Author Topic: SMD Tweezers - recommendations for manual pick and place tools  (Read 26862 times)

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Offline Pat Pending

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Simply put, what are the good brands/styles of SMD tweezers for 0603 sized devices?
I don't understand how tweezers can be marketed as ESD safe - anyone?

« Last Edit: March 11, 2013, 06:55:55 pm by Pat Pending »
 

Online nctnico

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Re: SMD Tweezers - recommendations
« Reply #1 on: March 11, 2013, 05:59:04 pm »
If you mean a dual solder iron: forget about the one from Aoyeue. The tips are utter UTTER UTTER crap.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline jpb

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #2 on: March 11, 2013, 07:46:07 pm »
I don't understand how tweezers can be marketed as ESD safe - anyone?
The ones marketed as ESD safe are just conducting. I think metal ones are also safe though perhaps they are too conducting (i.e. the ESD safe ones
represent some resistance so safely conduct any static to ground, assuming the user is grounded).

I guess non-conducting plastic tweezers are the ones that are ESD Unsafe.
 

Offline LyTeo

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #3 on: March 11, 2013, 07:59:31 pm »

 assuming the user is grounded
[/quote]

I don`t think you can make that assumption in amateur/home labs...
 

Offline nanofrog

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #4 on: March 11, 2013, 08:33:54 pm »
Simply put, what are the good brands/styles of SMD tweezers for 0603 sized devices?
I don't understand how tweezers can be marketed as ESD safe - anyone?
Hand tweezers (I presume this is the case) or soldering tweezers?
If hand tweezers, are you looking for styles, or brand as well (some brands may call the same/equivalent profile by a different P/N)?
What's your budget?

The ones marketed as ESD safe are just conducting. I think metal ones are also safe though perhaps they are too conducting (i.e. the ESD safe ones
represent some resistance so safely conduct any static to ground, assuming the user is grounded).

I guess non-conducting plastic tweezers are the ones that are ESD Unsafe.
If the metal is coated with either epoxy or foam, the materials are resistive (10^6 - 10^8 range for example, usually via carbon mixed in it). Bare metal is conductive, so I suspect for it to actually be ESD compliant, the user must be resistive grounded (i.e. 1M resistor in the wrist/ankle strap).

Some of the plastic tweezers also use carbon in the mix to make them ESD compliant, but you're correct that the insulative versions are not.
 

Offline codeboy2k

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #5 on: March 11, 2013, 08:39:24 pm »
ESD safe usually means a grounded tip (or heating element), or at least a path to ground and static dissipative parts on the soldering station.

Also, from Doctor Solder

Q: What is the meaning of "ESD-safe" in soldering stations?
A: "ESD-safety" guarantees that static energy from your body (hands, etc.) will be "dumped" to ground via the plastic soldering iron handle or solder station plastic housing. Otherwise, the ESD would transfer to the soldering tip, thus destroying the IC you're soldering. The solder station essentially discharges your body's static charge to ground every time you pick up the soldering iron. (Naturally, you should take additional ESD precautions if you're handling *extremely* sensitive components -- and not rely on the solder station for all ESD-safety in the lab!)

Finally, there is a standard, apparently:



This is from the attached PDF:

"EOS ESD Technical Note 2009"




« Last Edit: March 11, 2013, 08:40:57 pm by codeboy2k »
 

Offline mikeselectricstuff

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #6 on: March 11, 2013, 08:57:54 pm »
Youtube channel:Taking wierd stuff apart. Very apart.
Mike's Electric Stuff: High voltage, vintage electronics etc.
Day Job: Mostly LEDs
 

Online nctnico

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #7 on: March 11, 2013, 10:18:35 pm »
If it comes to hand tweezers I got fed up with the cheap ones that bend too quick. I've got one of these to work with SMD components. Even 0402 is no problem at all:
http://uk.farnell.com/erem/7sa/tweezer-120mm/dp/1014360?Ntt=7-SA
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline img

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #8 on: March 11, 2013, 10:53:57 pm »
This is my favorite tweezer shape - slightly curved :
http://www.amazon.co.uk/Ebest-Precision-Electronic-Stainless-Tweezers/dp/B00BGWZNYY

By the way, which mains-controlled pick do you recommend?
 

Offline StevenB

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #9 on: March 11, 2013, 11:44:56 pm »
I recently populated some 0603's with these and like them:

http://www.amazon.com/gp/aw/d/B006RBANAS/ref=mp_s_a_1?qid=1363045215&sr=8-2&pi=SL75

They are stainless steel.
 

