What Horsepower for A Sawmill?

The horsepower needed for a sawmill depends mainly on the mill type, blade type, and the size/hardness of the logs.

Here are common ranges for portable sawmills:

1.A small portable band mill cutting softwood logs up to ~20 in (50 cm) often uses about 14–25 HP.

2.Production-grade portable mills commonly use 35–60 HP gas or diesel engines.

3.Large stationary circular mills may need well over 100 HP because circular blades consume much more power than band blades.

Power demand increases with:

wider cuts

harder woods (oak, hickory, maple)

faster feed rates

thicker boards

dull blades

A rough rule for band mills:

about 1–1.5 HP per inch of cut width for moderate cutting speeds.

Example:

If you are cutting a 24-inch hardwood log with a portable band mill:

practical engine size is usually around 35–50 HP.