Four of the companies I work for use Sonofluxers. I don't really know much about any other brands so I cannot speak to those. The Sonofluxers work very well, but I just wanted to point out that all ultrasonic fluxing systems require careful maintenance of the fluxing system as a whole. I once traveled to a location to fix solder icycling and solder stringing issues on the bottom of the CCA. It was caused by clogging of the orifices in the flux head due to separation of the solids in the flux in the tank. The flux sat more than 30 days, and when it got down to the bottom 2 or 3 inches of sludge in the flux tank it would clog up. If RMA flux is left in the fluxing system for several days without cleaning the system, it becomes very, very difficult to clean it out; kinda like hardening of the arteries. Water-soluble flux is not as bad, but it can still clog up, so same issue.
All four locations take the fluxing system apart every night and clean it out, including the US spray head. This only takes about 10 minutes for an experienced operator. The tank is emptied and cleaned and refilled with fresh flux weekly. If this maintenance is performed diligently, the Sonofluxers work very, very well.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall
Sent: Wednesday, January 12, 2011 11:18 AM
To: [log in to unmask]
Subject: [TN] Fluxer Recommendation Request

Folks,

We're looking to replace some of our stand-alone wave solder fluxing
systems.  I don't know how much research has been conducted by our
Process Team, but I do know they're currently considering the Sono-Tek
2000F.

Is anyone out there familiar with this unit?  I'd appreciate any
feedback you could provide, and/or suggest any alternative system.

Systems to definitely stay away from would also be good information.

Replies can be sent off-line.

Many thanks,

Leland

 

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