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-1 1 20,000 240 15,000 215 15,000 215 10,000 85 B252-2.5HX-1.51.513,500 245 12,000 215 12,000 215 8,000 90
7,100 5,100
40 25,000 350 20,000 240 7,100
50
50 16,500 375 13,500 245 5,100 100 60 12,500 390 13,000 300 4,000 120 60 10,000 400 10,000 320 3,200 150
B252-2.5HX-2 2 13,000 300 11,000 280 11,000 280 7,000 110 3,900 B252-2.5HX-2.52.510,000 320 9,000 300 9,000 300 6,000 120 3,000
B252-2.5HX-3 3 8,800 500 7,200 350 7,200 350 5,300 125 2,700 60 B252-2.5HX-4 4 6,600 530 5,500 360 5,500 360 4,200 130 2,200 70 B252-2.5HX-5 5 5,300 600 4,350 420 4,350 420 3,500 140 1,900 75 B252-2.5HX-6 6 4,500 610 3,700 425 3,700 425 2,900 145 1,500 70 B252-2.5HX-7 7 3,800 600 3,200 425 3,200 425 2,500 145 1,200 70 B252-2.5HX-8 8 3,300 590 2,700 425 2,700 425 2,200 145 1,100 65 B252-2.5HX-9 9 2,900 590 2,500 425 2,500 425 2,000 145 1,000 65 B252-2.5HX-10102,600 580 2,200 420 2,200 420 1,700 145 950 65
8,500 400 8,800 500 3,200 180 6,500 440 6,600 530 2,400 180 5,200 460 5,300 600 2,000 190 4,300 460 4,500 610 1,600 190 3,650 460 3,800 600 1,400 180 3,200 460 3,300 590 1,200 170 2,850 460 2,900 590 1,100 165 2,600 460 2,600 580 1,000 160
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.
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