Wood Lathe Speed Calculator

Wood Lathe Speed Calculator calculator can be used to calculate the surface speed, spindle speed, and chip load for woodturning operations on a lathe.

Input Parameters

Calculation Results

Calculation Formula

Surface Speed (SFPM) = π * Diameter * RPM / 12

Where:
π = 3.14159
Diameter = Workpiece diameter in inches
RPM = Spindle speed in revolutions per minute
SFPM = Surface feet per minute

Wood Lathe Speed Calculator Calculator Usage Guide

Learn how to use the Wood Lathe Speed Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the diameter of your workpiece in inches.
  2. Enter the spindle speed of your lathe in RPM (Revolutions Per Minute).
  3. Enter the chip load in inches per revolution.
  4. Click the "Calculate" button to compute the surface speed and chip load.

Understanding the Results

The surface speed (SFPM) indicates how fast the surface of the workpiece is moving relative to the cutting tool. This is crucial for achieving optimal cutting conditions and ensuring the quality of the finished product.

The chip load is the amount of material removed by the tool in one revolution. Proper chip load helps in maintaining the tool's life and the quality of the cut.

Example

If you have a workpiece with a diameter of 4 inches and your lathe runs at 300 RPM, the surface speed would be calculated as follows:

Surface Speed (SFPM) = π * 4 * 300 / 12 = 251.33 SFPM