The Truth About Cut Point No One Talks About

“This shaker cuts at 100 microns.” It is the most repeated line in solids control — and it is misleading. Separation is a process, not a number. This video unpacks what cut point actually is, and why quoting a single micron figure hides more than it tells.

Every separation device removes a range of particle sizes, not everything above a clean line. The number people quote is usually the D50 — the size at which half the particles are removed and half pass. What really matters is the sharpness of that cut: how quickly removal climbs from 0% to 100% across the size range. Two devices with the same D50 can perform completely differently.

What this video covers

• Why cut point is a distribution (D50), not a single wall
• The difference between a sharp cut and a poor one — and why it matters more than the headline micron
• Why a ‘100-micron screen’ does not remove everything above 100 microns
• How API RP 13C frames separation potential honestly
• What to ask for instead of a single cut-point number