Chipload Calculator

Royce//Ayr makes it easy to determine Feed Rates, Knife marks per inch & Chipload per tooth. View the recommended values in the charts below and use the calculator to determine approximate settings for your machinery. The calculation results should serve as a starting point to determine optimum feed speeds and RPM for your machinery

Click the Calculate button below
 

Approximate Values for Average Chip Load:

Furniture finish .012" to .032"
Mill finish .032" to .100"
Hogging .100" to .200"

Hook Angles

Knife Marks Per Inch
Wood
Species 		Kiln
Dried 		Wet or
Green
Ash
Basswood
Beech
Birch
Cedar
Cherry
Chestnut
Cottonwood
Cypress
Elm, Soft
Fir
Gum
Hemlock
Hickory
Mahogany
Maple
Oak
Pine
Poplar
Redwood
Spruce
Sycamore
Walnut		 10°
10°
10°
10°
15°
10°
10°
10°
10°
10°
15°
20°
15°
10°
10°
10°
10°
20°
20°
10°
20°
10°
10°		 15°
22°
15°
15°
25°
15°
15°
15°
15°
10°
15°
25°
22°
15°
15°
15°
15°
22°
30°
15°
25°
15°
15°
Wood
Species 		Marks
Per Inch
Ash
Basswood
Beech
Birch
Cedar
Cherry
Chestnut
Cottonwood
Cypress
Elm, Soft
Elm, Hard
Fir
Gum
Hemlock
Hickory
Mahogany
Maple
Oak
Pine
Poplar
Redwood
Spruce
Sycamore
Walnut		 11-14
8-12
12-14
12-16
8-12
12-14
8-12
8-12
8-12
8-12
10-13
8-12
9-14
8-12
12-16
12-16
12-14
12-14
8-14
8-14
8-12
8-12
10-14
12-14

* The values above are approximate calculations based on optimal cutting conditions. RPM may have to be adjusted based on application, material or machinery deficiencies.