Lead trimming

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Looking for information on lead trimming after wave solder. ... - Dec 11, 2023 by SMTA-64387074 SMTA

Are components that need to be trimmed available on a reel? ... - Dec 13, 2023 by Tom

lead o matic is one we use for trimming leads after wave sol... - Dec 28, 2023 by triplettx3

What type of PCB? What type of component?..... There are TH ... - Dec 28, 2023 by Evtimov

SMTA-64387074

#90332

Lead trimming | 11 December, 2023

Looking for information on lead trimming after wave solder. Does anyone do this through automated equipment? I know ideally parts would be cut to length before insertion and not trimmed after wave solder but sometimes that is cost prohibitive. When necessary we have always hand trimmed with the proper type of pneumatic clippers but we have needed to increase our throughput substantially. To do so we purchased an automated pcb lead trimmer (KA-B6) which would be perfect if it didn't leave flagged leads. If the leads are flagged and we need to go over the boards by hand then the lead trimmer process is pointless. Open to process/different equipment suggestions. Thank you.

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Tom

#90342

Lead trimming | 13 December, 2023

Are components that need to be trimmed available on a reel? A lead trimmer that cuts from a reel of TH parts is fast and avoids post trimming. We also tried a bench top lead trimmer and its a terrible process; sold the machine after the first day. Boards or panels often warp slightly after reflow and wave which make trimming very challenging. Flagging was also a problem. There is probably a reason the Chinese are the only ones making these things.

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triplettx3

#90401

Lead trimming | 28 December, 2023

lead o matic is one we use for trimming leads after wave solder

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Evtimov

#90404

Lead trimming | 28 December, 2023

What type of PCB? What type of component?..... There are TH components that should not be trimmed at all. Some are sensitive to fractures, other times it is a bad design combination between board design and lead need trimming. Overall try to trim before. If after, more studies will be involved, unless you don't build anything sensitive or important.

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