Electronics Forum | Wed Sep 08 12:36:10 EDT 2004 | Rob
Hi Peter, I've got to admit we cheated by adding another GSM per line, but that's not always the most economical option. Cheers, Rob.
Electronics Forum | Thu Sep 09 22:13:40 EDT 2004 | peter016
Hi Fastek, Why am I asking ? Cost pressure ! Down 10~15% every year to remain competitive. Need to do differently for better $ per unit. Hi Rob, Thanks for your candid advice. Kind Regards, Peter
Electronics Forum | Wed Sep 08 03:08:05 EDT 2004 | peter016
Hi Everyone, I am new to this forum. I have posted a similar question on this subject (Chipmounter Plancement Speed). Does the 60% inclusive of the PM and Downtime ? I also find that line balancing also plays a part. For example the Universal GSM II
Electronics Forum | Thu Aug 26 13:51:57 EDT 2004 | Dreamsniper
I've done a few capacity and capability studies and bought new SMT equipment (Pick and Place) based on the above required capacity. I did not rely on equipment manufacturer's tact time. I used only 60% of their tact time as achievable in real manufac
Electronics Forum | Wed Sep 08 20:48:36 EDT 2004 | peter016
Hi Rob, I guess the ratio between chipmounter and GSM is very much depending on the chip to ICs ratio. This is product dependent. We use 2 HS50 to 2 GSMII, 5 S20 to 2 GSMII, 3 Sanyos to 2 GSMII, and 2 CP6 to 2 GSMII. Are these ideal ratios ? Lean Ma
Electronics Forum | Wed Sep 08 06:11:24 EDT 2004 | Rob
Hi Peter, We're typically seeing 60% on the average subcontract job, but on high volume, high density & well laid out boards we are seeing up to 95% on our chipshooters. The things that usually kill the speed for us are: multiple circuit panels (3
Electronics Forum | Fri Sep 17 19:27:50 EDT 2004 | debh
Are industry time standards based on actual time...or money? From a start to stop time on a multi-machine SMT line our time is well below standard. (Our company uses industry standard (I'm told) based on .09 sec. per placement.) However each pick an
Electronics Forum | Wed Aug 25 19:35:48 EDT 2004 | russ
This is highly dependent upon your board, vision inspection, part rotation, part type, layout, number of P/Ns per (1 pers or 100 pers) feeder layout, optimization, nozzle changes, etc... all have significant impact on placement speed. I find if you
Electronics Forum | Thu Sep 09 04:00:22 EDT 2004 | rlackey
Hi Peter, You certainly have a selection of kit. We use 2 CP6's & 2 GSMs per line, and that balances pretty well (sometimes one of the fuji's is idle though - but we can live with that). When we had S20's we found 2 of them roughly kept up with a
Electronics Forum | Thu Aug 26 13:20:56 EDT 2004 | pjc
Machine design plays a major factor in actual placement rate vs. the published tact time max speed. For example, random access horizontal turret head machines can vary greatly depending on nr. of different components and size ranges, while the dual g
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