B252-2.5HX
Recommended Milling Conditions
Side Milling
GR.1 Carbon Steel 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.8 Stainless Stell
GR.9 Cast Iron
GR.15 Titanium
Work Material
Ø1.0~2.5 60~80 Ø3.0~20 80~85
Ø1.0~2.5 47~70 Ø3.0~20 70~75
Ø1.0~1.5 47~57 Ø1.5~20 57~70
Ø1.0~2.5 30~47 Ø3.0~20 50~60
Ø1.0~2.5 30~47 Ø3.0~20 50~60
Ø1.0~2.5 75~80 Ø3.0~20 80~85
Ø1.0~2.5 60~80 Ø3.0~20 80~85
Ø1.0~2.5 15~25 Ø3.0~20 25~35
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)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
B252-2.5HX-11112,400 580 2,000 420 2,000 420 1,600 140 850 60 B252-2.5HX-12122,200 580 1,800 420 1,800 420 1,400 140 800 60 B252-2.5HX-13132,000 560 1,700 410 1,700 410 1,350 140 700 55 B252-2.5HX-14141,900 550 1,600 410 1,600 410 1,250 130 650 55 B252-2.5HX-15151,700 540 1,500 400 1,500 400 1,250 130 600 50 B252-2.5HX-16161,600 530 1,300 400 1,300 400 1,200 130 600 45 B252-2.5HX-17171,500 520 1,250 390 1,250 390 1,100 120 550 45 B252-2.5HX-18181,450 520 1,200 390 1,200 390 1,000 120 520 40
2,350 440 2,400 580 2,150 410 2,200 580 2,000 400 2,000 570 1,820 400 1,850 560 1,700 400 1,700 540 1,600 390 1,600 530 1,500 390 1,500 530 1,450 380 1,450 520 1,350 380 1,400 510 1,300 370 1,300 510
900 800 750 700 650 600 550 500 530 480
160 160 160 160 150 150 150 150 150 140
B252-2.5HX-19191,350 520 1,150 380 1,150 380 B252-2.5HX-20201,300 510 1,100 370 1,100 370
950 890
115 110
500 470
40 35
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.0D
ap:1.5D
ap:1.0
ae: ＜ 3 0.05D ≥3 0.1D
ae: ＜ 3 0.05D ≥3 0.1D
ae: ＜ 3 0.05D ≥3 0.1D
ae: ＜ 3 0.05D ≥3 0.1D
ae: ＜ 3 0.05D ≥3 0.1D
ae: ＜ 3 0.05D ≥3 0.1D
（ mm ）
ae:0.02D ae:0.05D
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.
18
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