What parts are picked?
How old are they?
Were they stored properly?
Are the recommended PM's performed?

Depends on the machine, feeder, nozzle and part.

I have parts that are far better than that and marginally designed material
that is worse.
Parts that vary more than the allowed tolerance tend to have low pick rates
and ones with inconsistent finishes, badly applied or inflexible tape and
difficult features for vacuum pick up are lower.

My information is on a machine that was spec'ed on performance rather than
price and has less than 4k hours on it.

It does a terrific job on the jobs in its wheelhouse and not so great on
ones outside the strike zone. The previous statement can be made for most
machines still in production.

A machine and tooling that has not been maintained will have much worse
results. Nothing new there.



On Tue, Sep 1, 2015 at 3:05 PM, Datacom - Juliano Ribeiro <
[log in to unmask]> wrote:

> Hello to all
>
>
>
> Whats the index acceptable to reject (component pickup error) in the pick
> and place machines?
>
> For example we have 4 NPM-W and today we reject rate is around ~0,03%. Is
> it
> number 0,03 good rate or not? Whats the index PPM to excellent performance
> to pickup in the pick and place machines?
>
>
>
> Thank you
>
>
>
> _____________________________
>
> Juliano Bettim Ribeiro
>
> DATACOM
>
> ENGENHARIA DE PROCESSOS
> Rua América Nº 1000 - Eldorado do Sul - RS CEP: 92990-000
> +55 (51) 8446-2135
>
> +55 (51) 3933-3000
>
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>  <mailto:[log in to unmask]> [log in to unmask]
>  <http://www.datacom.ind.br/> www.datacom.ind.br
>
>
>
>
> ______________________________________________________________________
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