Author Topic: Affordable crimp tools for small connectors (Dupont, etc.)  (Read 10666 times)

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Online nctnico

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #75 on: November 29, 2020, 10:45:49 pm »
For Molex KK the official service tool (order number 0640160201) is still in the affordable range at around $135 and it can crimp other series as well.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 
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Offline cjs

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #76 on: December 23, 2020, 04:05:56 pm »
Well, looks like I'm rather late to the party here, though I bought my crimper well before this thread started. I picked up one that's been mentioned slightly on this thread, the Preciva PR-3254. (It seems to be getting harder to buy; it's been unavailable on amazon.co.jp for more than half a year now, though it seems still to be available on amazon.de. I've never seen it on AliExpress, as far as I can recall.)

Like the TZ-4228B /  SN-4228B, the innermost die is designed for "dupont" connectors:
[attach=1]

My first hundred or so connectors had about a 25% success rate, and the second hundred about 66%, but these days I'm doing much better. None of my bad connections appear to be due to the tool itself, but with my skill at correctly positoning the connector in the crimp nest (not so difficult) and the wire in the connector (much more difficult). When the crimp is good you can give the wire a very hard tug and it will not come loose from the connector.

Here's a photo of some early results, an ok (albeit with too much conductor stripped) and an incorrect (mispositioned connector and wire) crimp. (My current work looks better than this, but I don't have any photos handy.)
[attach=2]

I've not used this with anything other than dupont as of yet, nor have I used any other crimp tools, so I can't really compare it. (I'm thinking I'll grab a TZ-4228B, though, since they're cheap enough to be worth it to learn a bit more about the differences between crimp tools.) But I am pretty happy with the results of this one, and from the problems and results I've seen others having, I suspect a good part of their issues is that the die is incorrect. For the rest, well, positioning, positioning, positioning.

I've found that with the separate M-shaped conductor punch and round-shaped insulation punch there's a not insignificant "step" from latter to the former, and it can work to push the insulation up to butt against that step at the top of the entry. It doesn't seem to make much difference whether the wire is at the top (against the punch) or the bottom (against the anvil that pushes up on the base of the connector); in both cases the crimp seems to come out the same.

And hey, use your dominant hand to insert the wire, even if you have to turn the crimper around, and even if you have to switch hands to finish the crimp. Surely it can't be the case that most You-tubers are left handed....

(If anybody knows what's wrong with the inline attachment feature that's obviously not working here, feel free to PM me.)
« Last Edit: December 23, 2020, 04:21:46 pm by cjs »
 
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Offline BlackICE

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #77 on: December 30, 2020, 01:41:49 am »
I ordered one if these with the connectors kits. I hope it arrives and works OK.

https://www.aliexpress.com/item/4001044611583.html?spm=a2g0s.12269583.0.0.22ec3002WejQlI
 
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Offline profanum429

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #78 on: February 06, 2021, 01:07:03 am »
I ended up finding a new-in-box Molex 11-01-0208 for the SL contacts; they are the same pitch and I like the header system with latches and the contacts aren't too bad on price. They seem relatively compatible with plugging into Dupont style, but the overall SL system is pretty good I think.

https://www.ebay.com/itm/Molex-11-01-0208-22-24-30-36-AWG-Hand-Crimp-Tool-New-In-Box-Instructions/233847797157?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 is the tool I bought; I offered the guy $100 and he accepted so you can probably get them for that or maybe even cheaper. They showed up today and like expected crimp the SL contacts (male and female) perfectly. I'm pretty happy with the purchase especially after fiddling with the usual assortment of SN-whatevers. I figure I'll just stick to SL terminals on future boards; a little big but I'm liking them.
 

Offline seanspotatobusiness

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #79 on: May 23, 2021, 05:34:07 pm »
Are the TZ-4228B and SN-4228B the exact same tool?
 

Offline Joebeazelman

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #80 on: June 22, 2021, 05:28:39 am »
I feel your pain. Shopping around for a good set of crimpers is a bewildering experience. There are literally hundreds of brands to choose from with most being rebrands of the same Chinese-made set. It's tempting to just pick the most expensive one because it often tends to be the most popular or highly recommended, such as the Engineer brand.  It doesn’t necessarily, however, guarantee the best value for your money.  I have some tips for selecting a good one along with a couple of recommendations.

You can often discern the quality of the crimpers from the photos. The best crimpers have precision cut and hardened jaws. You can tell by the jaw’s razor-sharp edges and corners and its crisp profiles. The surface finish on the jaws is smooth and even polished in order for the wings to smoothly roll inside the die profile. Cheaper ones are either coated or blued to hide surface defects.

