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Machinery Reference
| Bandsaw Reference Chart |
| Bandsaw Wheel Size Dia |
R.P.M |
H.P. Motor Size |
| 300mm |
950 |
0.33 |
| 450mm |
900 |
0.5 |
| 600mm |
800 |
1.5 |
| 750mm |
750 |
3.0 |
| Circular Saw Reference Chart |
| Circular Saw Blade Size Dia |
R.P.M |
H.P. Motor Size |
| 180mm |
5300 |
0.33 to 0.50 |
| 200mm |
4770 |
0.5 to .75 |
| 230mm |
4150 |
0.5 to 1.0 |
| 250mm |
3950 |
0.5 to 1.0 |
| 300mm |
3180 |
1.5 to 2.0 |
| 350mm |
2700 |
2.0 to 3.0 |
| 400mm |
2380 |
3 to 4.5 |
| 450mm |
2120 |
5.0 |
| 500mm |
1910 |
7.0 |
| The R.P.M. is base on a peripheral speed of 3000m
per minute. Take the Diameter of the saw blade and multiply it by
3.143 take the answer and divide it into 3000 the result is the R.P.M. Note the power to drive a Bandsaw is less because of the smaller saw kerf involved.
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| Lathe Reference Chart |
| Wood being Turned Size Dia |
R.P.M |
| 25mm |
3000 |
| 50mm |
2500 |
| 75mm |
1500 |
| 125mm |
1000 |
| 200mm |
650 |
| 300mm |
570 |
| 450mm |
300 |
| 600mm |
250 |
| Note as the size increases the speed decreases. Remember to start off slow on larger diameters until they are true or rounded on the lathe and then you can increase the speed. H.P. can be quite low if you take light cuts I have cut 200mm Dia on a 0.25 H.P. motor but it was slow work and frustrating there is a plus side however to under-power the motor will stop if the wood snatches rather than some thing breaking or you being pole vaulted over the lathe on the end of a skew chisel ! |
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