BAND SAW SPEED
I have a rockwell 14″ band saw, just installed a 1 hp motor but I think I must have the wrong size pullys , I think its going too fast. I have a 4″ pully on the motor and a 6′ pully on the saw. What pullies do I need for this saw? The motor is 1725 rpm. should I go for step pullys to change speeds for re- saw?
It seems like its going too fast for general sawing of 1″ material , but I could be wrong. Does any body know a formula for figuring out blade speed?
Try this site:
Let us do a bit of math:
Your wheel diameter is 14 inches, or 1.1666 ft. Your wheel perimeter is 1.1666 X 3.1416 = 3.664 ft. Your gear ratio is 4/6 or.66666. Your motor RPM is 1725 RPM.
Your blade speed is Gear ratio X Wheel perimeter X Motor speed, or:
.66666 X 3.664 ft X 1725 Rotations per minute = 4209 Feet per minute
It is indeed a bit fast.
You should have a gear ratio of 0.5, i.e. use a 3 inch pulley on the motor, so as to get 3160 feet per minute cutting speed.
Edited 12/23/2005 8:51 am ET by FrenchGuy
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