I have been working with the UIC GSM platform for 6 years now in an EMS environment. Operating, programming, configuration, and line installation. I do not work for Universal or represent them in any way.
UIC is a 1st rate company with excellent and professional service and support.
Just to expand on the many good ideas presented above. 1st off, UIC no longer manufactures the GSM platform. They now make the Advantis and the high end Genesis machines. They do and will continue to support the GSM's and still do stock most all parts.
As far as configuration goes, stay far away from any pre-L Block machines as has been mentioned above. They will not support a PTIF (Platform Tray Feeder - Tray Tower) nor would you be able to upgrade the Operating System beyond IBM OS2 Warp4. What you really want is a machine already running or capable of running UPS+ 6.xx (Universal Program Software - Windows 2000 based OS).
The actual Head/Camera configurations will depend on your own product/component mix. Probably the most flexible combination of component compatibility/throughput would be a 7 spindle Flexjet head (with an on the head 2.6mil camera - providing "on the fly" vision processing capability). You will also need a rear mounted 2.6 mil (or better - Magellan digital camera preferred) for your larger packages (QFP's, BGA's, etc.). This config would probably be the most flexible as it gives you the best speed/capacity package.
A PTIF (Platform Tray Feeder) will be a valuable addition to the machine as it will give you the possibility to add as many as 58 separate additional trayed components (QFP's, BGA's, SOIC's) to the setup. The PTF will however cost you 8 feeder slots (for the transfer belt), so if you run mostly passives it could limit your overall feeder capacity.
The above configured GSM will happily place 0402's on up to QFP 304's all day, every day (with the right nozzle/feeder/camera configuration you can sucessfully place 0201's)
Although they no longer make the GSM's you can still get a remanufactured machine as mentioned above. We bought one in '03 (and 2 new T Block GSM's in '06) which has run great for us. Overall, we're very happy with UIC and the GSM platform.
Best of luck.
Dave
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