Circular Saw Blade Speeds
Jonathan Fabian
I have been reading this newsgroup for a long while now and have never had
the need to ask a question that I couldn't find the answer to with a little
research but now I am stuck.
What I would like to find out is:- what are the various "tip speeds" for a
circular saw blade ?
The reason I ask this is because I have been given a fair amount of
conflicting info.
To explain:
I recently purchased an American Vermont 40 and 60 tooth TCT 254mm circular
saw blades, the info given on the blade says "max rpm 6000". I then modified
my old table saw with pulleys etc to achieve 5500 rpm expecting it to work
well and found performance was not ideal. Discussions with the local saw
specialist/ manufacturer said that TCT blades should cut at approx. 2900 -
3200 metres per minute- the so called tip speed. This is defined as the
speed the TCT tip is moving at.
Simple calcs will show the tip speed at 5500 is 4391 metres/minute. I also
own a Dewalt RAS ( lets leave the ever ending thread Dewalt or X is better
out here!) the motor fitted is rated 2800 rpm giving a tip speed of 2235
metres / minute and this cuts very well.
Preliminary research shows this is complex depending on motor power, teeth
number, and wood being cut etc.
Does anyone have any answers as I would be interested to hear from them.
Jonty
John Hofstad-Parkhill
circular
>saw blades, the info given on the blade says "max rpm 6000".
That is a safety notice, not a recommendation for speed.
>I then modified
! ?
Most table saws spin in the 3000-3500rpm range (I forget the exact number).
The blade manufacturer's know this.
mkepke
with 1:1 pulley ratios.
BTW 6000 rpm is the "not to exceed" speed, not the optimum. I imagine,
as John noted, most 10" saw manufacturers design around the 3450 RPM for
chip clearing, cutting speed, etc. although I've never seen this stated.
-Mark
leh...@thinkerf.com
Typically, larger diameter (12" - 54") rip saws run at 3000 m/s (10,000
fpm). In sawmills rip saws go up to 14,000 fpm, but they are being fed very
fast (400 -600 fpm). Trim saws run at about 20,000 fpm.
For a table saw, you can't feed very fast so the bite per tooth is usually
very small (less than 0.005"). If the bite gets less than this, there is
more rubbing than cutting happening, which dulls the saw quickly and builds
up a lot of heat. For this reason, there is no benefit from using a high
rpm.
The 6000 rpm mark on the blade is the fastest speed for safe operation (could
be the burst speed) - stay well away from it.
Bruce Lehmann
------------------------------------------
Thin Kerf Technologies www.thinkerf.com
In article <782odo$5lm$1...@news.ibi.co.za>,
"Jonathan Fabian" <jfa...@no.spam.multimatics.co.za> wrote:
> Dear Woodworkers
>
> I have been reading this newsgroup for a long while now and have never had
> the need to ask a question that I couldn't find the answer to with a little
> research but now I am stuck.
>
> What I would like to find out is:- what are the various "tip speeds" for a
> circular saw blade ?
>
> The reason I ask this is because I have been given a fair amount of
> conflicting info.
>
> To explain:
> I recently purchased an American Vermont 40 and 60 tooth TCT 254mm circular
> saw blades, the info given on the blade says "max rpm 6000". I then modified
> my old table saw with pulleys etc to achieve 5500 rpm expecting it to work
> well and found performance was not ideal. Discussions with the local saw
> specialist/ manufacturer said that TCT blades should cut at approx. 2900 -
> 3200 metres per minute- the so called tip speed. This is defined as the
> speed the TCT tip is moving at.
>
> Simple calcs will show the tip speed at 5500 is 4391 metres/minute. I also
> own a Dewalt RAS ( lets leave the ever ending thread Dewalt or X is better
> out here!) the motor fitted is rated 2800 rpm giving a tip speed of 2235
> metres / minute and this cuts very well.
>
> Preliminary research shows this is complex depending on motor power, teeth
> number, and wood being cut etc.
>
> Does anyone have any answers as I would be interested to hear from them.
>
> Jonty
>
>
-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
B&L Denard
blade.
Bill D.
simon...@gmail.com
Have a nice day!
Our company is Jiangsu Deuco Precision Tool CO.,LTD, it is a professional TCT saw blade company which devoted on reach, design and production.
We want to do the best TCT saw blade, so we not only adopt the production line from Germany (Vollmer and KAHNY machines) and good material to product the TCT saw blade, but also there are 185 skilled workers and the 5S production system.
And we have got a good reputation by our effort in this industry of our country!
If you need any more details, just feel free contact me. And we are warmly welcome you to have a visit to our manufacturer (it is very convenient to be here. we are very near Shanghai).
Best regards
Simon
Jiangsu Deuco Precision Tool CO.,LTD (One step ahead!)
Simon Zhu (祝承胜) Sales Manager
Mobile: +86-1386 1389 438
E-mail:simon...@gmail.com
Address: Economic Development Zone,Danyang City, Jiangsu Province, P.R.China
在 1999年1月19日星期二UTC+8下午4时00分00秒，Jonathan Fabian写道：
simon...@gmail.com
Have a nice day!
Our company is Jiangsu Deuco Precision Tool CO.,LTD, it is a professional TCT saw blade company which devoted on reach, design and production.
We want to do the best TCT saw blade, so we not only adopt the production line from Germany (Vollmer and KAHNY machines) and good material to product the TCT saw blade, but also there are 185 skilled workers and the 5S production system.
And we have got a good reputation by our effort in this industry of our country!
If you need any more details, just feel free contact me. And we are warmly welcome you to have a visit to our manufacturer (it is very convenient to be here. we are very near Shanghai).
