Author Topic: EEVblog #542 - ZD985 Desoldering Station  (Read 106902 times)

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Offline dunkemhigh

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #75 on: November 03, 2013, 11:01:06 pm »
a source for those vacuum pumps? which used in these stations?

Not those particular pumps, but this 12V one from Sparkfun can't be a million miles away:

https://www.sparkfun.com/products/10398

As they say, it sure does suck.
 

Offline Synergy Hub

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #76 on: November 04, 2013, 03:35:19 am »
Thank you Dave for the presentation AND for you folks commenting back.  We have been looking for a good desoldering station that fits our needs ( read simple to use and affordable ). As a Non-Profit budget is everything, and is ease of use since we teach all ages.  Now we have a much better ( and trusted ) view of what is out there from the comments in the thread.  Thank you ALL.
« Last Edit: November 04, 2013, 03:48:20 am by Synergy Hub »
 

Offline Synergy Hub

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #77 on: November 04, 2013, 04:07:41 am »
Sorry, having trouble following some references in the thread.   This Photo is of Which unit... we like the metal chassis and left / right tool mount...  is it a "Good Witch, or a Bad Witch" and where is it available from?
This is the gun holder. 
 

Offline Excavatoree

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #78 on: November 04, 2013, 02:56:24 pm »
Sorry, having trouble following some references in the thread.   This Photo is of Which unit... we like the metal chassis and left / right tool mount...  is it a "Good Witch, or a Bad Witch" and where is it available from?
This is the gun holder. 

Sorry, I didn't label the pictures.  (I've edited the posts)

That is my Hakko 472D with Hakko 817 desoldering gun.  There is a pencil type desoldering tool available as well.

The consensus seems to be that while the Hakko is a very nice unit, for a small penalty in quality, there is a large savings.  That is, there are tools that are a better value - cost difference is larger than the quality difference.
 

Offline M. András

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #79 on: November 04, 2013, 05:10:59 pm »
a source for those vacuum pumps? which used in these stations?

Not those particular pumps, but this 12V one from Sparkfun can't be a million miles away:

https://www.sparkfun.com/products/10398

As they say, it sure does suck.
yeah but 500hours max operation time its sucks too
 

Offline dunkemhigh

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #80 on: November 04, 2013, 06:53:29 pm »
$0.03 per hour running cost. Cheaper than solder :)
 

Offline djlorenz

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #81 on: November 04, 2013, 10:13:57 pm »
hi guys, hi Dave! thanks to you i'm going to ebay looking for a new soldering/desoldering station  :-DD

i was looking for an hot hair soldering/desoldering station but now i seen this...
so i wanna ask you, is easy to desolder also with hot air?

i found a complete station hot air + soldering iron + spare parts for about 80euros in germany.. free shipping...
any suggests? i don't want to spend money twice for two items :D

cheers
Lorenzo
 

Offline djlorenz

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #82 on: November 05, 2013, 08:43:12 am »
i was looking for an hot air soldering/desoldering station but now i seen this...
so i wanna ask you, is easy to desolder also with hot air?

What do you want to desolder? smt or through-hole?

usually TH, but i wanna have possibility to desolder smd... that's why i was thinking about hot air station...
 

Offline hammy

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #83 on: November 05, 2013, 11:47:41 am »
usually TH, but i wanna have possibility to desolder smd... that's why i was thinking about hot air station...

For smt hot-air and/or tweezer-type tools are very popular. It all depends about the type of smt you want to desolder.
For th the vacuum-station is a really good tool.
Important is the question: Do you want to desolder the components with minimal thermal stress to re-use it? Or is it only important to get the component removed?

For me it is not only one tool. Sometimes I only use my solder station and solder wick, sometimes the tweezer-tool ... for some bga chips I used a heat gun and aluminium foil ... it all depends.  :-//

hammy
« Last Edit: November 05, 2013, 11:50:19 am by hammy »
 

Offline djlorenz

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #84 on: November 05, 2013, 01:41:44 pm »
usually TH, but i wanna have possibility to desolder smd... that's why i was thinking about hot air station...

