Decanter Centrifuge Calculator
The Decanter Centrifuge Calculator computes the G-factor (centrifugal acceleration), an approximate sigma factor, and equivalent gravity settling velocity for early-stage centrifuge performance checks.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
Decanter Centrifuge Calculator
G-Factor & Centrifuge Performance Calculator
📐 Formula & Method
G-Factor
The bowl diameter is divided by two to get radius. RPM is converted to rad/s before calculating centrifugal acceleration.
Approximate Sigma Theory
Equivalent gravity settling velocity is based on Sigma Theory. Sigma is approximate here because exact bowl length, pond depth, cone angle, and internal geometry are not supplied.
📋 How to Use
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1
Enter feed rate in m3/h.
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2
Enter bowl diameter and RPM.
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3
Review G-factor and equivalent gravity settling velocity.
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4
Use the result only as a preliminary comparison, not final equipment sizing.
🧮 Worked Examples
Validation case
Feed 10 m3/h, bowl diameter 0.45 m, speed 3000 RPM.
Decanter Centrifuge Calculator — Engineering Reference
The G-factor calculation is deterministic from bowl radius and angular velocity. The sigma factor shown here is an approximate equivalent settling area using an assumed length-to-diameter ratio.
Final decanter centrifuge sizing must use vendor geometry, solids capture targets, rheology, polymer dose, cake dryness requirements, hydraulic limits, and pilot or site data.
🔬 Methodology & Accuracy
Formula: Uses G = omega^2 r / g with RPM converted to rad/s and radius from bowl diameter. Sigma and equivalent settling velocity are approximate Sigma Theory estimates with assumed L/D = 2.5.
Data sources: Standard centrifuge G-factor formula and Sigma Theory preliminary sizing relationship v = Q / Sigma.
Last reviewed: June 2026 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.