Gang Edger - Horsepower

hp = fpm x doc x kf x #sl x sg x 100 ÷ 144 ÷ ade x 100

hp = horsepower
fpm = feed speed
doc = depth of cut (inches)
kf = kerf (inches)
#sl = number of sawlines
sg = specific gravity
ade = arbor drive efficiency %

Specific Gravity:

• Spruce = .35
• Douglas Fir = .45
• SYP = .47
• Oak = .60