🌀 Trommel Dynamics (Critical Speed nc = 42.3/sqrt(D), Cascading Tumbling Speed 40%-50% nc)

Rotary Trommel Screener Critical Speed Calculator

Size industrial rotating cylindrical drum trommel screeners (McLanahan / Doppstadt / Vermeer) for municipal solid waste, compost, and mineral ore classification: calculate theoretical critical centrifuging speed ($n_c = rac{42.3}{sqrt{D}} ext{ in RPM}$), operate at 40% to 50% of $n_c$ for maximum cascading tumbling and particle presentation, and screening profits.

1. Project & Operating Inputs

Trommel Drum Diameter (Feet e.g. 6.5 Foot Diameter Cylindrical Drum)

Material Feed Rate (TPH e.g. 45 TPH Solid Waste / Compost)

Customer Bid Price for Supplied & Landed Rotary Trommel ($)

Heavy Structural Skid, 6.5ft x 20ft Perforated Drum, SEW Gear Drive ($)

2. Financial Breakdown & Yield

ROTARY TROMMEL DYNAMICS

Turnkey Trommel Screener Machine Profit

Bulk Solids Screening Machinery Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost