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Hello, just a quick questions: do you encounter PCB with one... - Oct 27, 2023 by DanLilie

We have a few 1200mm PCBs, and some 600mm as well. ... - Oct 27, 2023 by ProcEng1

Thanks for reply, where are you working? and do you may have... - Oct 27, 2023 by DanLilie

Most of the long boards are some kind of LED lighting. From... - Oct 30, 2023 by ProcEng1

We do have 2 types of PCBs - 360 * 505 mm 2.22 mm thick, 140... - Nov 02, 2023 by MagyarT

thanks, I highly appriciate every single aswere. I guess the... - Nov 02, 2023 by DanLilie

Yes, at least our boards are. Because the processes are set ... - Nov 03, 2023 by MagyarT

Do you have any question in particular, or checking the mark... - Nov 06, 2023 by Evtimov

I just want to figure out for what applications or end produ... - Nov 07, 2023 by DanLilie

As you can see from the replies, lighting/displays is the bi... - Nov 07, 2023 by Spoiltforchoice

Well it depends on the product you are making ... - Nov 18, 2023 by Harry69

Before we purchased the printer capable of 1500mm stencils, ... - Nov 20, 2023 by ProcEng1

DanLilie

#90144

BIG PCB's | 27 October, 2023

Hello, just a quick questions: do you encounter PCB with one side longer than 500mm? If yes how big is the PCB approx and for which end product are they made?

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ProcEng1

#90145

BIG PCB's | 27 October, 2023

We have a few 1200mm PCBs, and some 600mm as well.

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DanLilie

#90152

BIG PCB's | 27 October, 2023

Thanks for reply, where are you working? and do you may have an idea about the end product?

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ProcEng1

#90156

BIG PCB's | 30 October, 2023

Most of the long boards are some kind of LED lighting. From the 4ft tubes that go in drop ceiling fixtures to custom lighting fixtures.

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MagyarT

#90178

BIG PCB's | 2 November, 2023

We do have 2 types of PCBs - 360 * 505 mm 2.22 mm thick, 14000 components in total. These go in satellite communication matrixes.

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DanLilie

#90181

BIG PCB's | 2 November, 2023

thanks, I highly appriciate every single aswere. I guess the boards are quite heavy and expensive. Will this kind of boards also got through rework if necessary?

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MagyarT

#90186

BIG PCB's | 3 November, 2023

Yes, at least our boards are. Because the processes are set up correctly, the rework made on these boards is at most a couple of bad solder joints on DFN6 and DFN8 footprints. We really must be careful with handling though.

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Evtimov

#90198

BIG PCB's | 6 November, 2023

Do you have any question in particular, or checking the market for a new machine?

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DanLilie

#90201

BIG PCB's | 7 November, 2023

I just want to figure out for what applications or end products big PCB's are used.

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Spoiltforchoice

#90203

BIG PCB's | 7 November, 2023

As you can see from the replies, lighting/displays is the big one, it's also the example customer sales will use when they are offering machines that can handle large boards.

We manufacture large boards occasionally and they are typically backplanes for large scientific instruments, however they tend stop around 500mm. We have also built very thick large boards for motor control, they had silkscreen on indicating quite a lot of hardware was being bolted/soldered onto the board later on.

It is still fairly non standard as a capability so engineers shouldn't assume their normal manufacturing can handle past ~510mm. In fact even 510mm is longer than many lines can handle if they haven't chosen a printer from one of the big 3/4 manufacturers.

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Harry69

#90237

BIG PCB's | 18 November, 2023

Well it depends on the product you are making

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ProcEng1

#90243

BIG PCB's | 20 November, 2023

Before we purchased the printer capable of 1500mm stencils, we actually built a printer. We used a table top style where you squeegee by hand. Purchased longer tube stock and extended everything. It wasn't pretty and it wasn't fast, but it allowed us to run some small batches of LED strip boards to get the rest of our process dialed in and to be able to produce for the new customer. That contraption has long since been retired to storage, but I bet it still works. Pretty simple design.

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