Hi, looking for some opinions, I recently bought a used, 17" very old cast iron meat bandsaw from a guy who used to use it for woodwork. It uses a 3 phase motor, not sure what the size is but the guy seemed to think that it was several horsepower, judging by the size of it I would think that would be about right. Anyway I fired it up today and cut some 200mm thick timber and also did some speed measurements, the motor revs at 1460RPM and the the band wheels spin at 552 RPM unloaded, with the 17" diameter wheels I estimate that the blade is moving approximately 1083 ft/min if my calcs are correct. This appears to be at least 2000 ft/min slower than ideal for a wood saw band travel speed.
So my options are in order of least expensive to most:
1) Just leave it as is and put up with the slower band speed.
2) Change the main pulley from the current 100mm with a larger 200mm pulley and matching length belts.
3) Get a larger motor (3-4HP) with a 2850 RPM and possibly a 150mm pulley.
So my main concerns are, I am wondering if I go for option 2, would the motor be underpowered. It does cut the timber and uses a 133" x 1/2" band with 4 TPI but it doesn't do it real fast or accurately, might have to get a wider band blade, but at this stage I am more concerned about whether the motor will handle the larger pulley and also if that will effect any bearings inside the wheels. Not sure what type of bearings are in it either!
Any ideas or opinions?
Cheers
Ed.
So my options are in order of least expensive to most:
1) Just leave it as is and put up with the slower band speed.
2) Change the main pulley from the current 100mm with a larger 200mm pulley and matching length belts.
3) Get a larger motor (3-4HP) with a 2850 RPM and possibly a 150mm pulley.
So my main concerns are, I am wondering if I go for option 2, would the motor be underpowered. It does cut the timber and uses a 133" x 1/2" band with 4 TPI but it doesn't do it real fast or accurately, might have to get a wider band blade, but at this stage I am more concerned about whether the motor will handle the larger pulley and also if that will effect any bearings inside the wheels. Not sure what type of bearings are in it either!
Any ideas or opinions?
Cheers
Ed.
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