Setting Spindle
Speed
Calculating Spindle Speed
1. Figure 29
Cutting Speeds for High Speed Steel (HSS)
Cutting Tools
Note: For carbide cutting tools, double the cutting
speed. These values are a guideline only. Refer to
the MACHINERY'S HANDBOOK for more detailed
information.
Figure 29.
3.
Setting Spindle Speed
1.
Note: This precaution avoids unexpected
high speed startup of the spindle.
2.
ON
Figure 30
Figure 30.
2.
Failure to follow spindle speed and feed rate
guidelines may threaten operator safety
from ejected parts or ejected tools.
Remember: Milling with the quill fully extended
can cause tool chatter. For maximum spindle
rigidity, keep the spindle retracted into the head-
stock as far as possible with the quill lock lever
locked and the downfeed selector tightened.