Posted on 1/22/2026
The Sine Pump, also known as a Cam Rotor Pump, Three-Lobe Helical Pump, or Sine Rotor Pump, is a rotary positive displacement pump that operates on the principle of meshing cam rotors. Its core lies in the uniquely designed "Sine Curve" profile rotor
Working Principle
The Sine Pump operates based on two (or three) "Sine Curve" profile helical rotors rotating in opposite directions, synchronized by timing gears.
Suction Phase: As the rotors turn, at the inlet side, the rotor lobes disengage from the meshed state. This creates a sealed cavity between the rotor lobes and the pump casing that increases in volume, genera...