Chris,

I don't know anything about the Sulistron SLT20012.  I tried Googling it and found a web site that described their product as possibly a belt sander, but they also fabricate polishing equipment.  The Pola Massa is a polishing machine with diamond grit polishing heads.

In the end the proof is in the process control.  We have seen suppliers fail miserably with belt sanders since they cannot control the amount of copper removed uniformly across the panel to within 0.0002 inch.  The Pola Massa can hold this across the panel, but does need good process control and needs to be continually watched because it can damage a board with excessive copper removal, especially at the critical via knee areas.  (I wish I didn't know all this, but it has become an occupational hazard.)

There are a couple of other machines on the market that might be even better than the Pola Massa from a maintenance perspective.

Bill

William Dieffenbacher
PWB Engineer, Platform Solutions

T  607-770-2961   F 607-770-2056   [log in to unmask]
BAE Systems  Johnson City, New York, USA


-----Original Message-----
From: IPC-600-6012 [mailto:[log in to unmask]] On Behalf Of Chris Mahanna
Sent: Thursday, July 28, 2011 1:16 PM
To: [log in to unmask]
Subject: [IPC-600-6012] mechanical planarizer equipment

I have a customer asking me to post this question.  It might be inappropriate, but I'm interested also, so here goes:

Concerning class 3 wrap capability, is anyone willing to give some feedback on Sulistron SLT20012 vs. the Pola & Massa?

Thanks,
Chris

Chris Mahanna
President, Technical Manager
Robisan Laboratory Inc.
6502 E. 21st Street
Indianapolis, Indiana 46219
317-353-6249


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