $1100...<<

Please. If you see that for $1,100, let me know immediately...

I'll snap that money right up.

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((( It's $1,750-$1,900 everywhere else. )))

Toast

I'm off by $200.00 its 1300.00 (zone 3) if you live in the USA and shipping is included. You can buy directly from this website. Don't buy from any eBay seller with out doing some research about the seller.

http://www.puhuit.com/main/page_buy_..._stations.html

[Peter9DO]

Re: IR rework station

I will tell you that any machine you buy, you will burn chips! It just goes hand in hand with learning how to use it. It's not anything to be ashamed about it's part of life (well people like us). Anyways, you really can't go wrong with a ACHI or a BIRD, but you will drop some cash for it! Again, just because you spend a lot of money does not make your skill level any higher! You want to look into what the best flux is for the job, if your going to use direct heat or indirect heat for stencils, there are different specs on Leaded solder balls and non-leaded. Where your praised upon profile doesn't know these things, you will be programing profiles for every board. Also if you live in an area that has drastic temp changes and humidity that's another factor that will add to your profile, along with the aging bulb. Just somethings to point out that having units that are a little more technical are not always the way to go! But hey, it does look good!

[Peter9DO]

Re: IR rework station

By the way, the website that you are buying the machine from is a trusted site and they are good people! Anyone from DGC is very helpful and they all around good people. When I first bought my Puhui, I bought from some other person and it was a scam. They sent me a machine that didn't work correctly and DGC pointed it out for me, before I lost my money. Anyways, I wouldn't buy a BGA welder from anyone else but them, they are on eBay as well and you might be able to find a better price there, but contact DGC and ask them what are their eBay user names (they have like 10 of them).

[ecking767]

Re: IR rework station

By the way, the website that you are buying the machine from is a trusted site and they are good people! Anyone from DGC is very helpful and they all around good people. When I first bought my Puhui, I bought from some other person and it was a scam. They sent me a machine that didn't work correctly and DGC pointed it out for me, before I lost my money. Anyways, I wouldn't buy a BGA welder from anyone else but them, they are on eBay as well and you might be able to find a better price there, but contact DGC and ask them what are their eBay user names (they have like 10 of them).

I totally agree, I brought my T-862++ from eBay. The seller claim to be a USA seller. So my first thought was great the product is already in the USA. A couple days have past the seller email me DHL tracking number which indicate the shipping origin was China. Now I had to wait about 7 days for delivery. Once I received the T-862++ its was damage but not too bad. The CD com with the instruction manuals crack and the green lens that cover the displays one was cracked. The packing wasn't that great. There was no Styrofoam compartment inside the box to prevent the unit from moving. Lucky for me the unit survived the trip to the USA.

Comparing how my T-890 came from the Puhui, its was perfect! All parts had its own Styrofoam compartment. So nothing move during shipping. There was no problem at all.I will buy again directly from Puhui in the future.

[ravi_1617]

Re: IR rework station

can any one tell T890 profile details like which profile is for which chip removal ,reballing ,CPU socket removal, NVIDIA ,ATI or INTEL CHIP REWORK. using since 1 month .Before this I have T862++ along with I also used atten hotair blower somethime success somethime failure with popcorn .Intel south bridge were 95% successful REBALLING .where as NVIDIA 30% successful . as said by ( Peter9DO) its a challenging job not like a tailor job to cut an stitch a cloth and you get the prize .I firstly used T862++ for 2 1/2 year after trying for every day with different ways /temperature/paste /flux /liquid flux .every thing available after 7 months First Intel south bridge chip was reballed swapping from old Mainboard .even after that failure with new chip again.but still not left it keep on trying still trying trying trying .Its really great website for technical person .where people speak truth what they have experienced in life .really great site to be with THANKYOU for helping each other.THANKYOU

[TheBGAstoreUSA]

Re: IR rework station

Many of you above only looking for cheapest available price? You shouldn't only look into cheapest price available on the market! Make sure you have someone your back after sale!

wouldn't you rather have 1200 technicians who are always there for you to answer your questions! What about forums, review, BGA TV? only The BGA store provide that!

They have office in UK , USA and Hong Kong

I

[TheBGAstoreUSA]

Re: IR rework station

An ample preheater is paramount to good rework.

On the high-end you have typical ACHI Dark IR machines ($1000+)

On the higher end you have Jovy Systems RE-7500 ($1,500+, German quality)

I wouldn't shell out more than that.

On the low end, you have systems by Puhuit (less than $500 on eBay). I have experience with the T-862++ station, which is basically very low-end. The preheating plate is very small and does not heat past 100C, which is useless for BGA rework. I have bought an external heater since then.

The IR beam pulsates, which makes the analysis of real-time temperature more difficult. I would suggest spending more if you want consistent and more professional results.

Go for Jovy re7500! They have support after sales while other don't!

[Deusjevoo]

Re: IR rework station

Go for Jovy re7500! They have support after sales while other don't!

Hope not to late.
But if you buy a jovy, go for the RE-8500.
The 7500 is ok for small stuff like cellphones etc, it has a to small preheater for larger PBCs.

[sasser]

Re: IR rework station

Anyone can share the jovy re8500 profile setting. Downloaded from jovy website some not work. What your preheat temp,soaking temp,reflow temp for leaded and lead free

[Sparks88]

Re: IR rework station

i have a 7500 and found the profiles just a guide, a lot of things can affect the reflow/reball like room temperature, type of flux, thickness of board, etc, your best bet is to practice on a few scrap boards and work from there, i dont have a set profile i prefer to set the machine running and do things more "hands on", i get good results that way