Sumi Dual Mill DMS Series
■ Ramping / Helical Milling Upper Limit
Helical Milling
Precautions for Helical Milling
Ramping
Pitch
Pitch
Pitch
Pitch
Pitch
Pitch
● Above the max. machining diameter, the center uncut portion can be removed by traverse cutting with the same cutter. ● Below the min. machining diameter, the center uncut portion cannot be removed with the same cutter.
a p
a p
a p
RMPX
RMPX
DCX
DCX
DCX
DCX
DCX
DCX
DCX
DCX
DCX
Full Diameter
Full Diameter Full Diameter
Full Diameter
Full Diameter
Full Diameter
H
DMSL
Ramping
Helical Ramping
Max. Dia. DCX (inch / mm)
Max. Ramping Angle RMPX (°)
Standard Diam- eter (Inch)
Min. Machining Dia. (Inch / mm)
Max. Machining Dia. (Inch / mm)
Max Pitch
Max Pitch
Max Pitch
0.625 0.750 1.000 1.250 1.500 2.000 2.500
0.6 1.0 0.9 0.7 0.6 0.6 0.8 1.0 1.0 1.0 1.0 0.9 0.8 0.7 0.6 0.5 0.5
1.224 1.472 1.972 2.472 2.972
0.024 0.039 0.039 0.039 0.039
0.949 1.197 1.693 2.193 2.693
0.019 0.024 0.035 0.035 0.039
0.929 1.134 1.602 2.091 2.575
0.010 0.019 0.019 0.019 0.019
Not recommended Not recommended
16 18 20 22 25 26 28 30 32 35 40 42 50 52 63 66 80
31.3 35.3 39.3 43.3 49.3 51.3 55.3 59.3 63.3 69.3 79.3 83.3
0.6 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
24.4 28.3 32.3 36.3 42.3 44.3 48.2 52.2 56.2 62.2 72.2 76.2
0.3 0.4 0.6 0.7 0.9 0.9 0.9 1.0 1.0 1.0 1.0 1.0
23.8 27.2 30.5 34.3 39.9 41.8 45.7 49.6 53.6 59.5 69.6 73.5
0.25
0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
Not recommended Not recommended Not recommended Not recommended Not recommended
DMSW
Ramping
Helical Ramping
Max. Dia. DCX (inch / mm)
Max. Ramping Angle RMPX (°)
Standard Diam- eter (Inch)
Min. Machining Dia. (Inch / mm)
Max. Machining Dia. (Inch / mm)
Max Pitch
Max Pitch
Max Pitch
1.500 2.000 2.500 3.000 4.000
0.8 1.4 1.2 1.2 0.8 0.5 0.8 0.8 1.4 1.4 1.2 1.2 1.2 1.2 0.8
2.972 3.972 4.972 5.972 7.972
0.063 0.079 0.079 0.079 0.079
2.346 3.343 4.343 5.339 7.339
0.031 0.079 0.079 0.079 0.079
2.252 3.185 4.118 4.976 6.976
0.020 0.039 0.039 0.039 0.039
35 40 42 50 52 63 66 80 85
69.3 79.3 83.3 99.3
1.3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
53.5 63.4 67.4 83.3 87.3
0.5 1.0 1.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
52.0 60.2 63.9 79.1 82.8
0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0
103.3 125.3 131.3 159.3 169.3 199.3
109.3 115.3 143.2 153.2 183.2
103.6 109.4 134.0 144.0 174.0
100 125 160
Not recommended Not recommended
H156
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