All that said, I have had nothing but stellar results with the iWISS IWS-3220M with JST and Dupont-styled pins. I have the older model with the blue grip.  After trying several cheap and expensive ones, it's the only one that gives me a consistently strong factory quality crimp.  The main issue with all the ratcheting type crimpers is the insertion and alignment of the terminal or pin.  This one is no different, but the narrow jaw width gives you good visibility from both sides. I can only vouch for its performance on JST and Dupont Pins. It’s offered under other brands.  At $23, they are a no brainer:

https://www.amazon.com/IWISS-IWS-3220M-Connector-0-03-0-52mm%C2%B2-Ratcheting/dp/B078WPT5M1/

The best crimpers I have used for larger terminals are the Zhushan VSB series. This is a slept-on crimper! It has a unique design and feels more substantial than crimpers that cost over $100.  The action feels very smooth and effortless in the hand.  At well under $20 a pair, they are a steal:

https://www.amazon.com/Crimping-Zhushan-0-5-6mm%C2%B2-Insulated-Terminal/dp/B08KGD68FN/

https://www.amazon.com/Terminal-Zhushan-0-5-1-0mm%C2%B2-Self-Adjusting-Non-Insulated/dp/B08L7SDYGY/

They offer other models but for some reason, they don’t show up readily on Amazon searches, so you may have to Google to find them.

 

Offline tooki

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #81 on: June 22, 2021, 06:03:58 pm »
I feel your pain. Shopping around for a good set of crimpers is a bewildering experience. There are literally hundreds of brands to choose from with most being rebrands of the same Chinese-made set. It's tempting to just pick the most expensive one because it often tends to be the most popular or highly recommended, such as the Engineer brand.  It doesn’t necessarily, however, guarantee the best value for your money.  I have some tips for selecting a good one along with a couple of recommendations.

You can often discern the quality of the crimpers from the photos. The best crimpers have precision cut and hardened jaws. You can tell by the jaw’s razor-sharp edges and corners and its crisp profiles. The surface finish on the jaws is smooth and even polished in order for the wings to smoothly roll inside the die profile. Cheaper ones are either coated or blued to hide surface defects.

All that said, I have had nothing but stellar results with the iWISS IWS-3220M with JST and Dupont-styled pins. I have the older model with the blue grip.  After trying several cheap and expensive ones, it's the only one that gives me a consistently strong factory quality crimp.  The main issue with all the ratcheting type crimpers is the insertion and alignment of the terminal or pin.  This one is no different, but the narrow jaw width gives you good visibility from both sides. I can only vouch for its performance on JST and Dupont Pins. It’s offered under other brands.  At $23, they are a no brainer:

https://www.amazon.com/IWISS-IWS-3220M-Connector-0-03-0-52mm%C2%B2-Ratcheting/dp/B078WPT5M1/

The best crimpers I have used for larger terminals are the Zhushan VSB series. This is a slept-on crimper! It has a unique design and feels more substantial than crimpers that cost over $100.  The action feels very smooth and effortless in the hand.  At well under $20 a pair, they are a steal:

https://www.amazon.com/Crimping-Zhushan-0-5-6mm%C2%B2-Insulated-Terminal/dp/B08KGD68FN/

https://www.amazon.com/Terminal-Zhushan-0-5-1-0mm%C2%B2-Self-Adjusting-Non-Insulated/dp/B08L7SDYGY/

They offer other models but for some reason, they don’t show up readily on Amazon searches, so you may have to Google to find them.
I agree with most of what you say, but I do question your DuPont crimps, since (as this thread explains at length), they are categorically impossible to crimp correctly in a crimper without a circular insulation die, which the 3220M does not have.
 

Offline tooki

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #82 on: June 22, 2021, 06:04:38 pm »
Are the TZ-4228B and SN-4228B the exact same tool?
I would assume so. I haven’t seen anyone but Toozo sell it.
 

Offline Joebeazelman

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #83 on: July 04, 2021, 05:43:59 am »
Are taking about the same dupont connectors?  Here is what I consider to be dupont connectors:

 
« Last Edit: July 04, 2021, 05:46:55 am by Joebeazelman »
 

Offline tooki

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #84 on: July 04, 2021, 09:45:18 am »
Are taking about the same dupont connectors?  Here is what I consider to be dupont connectors:


Yep. The offset triangular insulation wings require a circular die to crimp correctly. They aren’t supposed to penetrate the insulation.

Perhaps share some good pictures of your crimped contacts?
 

Offline TheBay

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Re: Affordable crimp tools for small connectors (Dupont, etc.)
« Reply #85 on: July 08, 2021, 10:29:26 pm »
I normally don't cheap out on crimp tools, but I needed to do some Dupont and JST connectors and bought a "Preciva" branded crimp tool as I could get it next day on Amazon. All I can say is wow it exceeded my expectations and does a perfect crimp every time.
 
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