Band SFPM

[bandmiller2]

Do any of you guys know the effects of low SFPM,and the effects of too high SFPM.I would think too high the teeth would dull sooner and the sawdust would be finer.Seems lower band speed would give longer band life.Frank C.

[red oaks lumber]

you can equal that with feed speeds, faster band speed means faster feed speed and visa versa.proper lubrication also helps

[taschmidretired]

  60 mph 5280' p/m

[bandmiller2]

Reason I asked is yesterday put hand held S/W tach on the bandwheel shaft the SFPM would figure out to 6500 SFPM.I didn't think it was that fast engine RPM must have picked up,seemed to cut good though.I'm not in a hurry so the with the electric motor conversion I'am going to slow it down right around 5000.Frank C.

[taschmidretired]

Your sheave sizes at the motor/drive wheel can drastically amp up or lower travel speed. To get that1750 up to where you were/are constitutes a little movement causing a larger movement.

[bandmiller2]

Your right Tom,I'am puting a 6" on the 1760 motor and 11" on the bandwheel shaft,keeping as large a pulleys as I can for traction.Frank C.

[ely]

seems i read someplace one time that the sfpm that was optimal, was somplacein the neiborhood of 4600. im sure that would change with the many different bands we have available now days.

[bandmiller2]

Ely,I think probibly the type of wood and its moisture content would play a roll in optimal SFPM.I think a good sharp well set band somewhere in the ballpark will work,its most likely a compromise anyways. Frank C.

[LeeB]

Several years ago Sawmill and Woodlot magazine put out an issue that talked about this and many other blade issues, both band and circle. I seem to remember 52-5400 being the magic number. They have a websight and you may be able to search old issues. I don't know.