[TheForge] Re: TheForge Digest, Vol 46, Issue 22

[Todd Rich]

(apologies for the delay...I'm dealing with the 4th migraine in 3 days)

On Tue, 13 Nov 2007, Cindy and James wrote:

> Have you considered using a phase converter?  I know a fellow here who 
> refurbishes and sells machine tools, all 3 phase, and he does not have 3 
> phase service.  He uses phase converters.  They do reduce the hp of the 
> target motor.  Might or might not be something to think about.  3 phase is 
> nice to have, I have it in my shop (230 volt).

I've already looked into it, and I only have 100amp service to the shop. 
The combination of idler and compressor motor about takes it up to the 
maxiumum current and start-up current will be too large.  If I can't get 
the 3 phase, I can get a VFD which will allow me to run the motor soft 
starting which will keep the current in an acceptable range, but a decent 
model that can power a 15hp 3-phase motor will run me about $1500. 
Doable, but 3-phase from the power company should be cheaper.
>
> A question... does this hammer use high pressure high volume or low pressure 
> high volume?  Sort of a dumb question, I guess.  Tom Clark's Turkish hammer 
> uses low pressure high volume.  Just curious.
>
What is your breakover on pressure for high/low?  The Kinyon hammer is 
supposed to run @ 100 psi.
 			Todd