In a message dated 1/18/2003 6:17:44 AM Central Standard Time,
twb8899@... writes:
> Several types of spindles were available but I used the 60,000 rpm
> drill/route spindles on the EX-200 and 80,000 drill only spindles on the
> other machines. The air requirements for these machines was about 20 cfm at
> 90 psi.
Tom:
TWO points: 60,000 and 80,000 RPM? Were these "high frequency" motors, or
"brush motors"? TEFC, I would assume!
WOW, 20 CFM at 90 PSI! That would keep a 10 hp compressor running possibly
over 50% duty-cycle! Wouldn't it?
Jan Rowland
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