?Estimate circular sawbox rim speed, tooth pitch, tooth bite and gullet fill.
Feed Speed mode calculates the maximum feed speed, limited by available power, gullet capacity and the max. feed speed. Power mode calculates the power required at a given feed speed.
Saw Data sets the saw geometry and drive. Cutting Data sets the inside and outside depths of cut, species and gullet factors.Circular Sawbox Saw Calculator
Gray boxes are editable cells; all others are calculated.
Circular Sawbox Saw Calculator
Saw Data
Arbor rpm
Saw diameter
in
?Diameter of the arbor spline or saw collar. Together with the saw diameter and gullet depth, it sets the maximum depth of cut.Spline or collar dia.
in
Number of teeth
Gullet depth
in
Kerf
in
Power
hp
?Must be between 80% and 100%.Arbor drive efficiency
%
Max. feed speed
fpm
Cutting Data
?The depth of cut for the bottom inside saw of one side. This saw cuts the inside sideboard of a possible two sideboard cant and is typically buried close to its maximum depth. Must be greater than 0.
The maximum depth of cut is restricted to (saw diameter − spline or collar dia.) ÷ 2 − half the gullet depth.Depth of cut inside saw in
The maximum depth of cut is restricted to (saw diameter − spline or collar dia.) ÷ 2 − half the gullet depth.Depth of cut inside saw in
?The depth of cut for the bottom outside saw of one side, used when cutting a two sideboard cant. Set to 0 for a one sideboard cant.
The depth of cut for the outside saw must be less than or equal to the depth of cut for the inside saw.Depth of cut outside saw in
The depth of cut for the outside saw must be less than or equal to the depth of cut for the inside saw.Depth of cut outside saw in
?Selecting a species sets its specific gravity. Entering a specific gravity manually sets the species to "Other".Species
?SG = Specific Gravity of the wood species.Specific gravity
?1.8–2.0 for slow growing species (e.g. Northern Spruce); 2.5 for fast growing species (e.g. Southern Yellow Pine).Sawdust expansion factor
?Gullet area factor is 0.42 for square back tooth, 0.52 for round back.Gullet area factor
Saw Outputs
?Saw speed at the tooth tips: π × saw diameter × arbor rpm.Rim speed
0fpm
?Distance between teeth: π × saw diameter ÷ number of teeth.Tooth pitch
0.000in
?Feed advance per tooth: feed speed ÷ (arbor rpm × number of teeth).Tooth bite
0.000in
?Tooth pitch × gullet depth × gullet area factor.Gullet area
0.000in²
?Expanded sawdust volume in the inside saw's gullets as a % of gullet capacity. Values of 100% or more are shown in red.Gullet fill
0.0%
?The lowest of the max. feed speed, the power-limited feed speed and the gullet-capacity-limited feed speed.Feed speed
0fpm