Author Topic: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment  (Read 558 times)

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Offline henas

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ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« on: September 19, 2019, 10:56:33 am »
I wish I found some honest review before I bought it. It would save me a hassle returning it.

Thin barrel is a serious design flaw.
What I found thermal mass is insufficient, making it difficult to desolder any medium to large component.
Working with multi-layer PCBs close to impossible.
I learned after a few suctions tip's temperature may drop more then 100 deg Celsius - thermal mass too small.
Interesting ??? the  temperature on the display doesn't drop at all, showing maximum set temperature.
It appears the sensor is not in the right spot or the firmware is ignoring it.

Another problem I found, suction tube inside the barrel gets blocked easily. it is very hard to get it cleared again.
I found the tube just before enters glass collector is exposed, not covered by heater element - another design flaw.
Wild temperature dips probably contributing to the problem too.

As far as my experience ZD8915 is an absolute lemon, so beware.

Later I had a chance to test ZD-895 and end up buying ZD-915. Both thick barrel desoldering station from the same manufacturer.
ZD-915 doesn't block as easily as ZD-8915. I found heating element covers the tube sufficiently now.
Larger thermal mass due to thick barrel makes working with multi layer boards possible.
The ZD-915 is not perfect by any means but for the price I am quite satisfied.





 

 

Offline Gyro

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Re: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« Reply #1 on: September 19, 2019, 11:43:22 am »
Useful information, I hadn't even realized that there was a thin barrel version. It's hard to keep track of the changing model numbers.

P.S. Thick solid copper wire clears blockages better than the supplied steel rods. It transfers heat to the blockage more efficiently. Just don't hold it in your fingers!
« Last Edit: September 19, 2019, 11:45:46 am by Gyro »
Chris

"Victor Meldrew, the Crimson Avenger!"
 

Offline KL27x

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Re: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« Reply #2 on: September 20, 2019, 05:13:37 am »
I used 3mm hard piano wire. Slight bend towards the end, and ground to a sharp bevel. Spun in a drill.  Worked great for cleaning, and no waiting for stuff to melt. But the station didnt last long before I moved on.
 

Offline henas

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Re: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« Reply #3 on: September 20, 2019, 06:12:42 am »
Someone on the net suggested to wind some copper wire on the exposed section. The more the better.
I have never tested this fix but it makes perfect sense. Copper wire will increase thermal mass in this section helping sucked solder stay liquid.
 

Online tooki

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Re: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« Reply #4 on: September 22, 2019, 06:50:10 pm »
Useful information, I hadn't even realized that there was a thin barrel version. It's hard to keep track of the changing model numbers.
FYI: http://www.china-zhongdi.com/product/station/desoldering/

Looks like the 8000-series models are the “economical” models.
 

Offline snoopy

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Re: ZD-8915 Thin Barrel Desoldering Station - Huge Disappointment
« Reply #5 on: September 26, 2019, 01:44:58 pm »
I have one similar to the ZD-985 which is a combo with a soldering iron in it. Had it for years and had to replace the gun once because it burned out but it was very cheap to replace. It works really well with the right diameter tip. Bear in mind that a too wider opening and it won't suck the solder out of a hole ;)

cheers
 


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