Greg, Thanks for your note. I'm hoping to add some heavier machinery some day, and this looks like it's worth some further examination. I did a little digging, and a static converter seems to reduce the rated horsepower by 1/3, which might or might not matter, depending on what you're starting with. This site seemed to have some good reading: _http://www.phase-a-matic.com/StaticApplicationNotes.htm_ (http://www.phase-a-matic.com/StaticApplicationNotes.htm) It looks like you might expect to pay maybe $300 for an 8-12 horse-worthy static converter to run motors of 7 or 8 hp. The site lists some applications the static converters might not be appropriate for. A rotary converter looks more like $1,500 - $2,000. How much was yours? Do you run all these off a single 30 amp 220 circuit? 50 amp? Multiple circuits? Thanks, Bob Davis In a message dated 4/12/2009 11:39:41 A.M. Pacific Daylight Time, gnewell at ameritech.net writes: Bob, Daniel and list, I have one of these old machines and quite a few other 3 phase powered machines in my shop. I use a simple static phase converter which I had an electrician friend wire in for me. The power reduction that I experience is negligible at best. My planer is only an 18” model (Yates American) but looks very much like the picture that Daniel sent earlier. I also have an 8” Powermatic joiner, a 5 HP Delta Unisaw, and a 7HP Powermatic Shaper/Molder that all run on 3 Phase power. None of these show any appreciable power reduction, at least for the low volume that I use them. Greg Newell Greg's Piano Forté www.gregspianoforte.com 216-226-3791 (office) 216-470-8634 (mobile) From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of BobDavis88 at aol.com Sent: Sunday, April 12, 2009 12:34 PM To: pianotech at ptg.org Subject: Re: [pianotech] newman planer, powermatic bandsaw In a message dated 4/9/2009 8:36:02 A.M. Pacific Daylight Time, carltonpiano at sbcglobal.net writes: hi list i'm looking at a newman s248 planer, $2600: "24x8 inch planer, 7 1/2 hp 240volt 3 phase motor, new powermatic knives, new gibs, runs great" reads the description. does anyone have experience with newmans? reliable, well-built? also for a powermatic bandsaw, model# 141, $550: "14 inch, 115 volt, runs great" read the description. are these big enough to do pinblocks and other rebuildin' stuff? Daniel Carlton = Daniel (and others looking at old industrial machinery), I don't think I've seen mention of one other caveat - three-phase power is not something most shops are wired for. There is a three-phase adapter, but it adds cost and bulk and reduces efficiency. Bob Davis ____________________________________ Feeling the pinch at the grocery store? _Make dinner for $10 or less_ (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001) . **************Feeling the pinch at the grocery store? Make dinner for $10 or less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090412/eafa6c92/attachment.html>
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