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Sunsoar Tech

4F, E block, Nanchang Huafeng
The Second Industrial Zone
Hangkong Road, Xixiang Town
Bao'an District, Shenzhen City
China


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Mob: +86 136 3279 3113

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Email: sales@sunsoartech.com

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Depaneling-Main depanel technologies PCB

Depaneling-Main depanel technologies

PCB

Depaneling

4 PCB Panel

Depaneling is a process step in high-volume electronics assembly production. In order to increase the throughput of printed circuit board (PCB) manufacturing and surface mount (SMT) lines, PCBs are often designed so that they consist of many smaller individual PCBs that will be used in the final product. This PCB cluster is called a panel or multiblock. The large panel is broken up or "depaneled" as a certain step in the process - depending on the product, it may happen right after SMT process, after in-circuit test (ICT), after soldering of through-hole elements, or even right before the final case-up of the assembly.

Main depanel technologies

There are six main depaneling cutting techniques currently in use:

  • hand break

  • pizza cutter / V-cut

  • punch

  • router

  • saw

  • laser (new)

Hand break

This method is suitable for strain-resistant circuits (e.g. without SMD components). The operator simply breaks the PCB, usually along a prepared V-groove line, with the help of a proper fixture.

Pizza cutter / V-cut

pizza cutter is a rotary blade, sometimes rotating using its own motor. The operator moves a pre-scored PCB along a V-groove line, usually with the help of a special fixture. This method is often used only for cutting huge panels into smaller ones. The equipment is cheap and requires only sharpening of the blade and greasing as maintenance.

it uses an aluminum based jig to secure the PCB in place.

Punch

Punching is a process where single PCBs are punched out of the panel through the use of special fixture. It is a two-part fixture, with sharp blades on one part and supports on the other. The production capacity of such a system is high, but fixtures are quite expensive and require regular sharpening.


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