Quad Saw Box - Horsepower

hp = fpm x tdoc x kf x sg x 100 ÷ 144 ÷ ade x 100

hp = horsepower
fpm = feed speed
tdoc = total depth of cut (all saws on one arbor)
kf = kerf (inches)
sg = specific gravity
ade = arbor drive efficiency %

Specific Gravity:

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