* Flat belt load areas & capacity for conveyor (Refer to “Belt Conveyors for Bulk Materials”:CEMA) 1. Flat belt load areas • Load area As =Area sector (ABCE) = (π r^2𝛼/180)-(r^2 sin2𝛼/2) = r^2{(π𝛼/180)-(sin2𝛼/2) = {(0.890b-1.8)/2sin𝛼}^2 × {(π𝛼/180)-(sin2𝛼/2)} = {(0.445b-0.9)/sin𝛼}^2 × {(π𝛼/180)-(sin2𝛼/2)} = ( ) (in^2) - b = width of belt (inches) - r = radius of surcharge arc (inches) - 𝛼= angle..