Offline Pat Pending

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #10 on: March 13, 2013, 12:27:20 am »
Thanks everyone for your replies.

It looks like its a tie between Vetus and Aven brands.
Digikey stocks Aven but prices get crazy real quick.

I'm favoring the curved style. I imagine that three knuckles would be resting on the bench during placement and that could
be potentially, a more stable pose. The forceps style tweezer held in a pen pose, only has the little finger resting on the surface - is that less stable?.

These tools are only a few bucks each, so one of each style is not out of the question.

Actually what I'm look for is eyelash tweezers and on ebay some of those are ESD rated! Who knew.
« Last Edit: March 13, 2013, 12:45:31 am by Pat Pending »
 

Offline eliocor

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #11 on: March 13, 2013, 01:39:11 am »
I suggest you to take a look at the following thread:
https://www.eevblog.com/forum/buysellwanted/on-ebay-lindstrom-tweezers/
My preferred ones are the SM-108 (I use them with 0603 and 0402, but they can manage 1206 and bigger cases).
Take also a look at some of the pictures I have made near 0402 components...
 

Offline nanofrog

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #12 on: March 13, 2013, 05:16:15 am »
Not a fan of the cheap tweezers at all. For example, the best pair of Pakistani tweezers I have (recently re-discoverd I had them), has rusted, even though they're supposed to be stainless.

My more recent stuff is Lindstrom (Ideal-tek = the actual manufacturer), and is of far superior quality. They're not cheap, but good tools rarely are (type of thing you could literally buy once in a lifetime). Just a thought anyway.  ;) I've had access to Dumont as well, and they're really good too. But for specialized electronics profiles, Ideal-tek has a lot more styles available than Dumont or Lindstrom (both are Swiss made).

Slightly less expensive, but still excellent quality, would be VOMM (German; ODM for Wiha if you can't find them otherwise).

BTW, Vetus is Chinese FWIW.
 

Offline ChrisGreece52

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #13 on: March 13, 2013, 06:16:45 am »
I got 2 pairs from ebay they are antistatic and pretty good at their work.
And they are pretty cheap.
 

Offline img

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #14 on: March 13, 2013, 09:50:34 am »
In the UK VOMM isn't that easy to get, unfortunately.
Some pretty usable tweezers are made by CK, but CK don't have some of the useful shapes. However, the quality is good.
If only more German tools were available in the UK...  ::)
 

Offline nanofrog

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #15 on: March 13, 2013, 02:50:19 pm »
In the UK VOMM isn't that easy to get, unfortunately.
Some pretty usable tweezers are made by CK, but CK don't have some of the useful shapes. However, the quality is good.
If only more German tools were available in the UK...  ::)
CK is probably rebrands them from another manufacturer, just as they do with their electronics cutters (which are made by Schmitz BTW; they sell directly from their own online store FWIW).

You might want to look for Ideal-tek (Swiss made), which is the ODM for other companies, including Lindstrom. They're available in the UK from Farnell, so there is at least one source for UK residents.  ;)
 

Offline jpb

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #16 on: March 13, 2013, 06:25:16 pm »
In the UK VOMM isn't that easy to get, unfortunately.
Some pretty usable tweezers are made by CK, but CK don't have some of the useful shapes. However, the quality is good.
If only more German tools were available in the UK...  ::)
Conrad sell 22 models of VOMM tweezers eg:

http://www.conrad-uk.com/ce/en/product/800538/Precision-tweezers-VOMM-3C-SA-Specification-Made-of-steel-anti-magnetic-with-a-fine-tip-Length-110-mm?queryFromSuggest=true

I have no connection with Conrad other than ordering some stuff off them. They are a little slow on standard delivery but generally I'm pleased with their service. BUT if you have a dog (I have two) beware of their green packing - it is made from corn starch and my dog scoffed the lot in about 3 seconds - I had to take him to the vets and I got a bill for £120!!!
« Last Edit: March 13, 2013, 06:28:32 pm by jpb »
 

Offline img

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #17 on: March 13, 2013, 08:45:37 pm »
Conrad sell 22 models of VOMM tweezers eg:

http://www.conrad-uk.com/ce/en/product/800538/Precision-tweezers-VOMM-3C-SA-Specification-Made-of-steel-anti-magnetic-with-a-fine-tip-Length-110-mm?queryFromSuggest=true

I have no connection with Conrad other than ordering some stuff off them. They are a little slow on standard delivery but generally I'm pleased with their service. BUT if you have a dog (I have two) beware of their green packing - it is made from corn starch and my dog scoffed the lot in about 3 seconds - I had to take him to the vets and I got a bill for £120!!!

