CNC Kalkulator

Spindle speed from cutting speed

Calculates spindle speed from cutting speed and tool or workpiece diameter.

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How to use the result

Use the cutting speed recommended by the tool manufacturer for your material. The cutting-data tool provides a starting value when it is unavailable.

For turning, the effective diameter changes with every cut. Calculate at the cutting-edge diameter or use constant surface speed (G96) with a spindle-speed limit.

Formulas

n = vc · 1000 / (π · d)vc = π · d · n / 1000

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

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