Model 612RBL-G2 thru 642RBL-G2 Clamshells
92-1739 Rev. 220506
37
7. CUTTING SPEEDS
WARNING
WARNING: Failure to use the state cutting speeds may result in any of the following:
personal injury, broken tool bits, or broken equipment components.
Use 200 to 250 surface inches per minute (5080 to 6350 millimeters per
minute) for: Stainless steels, mild steel, heavy wall tube, and chrome/
molybdenum steels.
Use 300 to 450 surface inches per minute (7620 to 11430 millimeters per
minute) for: Aluminum and some thin wall mild steel and tube with coolant.
Use 450 to 720 surface inches per minute (11430 to 18288 millimeters per
minute) for: Free cutting materials with carbide when application permits.
Pipe
Size
True DIA
R
PM
fo
r
20
0
in
/m
in
(5
08
0 m
m
/m
in
)
R
PM
fo
r
25
0
in
/m
in
(6
35
0 m
m
/m
in
)
R
PM
fo
r
30
0
in
/m
in
(7
62
0 m
m
/m
in
)
R
PM
fo
r
45
0
in
/m
in
(1
14
30 m
m
/m
in
)
R
PM
fo
r
72
0
in
/m
in
(1
82
88
m
m
/m
in
)
42"
42.00" (1066.8mm) 1.5
1.9
2.3
3.4
5.5
40"
40.00" (1016.0mm) 1.6
2
2.4
3.6
5.7
38"
38.00" (965.2mm) 1.7
2.1
2.5
3.8
6
36"
36.00" (914.4mm) 1.8
2.2
2.7
4
6.4
34"
34.00" (863.6mm) 1.9
2.3
2.8
4.2
6.7
32"
32.00" (812.8mm) 2
2.7
3
4.5
7.2
30"
30.00" (762.0mm) 2.1
2.7
3.2
4.8
7.6
28"
28.00" (711.2mm) 2.3
2.8
3.4
5.1
8.2
26"
26.00" (660.4mm) 2.4
3.1
3.7
5.5
8.8
24"
24.00" (609.6mm) 2.6
3.3
4
6
9.5
22"
22.00" (558.8mm) 2.9
3.6
4.3
6.5
10.4
20"
20.00" (508.0mm) 3.2
4
4.8
7.2
11.5
18"
18.00" (457.2mm) 3.5
4.4
5.3
8
12.7
16"
16.00" (406.4mm) 4
5
6
9
14.3
14"
14.00" (355.6mm) 4.5
5.7
6.8 10.2
16.4
12"
12.75" (323.9mm) 5
6.2
7.5 11.2
18
10"
10.75" (273.1mm) 5.9
7.4
8.9 13.3
21.3
8"
8.63" (219.2mm) 7.4
9.2
11.1 16.6
26.6
7"
7.63" (193.8mm) 8.3
10.4
12.5 18.8
30
7"
7.00" (177.8mm) 9.1
11.4
13.6 20.5
32.7
6” 6.63” (162.3mm) 10.6 12 14.4 21.6 34.6