Re: [CAD_CAM_EDM_DRO] Re: Looking for belt drive ISO 10 spindle

It takes alot larger air motor to compete with an electric motor. I have an Ingersol-rand 1/2 hand drill and Milwaukee 1/2" hole-gun. The Milwaukee electric is like 3 times more powerful. Electricity compresses the air and then that air/energy is transfered to the motor. Air is a very poor medium in which to transfer energy. Just use an electric motor and take the air out of the equation, No advantages other than longevity. Most air motors are vane type. They are all about speed and very little torque. An air motor that was capable of 1hp at 40k RPM would be very expensive. And huge.

Ron

flyasuperseven <flyasuperseven@...> wrote:


Yaa, I'm not use to looking at the industrial air compressors but
once I found them (just now online) I see that it would take about a
15HP compressor. Pretty poor payoff- 15hp for 1hp at the spindle!

They might have other advantages that outweigh this though? Quiet?
Long life? Don't bog down as easy? Lighter (for quicker
acceleration)?

Joa

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "cnc_4_me"
wrote:

>
> I think my 10 hp ingersol rand only put out 28cfm....I do not

think

> an air spindle is practical.
>
> Wally
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "flyasuperseven"
> wrote:
> >
> > Thanks for the info.
> >
> > As another option I googled and found an air spindle that seems

in

> > this range. What are the pros and cons of an air spindle vs an
> > electric spindle?
> >
> > One thing I noticed is that they sure use the air. What type of
> > compressor is able to deliver around 60cfm at 90psi? Even the

big

> > standup shop ones only put out about 1/4 this. Is there another
> > style that is typically used on the air spindles?
> >
> > Joa
>

Addresses:
FAQ: http://www.ktmarketing.com/faq.html
FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com

Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
Moderator: pentam@... indigo_red@... davemucha@... [Moderators]
URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO

OFF Topic POSTS: General Machining
If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
http://www.metalworking.com/news_servers.html

http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.

NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
bill
List Mom
List Owner


Yahoo! Groups Links









[Non-text portions of this message have been removed]