Manufacturing Engineering

Spindle Speed Simulator

Determine the required lathe spindle speed or milling cutter RPM based on workpiece diameter and recommended cutting speed (v) presets.

Material Preset

Aluminum

50 m/min

Spindle Max

6000 RPM

Limit setting

Output

CSV

Export ready

Material Preset

Cutting Speed (v)50 m/min

10500

Tool/Workpiece Diameter (D)25 mm

1200

Spindle rotation

Spindle Speed (N)

N = (v * 1000) / (π * D)

Angular Velocity (ω)

ω = 2 * π * N / 60

Surface Speed (v_s)

v_s = π * D * N / (60 * 1000)

At D = 25 mm and cutting speed v = 50 m/min, spindle must run at 637 RPM.

Note: Smaller diameters require exponentially higher spindle speeds to maintain cutting velocity.

Spindle Speed

637RPM

Angular Velocity

66.67rad/s

Surface Speed

0.83m/s

Radius (D/2)

12.5mm