For smt hot-air and/or tweezer-type tools are very popular. It all depends about the type of smt you want to desolder.
For th the vacuum-station is a really good tool.
Important is the question: Do you want to desolder the components with minimal thermal stress to re-use it? Or is it only important to get the component removed?

For me it is not only one tool. Sometimes I only use my solder station and solder wick, sometimes the tweezer-tool ... for some bga chips I used a heat gun and aluminium foil ... it all depends.  :-//

hammy

i know, i'm a hobbist so i don't use them every day the same thing... i had a lot of problems deoldering some TH connectors, ICs from board for re-using them... or some items i need to change for fixing a device.... it depends...
i think i will start with hot air + standard solder tip station and try to desolder TH parts then if i need i will also buy the vacuum desolder station...
i wanna re-build my little lab and that's the occasion for spend some money :D

stupid question: can i also solder smd parts with hot air?
 

Offline hammy

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #85 on: November 05, 2013, 01:54:02 pm »
stupid question: can i also solder smd parts with hot air?

Yes.
Look at first this video from Dave:
http://www.eevblog.com/2011/07/18/eevblog-186-soldering-tutorial-part-3-surface-mount/
or this:
http://www.eevblog.com/2013/03/04/eevblog-434-smd-thermal-pad-drag-soldering-tutorial/

And then look this video, he use the hot-air station:
http://www.eevblog.com/2013/01/25/eevblog-415-smd-stencil-reflow-soldering-tutorial/

If you want to desolder through-hole stuff with a lot of pin's, like IC's and connectors, the best tool is the vacuum-station. Especially if you want to reuse them.

It is also necessary to get some practice. Make a dumpster dive and get some old boards. Desolder parts from it. Develop your skills.  :)

hammy
« Last Edit: November 05, 2013, 02:04:29 pm by hammy »
 

Offline djlorenz

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #86 on: November 05, 2013, 02:41:16 pm »
yep, that was a really stupid question, then i opened dave's channel and said... dammit, why i asked that?  :palm:

stupid question: can i also solder smd parts with hot air?

Yes.
Look at first this video from Dave:
http://www.eevblog.com/2011/07/18/eevblog-186-soldering-tutorial-part-3-surface-mount/
or this:
http://www.eevblog.com/2013/03/04/eevblog-434-smd-thermal-pad-drag-soldering-tutorial/

And then look this video, he use the hot-air station:
http://www.eevblog.com/2013/01/25/eevblog-415-smd-stencil-reflow-soldering-tutorial/

If you want to desolder through-hole stuff with a lot of pin's, like IC's and connectors, the best tool is the vacuum-station. Especially if you want to reuse them.

It is also necessary to get some practice. Make a dumpster dive and get some old boards. Desolder parts from it. Develop your skills.  :)

hammy
« Last Edit: November 05, 2013, 02:45:01 pm by djlorenz »
 

Offline poppniete

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #87 on: November 06, 2013, 09:56:53 pm »
Hi folks,

does anybody know what kind of thermal sensor is being used inside this Zhongdi desoldering gun? I couldn't find any information at all.

Regards,

Jan
 

Offline 99tito99

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #88 on: November 08, 2013, 05:47:14 am »
Just received my ZD985, $179.99 delivered from eBay seller memotronics_llc (http://www.memotronics.com).  Five day shipping from Houston, Texas, double boxed, very good.

Desoldered an UPS board similar to the one Dave did and it worked just as Dave showed.  No draaaama!

Differences between mine and what I saw on Dave's video:
1) All wires to the output plug are shrink-tubed, remembers Dave had a loose wire and it looked like no shrink tubing.
2) My solder collecting tube is clear (glass), Dave's was dark blue(?).
3) The spring in mine is an open coil, doesn't do much.  Dave's tight coil looks like a better design.
4) Color: Blue gun and case with white trim.

Copy of spare parts list attached.

Cheers, Mark
 

Offline poppniete

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #89 on: November 09, 2013, 09:13:25 am »
Hi folks,

does anybody know what kind of thermal sensor is being used inside this Zhongdi desoldering gun? I couldn't find any information at all.

Regards,

Jan

I did some measurements and it appers to be a K type thermocouple.

