B250TX
Recommended Milling Conditions
General processing
GR.2 Low-alloyed Steel （ ~24HRC ）
GR.3 Hi-alloyed Steel （ ~30HRC ）
GR.4 Hardened Steel （ 30~38HRC ）
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48~56HRC ）
GR.1 Carbon Steel
Work Material
85
85
65
65
45
30
Vc m/min
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
B250TX-R0.5 B250TX-R1 B250TX-R1.5 B250TX-R2 B250TX-R2.5 B250TX-R3 B250TX-R4 B250TX-R5 B250TX-R6
1 20,000 2 11,000 3 5,900 4 5,300 5 4,400 6 3,300 8 2,600 10 2,200 12 2,650
125 130 230 310 305 290 275 275 700
20,000 11,000
125 130 230 310 305 290 275 275 700
15,000 85,000
120 120 190 230 230 230 220 220 490
15,000 85,000
120 120 190 230 230 230 220 220 490
11,000 6,400 3,500 2,950 2,450 1,850 1,450 1,200 1,850
65 70 90 90
7,100 4,000 2,150 1,850 1,500 1,200
30 40 45 55 55 50 50 45
5,900 5,300 4,400 3,300 2,600 2,200 2,650
5,000 4,200 3,500 2,600 2,100 1,750 2,100
5,000 4,200 3,500 2,600 2,100 1,750 2,100
100
95 95 90
950 800
430
2,100
490
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
（ mm ）
ae:0.02D
ae:0.02D
ae:0.02D
ae:0.02D
ae:0.02D
ae:0.02D
1. Please work with good rigidity / high precision facilities and collet chuck. 2. Please choose proper cutting fluid.
3. The cutting data is reference value only. Please adjust it according to your real working conditions. 4. If RPM is lower the reference value, the Feed rate (fz) and RPM should be reduced by the same proportion. 5. If vibration occurs during cutting, please reduce cutting parameter.
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