Electronics Forum | Sat Apr 24 08:23:03 EDT 1999 | Bubba
| Surprisingly enough, ever since the addition of an omega wave, we solder those often-troublesome SOT23's just fine and dandy.. anyways, long-term, well be getting a universal GDM which uses positive displacement pumps..currently we're using fuji g
Electronics Forum | Wed Jan 30 12:22:06 EST 2002 | jax
Clark, The universal GDM should handle your application with ease. Although not as accurate as an archimedes screw, the positive displacement pump of your GDM will still be well within any tolerances if maintained and operated properly.. Not to me
Electronics Forum | Tue Mar 18 09:11:14 EST 2003 | Rob C
With a standard valve and no-clean solder paste you may get a few good dots. But, repeatability will be terrible too many variable, air-pressure, board height (two post nozzle), valve time on/off, retract height, retract time, etc... A RMA paste wi
Electronics Forum | Thu Feb 23 14:06:19 EST 2006 | pjc
Positive Displacement Pump technology is in fact used for the underfill process. Both Camalot Systems and Asymtek both use them. Asymtek also has the Jetter and Camalot has the Multi-Piston Pump, specifically designed for underfill applications. The
Electronics Forum | Thu Apr 26 20:18:45 EDT 2007 | hegemon
For what it is worth, we are purchasing a dispensing system including a Robotic Arm, Positive Displacement Valve (as opposed to volumetric displacement) and Controller. We have purchased this unit for doing lead free 20 mil dots at 30 mil pitch in s
Electronics Forum | Tue Apr 14 16:35:10 EDT 1998 | Bob Barr
Ron: I have a story similar to Justin's. A major name in pick and place machines took a CAMALOT positive displacement pump and put it on their machine. The CAMALOT dispenser by itself is great. I used their model 1414 benchtop dispenser for years w
Electronics Forum | Fri Feb 28 10:32:45 EST 2003 | pjc
Cookson Electronics Equipment- Electrovert AquaStorm 200 highly recommended options: Checkmate Conveyor Hurricane Jets in Wash and Rinse 4 Additional Top Spray Bars in Wash *Closed Loop Filtration System for Wash *Positive Displacement Chemical Meter
Electronics Forum | Fri Sep 28 18:16:21 EDT 2007 | hegemon
Replacing Screen Printer with a dispensing system? If you have large complex PCBs you will lose a bit of time to say the least. That being said, we have had great success with an I&J Fisnar 'bot with positive displacement (auger) valve for dispensi
Electronics Forum | Wed Oct 15 16:34:36 EDT 2008 | gregcr
Hi All, I am retrofitting a machine with a solder paste dispenser head, and am trying to decide what direction to go, with a dispense valve. The choices I know are either a standard Air over, or some kind of positive displacement valve such as a sc
Electronics Forum | Mon Dec 11 19:21:32 EST 2023 | SMTA-64387074
PVA and Specialty Coating Systems both have equipment that are easy to program and maintain. It is a spray booth so maintenance needs to be regular or you will have quite the headache. We have a conformal coating line with 2 coaters a board flipper a
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