?Estimate gang edger 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 depth of cut, number of saw lines, species and gullet factors.Gang Edger Saw Calculator
Gray boxes are editable cells; all others are calculated.
Gang Edger 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
?Depth of cut on the arbor being calculated. 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 in
The maximum depth of cut is restricted to (saw diameter − spline or collar dia.) ÷ 2 − half the gullet depth.Depth of cut in
?Number of saws on the arbor being calculated. Must be 1 or greater.Number of saw lines
?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 each 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