Spindle Power Calculator
Calculate required spindle and motor power from material removal rate and specific cutting energy.
How to Use the Spindle Power Calculator
- Enter material removal rate in mm³/min.
- Enter specific cutting energy in J/mm³.
- Enter spindle efficiency.
- Review power requirements in kW and hp.
Use Cases
- •CNC machine selection
- •Heavy machining verification
- •Spindle load monitoring
Formula
P = MRR × Specific Energy / (60000 × η)
Frequently Asked Questions
How accurate is this calculator?
Results are based on standard engineering formulas and are suitable for preliminary estimates.
What units are used?
SI units (metres, kg, kPa) are used unless otherwise noted.
Is it free?
Yes, all calculators are completely free.