billyd
starting to spend too much on rocks
Member since December 2004
Posts: 157
|
Post by billyd on Jun 20, 2013 11:47:05 GMT -5
hi i am looking for a new 10" saw blade but dont have a lot o cash and stay in scotland where cheap dont last. have noticed that postage from the us is more than the cost of a blade.
|
|
|
Post by jakesrocks on Jun 20, 2013 13:15:29 GMT -5
|
|
|
Post by deb193redux on Jun 20, 2013 14:06:45 GMT -5
that site appears a bit wonky. I cannot make their numbers add up.
the say best 3150 SFPM, but for a 10" (.83 ft) blade that is about 1204 RPM, while most stock pulleys and motors will be at 1750 rpm.
they also say divide 12000 by blade diameter to get RPM, but 12000/.83= 14k RPM. Not. - If you assume an extra zero, and use 1200/.83 you get 1445 RPM, which is different form true value of 1204.
They also say it is a .028" thick blade in the text, but in the pulldown they indicate .034", which is more believable since .032" is a standard size.
I would cross examine them about some of these numbers, and if possible get manufacturer and double check recommended RPM. The webmaster seems a bit sloppy or confused.
|
|
|
Post by Rockoonz on Jun 21, 2013 11:29:50 GMT -5
3" at the motor and 4" at the arbor is 1293. If it's a sintered blade that's an ok speed, but they don't specify what it is. If it's a crimped edge blade the quality isn't there and the price is way too high, and you should be closer to 2500 SFPM.
Lee
|
|
billyd
starting to spend too much on rocks
Member since December 2004
Posts: 157
|
Post by billyd on Jun 23, 2013 11:13:24 GMT -5
thanks for the help. want to get a continuous rim blade,only cut agates with the saw so can anyone recomend what tipe to go for.cheers billy
|
|