For Sale - Complete YX SMT550 fab line, San Jose, CA

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John Plocher

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Dec 18, 2025, 1:38:07 PM (yesterday) Dec 18
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(Posted in Discord earlier this week as well)

YXing SMT550 4-head/50 feeder Pick and Place Machine, 60+ Yamaha pneumatic and electric feeders, in- and out-feed conveyor tables, Neoden manual stencil printer, Puhui T-937M reflow oven, ultrasonic board cleaner and dozens of reels of smt components. (Photos: https://www.spcoast.com/smt550.html)
I'm retiring from making model train electronics for the hobby market and have a small SMT fabrication line that needs a new home. The line is 6 years old and has seen moderate use. It all works well and is in great physical condition. Why post this here? I started out in the OpenPnP world with a cobbled together deconstructed 3D printer, moved "up" to a CharmHigh, and then wanted to get serious and imported a YXing SMT550. Over the last few years, I've used it to fabricate thousands of boards. Through it all, Jason and y'all were there in my email feed, keeping the excitement alive. As one does at Christmas time, I'd like to give back to the OpenPnP community and sell all this at an unreasonably low price to someone who will love it and use it, in their garage or as part of a maker community, maybe even as an OpenPnP conversion project. The catch? You pick it up (Bay Area /Central California) and move it to its new home. $3,500 for everything, or make an offer. -John Plocher at gmail You will need a lift gate truck, as the SMT550 itself is several hundred pounds and about a 4' cube, not counting the tables, carts and other equipment.

Luke Bayes

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Dec 18, 2025, 3:47:47 PM (yesterday) Dec 18
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This is a really great deal!

We're running one of these exact machines, thanks in part to John's recommendations and content from years ago.

Thanks John!

If I were not on the exact opposite side of the country, I'd take you up on this in a heartbeat.

For whatever it's worth, the main guy selling the SMT-550's at YXING (Jim) pulled some shady moves in the run up to our purchase and left me with a bad taste.

On the other hand, the main guy at HWGC (the actual manufacturer of these machines) named Mr. Liu has provided years long and excellent support for the machine.

If you're considering buying new, buy it from Mr. Liu at HWGC, not Jim at YXING.

Good luck to whomever wins the prize!

lb.



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Jonathan Oxer

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Dec 18, 2025, 3:50:22 PM (yesterday) Dec 18
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This is an incredible deal. If I wasn’t all the way over in Australia I’d be at your door with a truck in the time it took to get there!

For anyone thinking of taking up John’s offer, I think there’s a good chance you could do an OpenPnP conversion using the work I did for Kayo machines:

I believe the SMT550 and the Kayo-A4 may share the majority of their mechanical parts, and use the same motion control system. I haven’t worked with an SMT550 before though so I can’t guarantee it, and the risk would be on you.

Cheers

Jon

Thomas Gondek

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Dec 18, 2025, 7:07:44 PM (22 hours ago) Dec 18
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Hi.  Still available?  And / or are you also selling the electronic business?

Tom


John Plocher

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1:49 AM (15 hours ago) 1:49 AM
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> If you're considering buying new, buy it from Mr. Liu at HWGC, not Jim at YXING.

I wholeheartedly agree with this - Jim at YX was/is sales driven, while HWGC is in for the long term.  Getting software "for life" updates out of him was always a pita; I finally optimized my workflow to compensate for the software impedance mismatches and moved on, because the underlying hardware was rock solid.

  -John

John Plocher

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1:57 AM (15 hours ago) 1:57 AM
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The Kayo A4 were on the top of my list back in 2018 - in a good part to the openness of their sw/hw stack and the people working on getting openPnP to run on it.
The HWGC software that YX rebrands is a windows .Net stack that is easily decompilable and relatively understandable - I spent several months dinking with JetBrains .Net reverse engineering tools before I decided to focus on building boards rather than building a PnP machine :-) 

Nowadays, with the evolution of grblHAL and powerful controller boards like the Duet and Sienci Labs SLB-ext, doing a rip and replace on the SMT550 isn't as daunting as the few here that reanimated big iron finds from the 80's :-)

  -John
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