Best regards
Simon
Jiangsu Deuco Precision Tool CO.,LTD (One step ahead!)
Simon Zhu (祝承胜) Sales Manager
Mobile: +86-1386 1389 438
E-mail:simon...@gmail.com
Address: Economic Development Zone,Danyang City, Jiangsu Province, P.R.China
> circular
> >saw blades, the info given on the blade says "max rpm 6000".
>
simon...@gmail.com
Have a nice day!
Our company is Jiangsu Deuco Precision Tool CO.,LTD, it is a professional TCT saw blade company which devoted on reach, design and production.
We want to do the best TCT saw blade, so we not only adopt the production line from Germany (Vollmer and KAHNY machines) and good material to product the TCT saw blade, but also there are 185 skilled workers and the 5S production system.
And we have got a good reputation by our effort in this industry of our country!
If you need any more details, just feel free contact me. And we are warmly welcome you to have a visit to our manufacturer (it is very convenient to be here. we are very near Shanghai).
Best regards
Simon
Jiangsu Deuco Precision Tool CO.,LTD (One step ahead!)
Simon Zhu (祝承胜) Sales Manager
Mobile: +86-1386 1389 438
E-mail:simon...@gmail.com
Address: Economic Development Zone,Danyang City, Jiangsu Province, P.R.China
> with 1:1 pulley ratios.
>
> BTW 6000 rpm is the "not to exceed" speed, not the optimum. I imagine,
> as John noted, most 10" saw manufacturers design around the 3450 RPM for
> chip clearing, cutting speed, etc. although I've never seen this stated.
>
> -Mark
>
> John Hofstad-Parkhill wrote:
> >
simon...@gmail.com
Have a nice day!
Our company is Jiangsu Deuco Precision Tool CO.,LTD, it is a professional TCT saw blade company which devoted on reach, design and production.
We want to do the best TCT saw blade, so we not only adopt the production line from Germany (Vollmer and KAHNY machines) and good material to product the TCT saw blade, but also there are 185 skilled workers and the 5S production system.
And we have got a good reputation by our effort in this industry of our country!
If you need any more details, just feel free contact me. And we are warmly welcome you to have a visit to our manufacturer (it is very convenient to be here. we are very near Shanghai).
Best regards
Simon
Jiangsu Deuco Precision Tool CO.,LTD (One step ahead!)
Simon Zhu (祝承胜) Sales Manager
Mobile: +86-1386 1389 438
E-mail:simon...@gmail.com
Address: Economic Development Zone,Danyang City, Jiangsu Province, P.R.China
>
> Typically, larger diameter (12" - 54") rip saws run at 3000 m/s (10,000
> fpm). In sawmills rip saws go up to 14,000 fpm, but they are being fed very
> fast (400 -600 fpm). Trim saws run at about 20,000 fpm.
>
> For a table saw, you can't feed very fast so the bite per tooth is usually
> very small (less than 0.005"). If the bite gets less than this, there is
> more rubbing than cutting happening, which dulls the saw quickly and builds
> up a lot of heat. For this reason, there is no benefit from using a high
> rpm.
>
> The 6000 rpm mark on the blade is the fastest speed for safe operation (could
> be the burst speed) - stay well away from it.
>
>
> Bruce Lehmann
> ------------------------------------------
> Thin Kerf Technologies www.thinkerf.com
>
>
> In article <782odo$5lm$1...@news.ibi.co.za>,
> "Jonathan Fabian" <jfa...@no.spam.multimatics.co.za> wrote:
> >
> > I have been reading this newsgroup for a long while now and have never had
> > the need to ask a question that I couldn't find the answer to with a little
> > research but now I am stuck.
> >
> > What I would like to find out is:- what are the various "tip speeds" for a
> > circular saw blade ?
> >
> > The reason I ask this is because I have been given a fair amount of
> > conflicting info.
> >
> > To explain:
> > my old table saw with pulleys etc to achieve 5500 rpm expecting it to work
> > well and found performance was not ideal. Discussions with the local saw
> > specialist/ manufacturer said that TCT blades should cut at approx. 2900 -
> > 3200 metres per minute- the so called tip speed. This is defined as the
> > speed the TCT tip is moving at.
> >
> > Simple calcs will show the tip speed at 5500 is 4391 metres/minute. I also
> > own a Dewalt RAS ( lets leave the ever ending thread Dewalt or X is better
> > out here!) the motor fitted is rated 2800 rpm giving a tip speed of 2235
> > metres / minute and this cuts very well.
> >
> > Preliminary research shows this is complex depending on motor power, teeth
> > number, and wood being cut etc.
> >
> > Does anyone have any answers as I would be interested to hear from them.
> >
> > Jonty
> >
> >
>
F Murtz
in news groups do either
Swingman
> Don't buy stuff from sneaky uninvited spammers, and probably no one else
> in news groups do either
again in your reply like you did, has the exact same effect as sending
it in the first place.
--
eWoodShop: www.eWoodShop.com
Wood Shop: www.e-WoodShop.net
https://www.google.com/+eWoodShop
https://plus.google.com/+KarlCaillouet/posts
http://www.custommade.com/by/ewoodshop/
KarlCaillouet@ (the obvious)
nailsh...@aol.com
> Not only that, but quoting the entire text of the spam, and posting it
>
> again in your reply like you did, has the exact same effect as sending
>
> it in the first place.
No wonder Ethel thought he was a few bricks shy of a load.
Robert
John Doe
> F Murtz wrote:
>
>> Don't buy stuff from sneaky uninvited spammers, and probably no one
>> else in news groups do either
>
> Not only that, but quoting the entire text of the spam, and posting it
> again in your reply like you did, has the exact same effect as sending
> it in the first place.
thread" key...