Setting Rpm - Grizzly G0463 Owner's Manual

Setting RPM

Closely follow the proper cutting speed and prop-
er feed to reduce undue strain on all moving parts
and for operator safety.
Prior to machining, you need to determine the
RPM needed to cut your workpiece, and then set
the RPM on the machine.
To determine the needed RPM:
1. Use the table in Figure 15 to determine the
cutting speed required for the material of your
workpiece.
2. Measure the diameter of your cutting tool in
inches.
3. Use the following formula to determine the
needed RPM for your operation:
(Cutting Speed x 4) /Tool Diameter = RPM
Model G0463 (Mfg. 2/09+)
Cutting Speeds for High Speed Steel (HSS)
Cutting Tools
Workpiece Material
Aluminum & alloys
Brass & Bronze
Copper
Cast Iron, soft
Cast Iron, hard
Mild Steel
Cast Steel
Alloy Steel, hard
Tool Steel
Stainless Steel
Titanium
Plastics
Wood
Note: For carbide cutting tools, double the cut-
ting speed. These values are a guideline only.
Refer to the MACHINERY'S HANDBOOK for
more detailed information.
Figure 15. Cutting speed table for HSS cutting
tools.
Failure to follow RPM and Feed Rate
Guidelines may threaten operator safety
from ejected parts or broken tools.
NOTICE
Failure to follow RPM and Feed Rate
Guidelines will put undue strain on mov-
ing parts, shorten tool life, and create poor
workpiece results.
Cutting Speed (sfm)
300
150
100
80
50
90
80
40
50
60
50
300-800
300-500
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