crystals increasing the diameter of the screw conveyor or reducing the pitch of the screw . • Incline Between 10 and 20-Degrees – Loss in conveying efficiency is typically between 10 and 40-percent on inclines up to 20-degrees . a screw conveyor with U-trough and 2/3-pitch screwThe capacity of a screw conveyor with a standard screw flight can be estimated the following way : With. Q = screw capacity in kg/h. D = screw diameter in m. S = screw pitch in m. N = screw speed in rpm. α = loading ratio. ρ = material loose density in kg/m3. C = inclination correction factor.Screw Dia. (inches): 5 Length (feet): 12. Unused. Surplus Twin Screw Dual Feeder Auger Conveyor 6" Dia. X 6'-8" Long. UNUSED All carbon steel construction. Full bolt-on cover with inspection hatch above discharge. Product inlet is a 6"Ø sleeve centered on the top of a drop-thru,