God, that's scary. Hope the dog is OK and stays away from evil Conrad stuff from now on.

Personally, i just read tool-related threads for enjoyment. Tweezer-wise, i am well stocked up with Lindstrom at the moment.  A while ago i made a good-sized order to Schmitz and have been VERY happy with the products.

However, one can NEVER have too many good tools. Thanks, jpb and nanofrog! 
 

Offline nanofrog

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #18 on: March 13, 2013, 11:00:46 pm »
BUT if you have a dog (I have two) beware of their green packing - it is made from corn starch and my dog scoffed the lot in about 3 seconds - I had to take him to the vets and I got a bill for £120!!!
OUCH!

I hope your furry friend is doing fine since the visit to the vet.  :)

Tweezer-wise, i am well stocked up with Lindstrom at the moment.  A while ago i made a good-sized order to Schmitz and have been VERY happy with the products.
Didn't recall you had the Lindstroms (Ideal-tek) tweezers, or had actually gotten the Schmitz pliers/cutters.

Excellent tools IMHO, and should last a very long time, hopefully a lifetime for hobbyist use.  :)

BTW, if you find an ODM for a particular tool, please post it, as it could help save someone fund their electronics addiction hobby.  ;)
 

Offline img

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #19 on: March 14, 2013, 07:10:07 am »

BTW, if you find an ODM for a particular tool, please post it, as it could help save someone fund their electronics addiction hobby.  ;)

Absolutely!

As for the tweezers/pliers order, i think there was a discussion here a while ago, where some kind soul found a US dealer with good prices on Lindstroms, and I got a few from that dealer. Then either in the same or a concurrent thread the discussion turned to cutters, Schmitz was discussed and photos shown, and then a chunk of my bank account went to Schmitz.
 

Offline jpb

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #20 on: March 14, 2013, 10:10:56 am »
The dog was fine - the vet gave him a very expensive injection to make him sick because we thought the packing beads were polystyrene (we couldn't understand why the dog had eaten them, the vet was worried the dog might be going senile). The vet then noticed the few beads the dog hadn't eaten smelt of corn.

It turns out that Conrad use biodegradable corn-starch packing beads - generally I approve, but I e-mailed them to say they aught to issue a warning as apparently small children as well as pets are attracted to them, and though they are not toxic and are more digestable than polystyrene they are not a food stuff.

Conrad responded that they do issue a notice on the packing sheet - it turns out that they do, at the end of the list of items, but who reads packing sheets! I generally don't unless what arrives is not what I'm expecting.

Anyway, now I empty all the packing material into the outside bin as soon as I get it (though I'm careful not to leave any small components/tools etc among it)!
 

Offline Rerouter

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #21 on: March 14, 2013, 10:23:38 am »
I'm a fan of jaycar's non-magnetic pair, i use a pair for rewinding resistance wire onto bimetallic gauges, wire that is commonly mistaken for human hair strands,

http://www.jaycar.com.au/productView.asp?ID=TH1754

for a given contact area they grip far better than any other pairs i have available to me, and can be used right at the tip, the grip is also quite good on them,
 

Offline robrenz

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #22 on: March 14, 2013, 11:57:48 am »
Vacuum tweezers?  that is what I use.

Online Psi

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #23 on: March 14, 2013, 12:02:29 pm »
I bought a selection of tweezers from DX a year ago, most of them had crap tips which bent easy or became magnetic.
However these ones worked pretty well
http://dx.com/p/pro-skit-1pk-101t-120mm-stainless-steel-anti-magnetic-round-insulated-tweezers-green-193169

I dunno how they compare to expensive brands though.
« Last Edit: March 14, 2013, 12:07:34 pm by Psi »
Greek letter 'Psi' (not Pounds per Square Inch)
 

Offline poorchava

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Re: SMD Tweezers - recommendations for manual pick and place tools
« Reply #24 on: March 14, 2013, 02:43:49 pm »
aggreed, DX tweezers which have gooi logo on them (GOOT fake?) are total crap. They deform easily, are not precise and feel very light (in the bad way).

I use Xytronic tweezers, which i bought like 2 years ago: XY-2A-SA and XY-7-SA. They are good quality, surface finish is fine, and they are precise. Never magnetized and there is no sign of corrosion on them.

At work, I saw some "OHM" branded tweezers, made by this company: http://www.ohm-werkzeuge.de/englisch/index.htm. They seem to be manufacturing tweezers only, and quality is really awesome, but I was unable to find any big distributor that carries those.
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