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RCF ↔ RPM Rotor Converter

Convert RPM and ×g with rotor lookup, tri-radius output, protocol transfer, and copy-ready methods text.

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Selected: Beckman Coulter JA-20

Radius

rmin (mm)

ravg (mm)

rmax (mm)

RPM

Duration (min)

Temp (°C)

RCF (×g)

rmin3,577.6 ×g

ravg7,826 ×g

rmax12,074.4 ×g

Force gradient (top → bottom)

rminravgrmax

Methods text

Formula: RCF (×g) = 1.118×10⁻⁶ × r(mm) × RPM². Use rmax ×g for pelleting; rmin–rmax span matters for gradients. Protocol transfer matches RCF at rmax; target RPM is rounded to the nearest integer. With tube adapters, subtract adapter bottom thickness from rmax per manufacturer guidance.