📐 Internal Lifters (Spiral In-Feed + Serrated Showering Lifters, 85% Curtain Density)

Rotary Cooler Internal Flight Cascade & Curtain Calculator

Design internal showering flight geometries (spiral advance flights, radial serrated lifters, and vee-flights) across rotary cooler cross-sections: establish dense cascading material curtains ($>85% ext{ cross-sectional curtain density}$), maximize gas-solid contact area, and thermal efficiency yields.

1. Project & Operating Inputs

Drum Internal Diameter (Feet e.g. 8.0 Foot Diameter Rotary Drum)

Drum Active Length (Feet e.g. 50.0 Foot Cooling Shell Length)

Customer Bid Price for Supplied Custom Lifter Package ($)

AR400 Hardened Serrated Lifters, Spiral Feeder Ribs, Heavy Fasteners ($)

2. Financial Breakdown & Yield

85% MATERIAL CURTAIN DENSITY

Turnkey Cooler Flight Retrofit & Fabrication Profit

Drum Internal Mechanical Engineering Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost