Adjusting Spindle
Speeds
Diameter
of Work-
piece
Roughing
RPM
General
Cutting
RPM
Finishing
RPM
Figure 22.
Spindle
Motor
C
B
A
A = Low Range
100-1000 RPM
B = Mid Range
1000-2000 RPM
C
= High Range
2000-3000 RPM
Figure 21.
To change speed ranges:
1.
2.
Figure 23
Figure 21
Figure 22
Figure 23.
Always choose the correct spindle speed
for your operation. Using the wrong speed
may lead to the workpiece breaking loose
or being thrown from the lathe at a high rate
of speed, causing fatal or severe impact
injuries.
