Cutting Fluid Formulas: Optimize Holemaking Efficiency | WIDIA

Calculate Velocity, Power, Flow or Orifice Size, Efficiency, and Minimum motor size.

These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.

Pressure and Velocity
Metric
Inch

Pressure and Velocity

PSI bar
in. - Diameter mm - Diameter You may use either flow or orifice, but not both.
Efficiency

Efficiency

PSI PSI
If efficiency is unknown, use 85% as a general rule.
Results

Results

ft/min m/min
hp kW
gpm liters/min Tip('Which ever value not selected above is calculated here.')
%
hp kW
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