Model 604SB thru 612SB Clamshells
92-1197 Rev. 200519
27
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"
323.9mm
5
6
7
12.50"
317.5mm
5
6
8
11.75"
298.5mm
5
7
8
11.50"
292.1mm
6
7
8
11.25"
285.8mm
6
7
8
10"
10.75"
273.1mm
6
7
9
10.25"
260.4mm
6
8
9
9.75"
247.7mm
7
8
10
9.00"
228.6mm
7
9
11
8"
8.625"
219.1mm
7
9
11
7.500"
190.5mm
9
11
13
6"
6.625"
168.3mm
10
12
14
6.000"
152.4mm
11
13
16
5"
5.563"
141.3mm
12
14
17
4"
4.500"
114.3mm
14
18
21
3.5"
4.000"
101.6mm
16
20
24
3"
3.500"
88.9mm
18
23
27
2.5"
2.875"
73.0mm
22
28
33
2"
2.375"
60.3mm
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.
Содержание 604SB
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