Louis,

Boy have I got a lot to say on this one.  I will outline a few items here 
but would be very happy to have a phone conversation  about what has 
worked for me, what hasn't and the interesting problems I have run into.

The big three are:
-reliability vs cost,
-Spray Pattern vs what you want to accomplish,
-conveyor options, is what your transport thick, thin or other,

I have developer for Photo Coverlay that I paid very little for from one 
of the off brand suppliers.  I did this because I thought I would only be 
running it about four hours a week.  Five years later it is a workhorse 
running about 14 hours a day and most weeks 6 days.  It does everything I 
asked it for and very low operation cost and very high up-time.

Often fine line spray patterns are interfered with by conveyor parts.  I 
hate it when a spray bar is directly over a set of conveyor wheels.  Look 
carefully at where spray bars are placed so they spray directly on your 
work.

Conveyors are more important than you think.  Make sure you talk to 
someone who has a unit you are considering that is 5 years.  If he has 
more than 4 conveyor issues a year reconsider that source.

Be very aware of your space requirement.  If you want a good process you 
probably need more rinsing than you think.  Rinses take up space.  You can 
get counter-flow options in your quote to save water. 

good luck,

Chuck Brummer l 3M Manufacturing Engineer
3m Electronic Solutions Division--Flexible Circuits
8357 Canoga Ave. l Canoga Park, CA 91304-2605
(818) 734-4930
[log in to unmask] l www.3m.com l www.3mFlex.com




From:
Louis Hart <[log in to unmask]>
To:
<[log in to unmask]>
Date:
11/19/2010 07:10 AM
Subject:
[TN] horizontal processing equipment
Sent by:
TechNet <[log in to unmask]>



TechNetters, may I have comments or advice on  buying horizontal 
processing equipment? We may be looking for something here. Reliability 
is, of course, the primary consideration but any information is likely to 
be helpful. It may be best to contact me off line, according to TechNet 
policy.

Louis Hart
Compunetics
Monroeville, PA
USA
[log in to unmask]<mailto:[log in to unmask]>
412-858-1272

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