Cutting speeds – Tri Tool 642SB Clamshell Air and Hydraulic User Manual
Page 31
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Model 642SB Low Profile Clamshell
92-0612 Rev. 131230
CUTTING SPEEDS
The chart shows RPM to obtain specified Tool Bit surface cutting speed on the
surface of the pipe.
Use 200 surface inches per minute (508 surface centimeters per minute) for:
Stainless steels in general when no coolant is allowed, all heavy-wall tube and some
of the chrome/molybdenum steels.
Use 250 surface inches per minute (635 surface centimeters per minute) for: Mild
steels and some thin wall stainless steels when coolants are permitted and applied.
Use 300 surface inches per minute (762 surface centimeters per minute) for:
Aluminum and thin-wall mild steel and tube with coolants.
CUTTING SPEEDS
True Diameter
RPM for
200 in/min
(508) cm/min
RPM for
250 in/min
(635) cm/min
RPM for
300 in/min
(762) cm/min
42.00"
1066.8 mm
1.5
2
2.5
40.00"
1016.0 mm
1.5
2
2.5
38.00"
965.2 mm
1.5
2
2.5