Electronics Forum: rejection in smt of all components (Page 1 of 14)

Re: placement of 8 ml smt components

Electronics Forum | Fri Sep 11 09:30:30 EDT 1998 | Earl Moon

| Heeeelllllp. | I am a sales rep. ( I know I know, you can't help me with that. ha ha.) Actually, I represent a company that fabricates PCBs and assembles them under the same roof. We are a small to moderate volume house that is just getting int

% of wasted components in SMT production

Electronics Forum | Fri Mar 19 14:07:49 EDT 2010 | cguerzoni

Dear all, could you plaese tell me what is the "normal" % of wasted components in SMT production? Thank you.

% of wasted components in SMT production

Electronics Forum | Fri Mar 19 14:43:44 EDT 2010 | davef

attrit*

% of wasted components in SMT production

Electronics Forum | Thu Mar 25 12:27:19 EDT 2010 | ssager

We factor in 3% to our older Quad machines.

% of wasted components in SMT production

Electronics Forum | Thu Mar 25 14:31:28 EDT 2010 | cguerzoni

Thank you, it seems to be an high scrap %. I think that this % depends on the size of the component (machine loss), on the lot size (new lot set up loss) and on the number of components per reel (new reel set up loss). What do you think abot this?

% of wasted components in SMT production

Electronics Forum | Wed Apr 07 03:44:40 EDT 2010 | jackevest

The missing rate spec. of normal machine is under 0.3%, for our experience 0.1% is normal for average, if you can maintain the machine well, like the nozzle cleaning, feeder maitain...you can keep the 0.05%.

I am Jack Liu, I must clarify all of things in this business!

Electronics Forum | Fri Aug 19 11:35:33 EDT 2005 | fastek

Unfortunately this is what happens when both the buyer and seller fail to take the necessary steps to insure a used equipment deal goes smoothly. Stefen fails to inspect what he is buying. Jack.....first impressions are 90% of the "battle" to satisfy

I am Jack Liu, I must clarify all of things in this business!

Electronics Forum | Fri Aug 19 11:14:20 EDT 2005 | liujh

I am Jack Liu, I must clarify all of these in the business with Stefan, and let all of the dealers know which kind of person the Stefan is! For this used machine sales, we have invoice with Stefan and remark as follows(He had confirmed the invoice):

I am Jack Liu, I must clarify all of things in this business!

Electronics Forum | Fri Aug 19 11:16:28 EDT 2005 | liujh

I am Jack Liu, I must clarify all of these in the business with Stefan, and let all of the dealers know which kind of person the Stefan is! For this used machine sales, we have invoice with Stefan and remark as follows(He had confirmed the invoice):

I am Jack Liu, I must clarify all of things in this business!

Electronics Forum | Fri Aug 19 11:18:27 EDT 2005 | liujh

I am Jack Liu, I must clarify all of these in the business with Stefan, and let all of the dealers know which kind of person the Stefan is! For this used machine sales, we have invoice with Stefan and remark as follows(He had confirmed the invoice):

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