?Estimate chipping head cant face, chipping area, feed speed and power for chipping one face of a log.
Feed Speed mode calculates the maximum feed speed, limited by available power and the max. feed speed. Power mode calculates the power required at a given feed speed.
Log Data sets the log diameter, species and density. Chipping Data sets the depth of cut, power, drive efficiency and feed speed.Chipping Head Horsepower
Gray boxes are editable cells; all others are calculated.
Chipping Head Horsepower
Log Data
Log diameter
in
?Selecting a species sets its density. Entering a density manually sets the species to "Other".Species
?Wood density of the selected species, based on its specific gravity × 62.4 lb/ft³.Density
lb/ft³
Chipping Data
?Depth of the chipped slab measured in from the log surface on one face. Must be greater than 0.
The maximum depth of cut is restricted to half the log diameter.Depth of cut in
The maximum depth of cut is restricted to half the log diameter.Depth of cut in
Power
hp
?Must be between 80% and 100%.Arbor drive efficiency
%
Max. feed speed
fpm
Chipping Outputs
?Width of the flat face left on the cant: 2 × √(r² − (r − depth of cut)²), where r is the log radius.Cant face
0.000in
?Cross-sectional area of the circular segment removed by the chipping head.Chipping area
0.000in²
?The lower of the max. feed speed and the power-limited feed speed.Feed speed
0fpm