E121HX / E123HX
Recommended Milling Conditions
Chamfering
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.1 Carbon Steel
GR.8 Stainless Steel
GR.9 Cast Iron
GR.15 Aluminium
Work Material
60~90
60~90
50~80
30~50
30~50
30~50
60~90
100~200
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
E121HX/E123HX-2 2 10,500 945 10,500 630 9,550 573 4,780 215 4,780 215 4,780 215 10,500 945 24,000 2,160 E121HX/E123HX-3 3 8,500 893 6,900 725 6,400 672 3,180 239 3,180 239 3,180 239 8,500 893 16,000 1,680 E121HX/E123HX-4 4 5,500 660 5,500 660 5,200 624 2,800 252 2,800 252 2,800 252 5,500 660 11,940 1,612 E121HX/E123HX-5 5 4,500 675 4,500 675 4,150 623 2,300 242 2,300 242 2,300 242 4,500 675 9,550 1,576 E121HX/E123HX-6 6 3,700 666 3,700 666 3,450 621 2,120 254 2,120 254 2,120 254 3,700 666 8,000 1,440 E121HX/E123HX-8 8 3,180 763 3,180 763 2,780 667 1,600 240 1,600 240 1,600 240 3,180 763 6,000 1,440 E121HX/E123HX-10 10 2,550 765 2,550 765 2,230 669 1,270 229 1,270 229 1,270 229 2,550 765 4,800 1,440 E121HX/E123HX-12 12 2,380 714 2,380 714 1,990 597 1,200 252 1,200 252 1,200 252 2,380 714 4,000 1,200 E121HX/E123HX-16 16 1,800 594 1,800 594 1,500 495 1,000 240 1,000 240 1,000 240 1,800 594 3,000 990 E121HX/E123HX-20 20 1,400 546 1,400 546 1,200 468 800 192 800 192 800 192 1,400 546 2,400 936
ap:0.3D ap:0.3D ap:0.3D ap:0.3D ap:0.3D ap:0.3D ap:0.3D ap:0.3D
（ mm ）
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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