Regards,

Jan
 

Offline AndersAnd

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #90 on: November 11, 2013, 09:33:25 pm »
A couple of European webshops selling ZhongDi ZD-985

Evita (Lativa): 75.30 € (101 US$) http://www.evita.lt/en/det-1399631-desoldering-station-zd-985-80w-220v-480c.html

Panda (Bulgaria): 174.00 BGN (89 € | 119 US$) http://www.panda-bg.com/product.php?lang=en&code=321740
 

Offline AndersAnd

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #91 on: November 11, 2013, 10:37:36 pm »
The ZD-915 is available in the UK from Amazon at £84.99. The difference appears to be the way the holder is attached to the case and no sponge.

No, it's not. Only the gun is available.

That price would be really bad, too. For the same price you can get the ZD-917, which includes a 60W soldering iron:

http://www.octamex.de/shop/?page=shop/flypage&product_id=1445
Somewhat cheaper at CPC http://cpc.farnell.com/duratool/d00672/desoldering-station/dp/SD0138403?Ntt=SD0138403
Octamex only charges 57,50 € (48,14 £) incl. VAT for ZD-915 http://www.octamex.de/shop/?page=shop/flypage&product_id=1454&category_id=e321c44a79d30c8a3235116f2f4f6f25&/ZD-915_Digital_Entloetstation,_Entloetpumpe_kaufen.html
So it's still cheaper than CPC charging 65.94 £ incl. VAT.
 

Offline mos6502

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #92 on: November 12, 2013, 10:22:11 am »
for(;;);
 

Offline elgonzo

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #93 on: November 12, 2013, 10:38:02 am »
Octamex only charges 57,50 € (48,14 £) incl. VAT for ZD-915 http://www.octamex.de/shop/?page=shop/flypage&product_id=1454&category_id=e321c44a79d30c8a3235116f2f4f6f25&/ZD-915_Digital_Entloetstation,_Entloetpumpe_kaufen.html
So it's still cheaper than CPC charging 65.94 £ incl. VAT.

It is obvious that Octamex' price can't be trusted. Note that the product is not available in the Octamex store, you cannot even put it in the basket. Often the reason for not allowing customers to order an out-of-stock item is that prices in online stores are not being adjusted/updated for such items until the vendor confirms availability (together with a vendor price and approx. shipment date).
« Last Edit: November 12, 2013, 10:40:31 am by elgonzo »
 

Offline mos6502

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #94 on: November 12, 2013, 10:52:00 am »
The Octamex price is realistic, that's the amount these things went for:

http://www.ebay.de/itm/Professionelle-Entloetstation-80W-ZD-915-Vakuumpumpe-/310692568895

It's just that this thing seems to be sold out everywhere. Maybe they stopped making them and the factory switched to toilet seats or whatever ...
for(;;);
 

Offline elgonzo

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #95 on: November 12, 2013, 11:02:39 am »
The Octamex price is realistic, that's the amount these things went for:

http://www.ebay.de/itm/Professionelle-Entloetstation-80W-ZD-915-Vakuumpumpe-/310692568895

It's just that this thing seems to be sold out everywhere. Maybe they stopped making them and the factory switched to toilet seats or whatever ...

Thanks for the update. Considering the date of this ebay "sofortkaufen" auction was summer this year, the price indeed looks realistic.
 

Offline vasonline

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #96 on: November 12, 2013, 06:20:20 pm »
Hi,

I asked my local dealer about the Zdhongi station, and the Ajouya/CSI stations.
He found another one.
It is a bit more expensive: around 300€ euro's.

It does look good. (I think)
Anyone who recognises it?



Web site: http://www.soldering.com.tw/desoldering-station/SL-928.html
« Last Edit: November 12, 2013, 06:29:53 pm by vasonline »
 

Offline Fraser

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #97 on: November 12, 2013, 06:52:58 pm »
I do not recognise it but you need to consider the reliability of spare parts supply if you are going to spend that much on such a unit.
 

Offline arekm

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PLD/Linux Team. Electronics as a hobby.
http://readme.maven.pl/
 

Offline krivx

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Re: EEVblog #542 - ZD985 Desoldering Station
« Reply #99 on: November 17, 2013, 06:29:04 pm »
 


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