Inclined Trommel Slope & Retention Calculator

Calculate material axial transport velocity ($v = pi D n sin(alpha)$) and retention residence time (10 to 45 seconds) inside gravity-inclined rotary trommel drums: optimize drum tilt angle ($3^circ ext{ to }7^circ$) to achieve 98% fines recovery without carrying undersize particles into the reject oversize chute, and recycling profits.