Flow's HyperPressure pump, called the HyperJet® 94i, is rated at 94,000 psi and delivers continuous operating pressure at an incredible 87,000 psi, — a large increase in pressure from traditional 55,000 to 60,000 psi rated ultrahigh-pressure systems. Much as the wattage of a CO2 laser increases cut speed, increased water pressure increases cut speed.

As the pressure goes up the stream velocity increases, delivering greater cutting power density. With the 94i HyperJet pump, stream velocities approach Mach 4, four times the speed of sound.

From stone to aluminum, steel to exotic composites, increases of 30-50% in cutting speeds are a result of accelerating the abrasive waterjet stream to the fastest level available. Regardless of material or thicknesses, cutting speeds increase with higher pressure.