Free spindle power and torque calculator

Calculates available spindle power from rated power, knee speed, and spindle speed.

Rated power

Base speed

Operating speed

Required cutting power

Efficiency

How to use the result

The calculation describes the specified model. Check the tool, workholding, and machine limits before use.

M = 30000 · P / (π · n)P(n) = P_N · min(1, n/n_base) · η

Sources: https://www.sandvik.coromant.com/en-gb/knowledge/machining-formulas-definitions/milling-formulas-definitions