BULK HANDLING & LOGISTICS1 min reference noteScrew Conveyor Trough Loading, Pitch Selection & HorsepowerSource notes β linked publications and standards below; organisations and authors named there do not author or endorse this page.1. Screw Capacity FormulaQv = (Ο/4) Γ DΒ² Γ Pitch Γ RPM Γ 60 Γ Fill%PEER-REVIEWED TEXTBOOK & JOURNAL CITATIONSCEMA. (2019). CEMA Standard 350 - Screw Conveyors. [Access Reference]