REQUIRED SPINDLE POWER AND COOLANT PRESSURE

Net power (S45C, C45) Torque (S45C, C45)

10 70 9 60 8 7 50 6 fn = 0.1 mm/rev 40 5 4 30 3 20 2 fn = 0.05 mm/rev 10 1 0 0

1020 15 2530 25 20 15 30 10
Drill dia.: DC (mm)Drill dia.: DC (mm)
Vc = 120 m/minVc = 80 m/min
fn = 0.1 mm/revfn = 0.05 mm/rev
Vc = 120 m/minVc = 40 m/min
fn = 0.05 mm/revfn = 0.1 mm/rev
Vc = 80 m/minVc = 40 m/min
fn = 0.1 mm/revfn = 0.05 mm/rev
Net power (S45C, C45)Torque (S45C, C45)
10120
9
8100
7
80
6
560
4
340
2
20
1
00
2535 30 4045 40 35 30 45 25
Drill dia.: DC (mm)Drill dia.: DC (mm)
Vc = 100 m/minVc = 60 m/min
fn = 0.25 mm/revfn = 0.25 mm/rev
Vc = 100 m/minVc = 60 m/min
fn = 0.2 mm/revfn = 0.2 mm/rev
Vc = 100 m/minVc = 60 m/min
fn = 0.15 mm/revfn = 0.15 mm/rev
Vc = 100 m/minVc = 60 m/min
fn = 0.1 mm/revfn = 0.1 mm/rev
Coolant pressure (Recommended value)Coolant flow rate (Recommended value)
470
3.5
60
3
2.550
2
1.540
1
30
0.5
020

10 15 20 25 30 35 40 10 15 20 25 30 35 40

Drill dia.: DC (mm) Drill dia.: DC (mm)