Cutting speeds – Tri Tool 604SB Clamshell User Manual
Page 29
29
Model 604SB thru 612SB, Clamshells
92-1197 : Rev. 131230
CUTTING SPEEDS
The Chart shows RPM required for the specified Tool Bit surface cutting speed.
Cutting Speeds (Approximately)
Pipe Size
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)
12"
12.75"
323.9 mm
5
6
7
12.50"
317.5 mm
5
6
8
11.75"
298.5 mm
5
7
8
11.50"
292.1 mm
6
7
8
11.25"
285.8 mm
6
7
8
10"
10.75"
273.1 mm
6
7
9
10.25"
260.4 mm
6
8
9
9.75"
247.7 mm
7
8
10
9.00"
228.6 mm
7
9
11
8"
8.625"
219.1 mm
7
9
11
7.500"
190.5 mm
9
11
13
6"
6.625"
168.3 mm
10
12
14
6.000"
152.4 mm
11
13
16
5"
5.563"
141.3 mm
12
14
17
4"
4.500"
114.3 mm
14
18
21
3.5"
4.000"
101.6 mm
16
20
24
3"
3.500"
88.9 mm
18
23
27
2.5"
2.875"
73.0 mm
22
28
33
2"
2.375"
60.3 mm
27
34
40
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.