Sinusoidal Pumps

Sinusoidal Pumps

Preserving Product Integrity While
Preventing Blockages and Pump Damage

A sinusoidal pump is a type of pump featuring a sine wave-shaped rotor that creates four moving chambers, which gently convey the duty fluid from the inlet port to the higher pressure discharge port. The pump’s patented design was developed by MasoSine, an engineering company that is part of the Watson-Marlow Fluid Technology Group.

The gate prevents any fluid passing back from the discharge side to the lower-pressure suction side of the pump.

The MasoSine pump is a highly reliable and economical Positive Displacement Pump for sanitary and industrial applications. Our exclusive sinusoidal rotor overcomes the limitations of conventional rotary lobe pumps to produce powerful suction with low shear, low pulsation, and gentle handling…all with simple and fast maintenance and 3-A certification.


Operating Principles
of Sinusoidal Pumps

It is the attraction of the drive magnet and the impeller magnet which allows the full torque of the motor to be passed onto the impeller. As the shaft of the motor does not extend into the interior of the pump, there is no need for a shaft seal. As the impeller is not fixed to the motor shaft, the impeller floats inside the pump housings. The impeller spins, at the same speed as the motor, supported by a stationary shaft. The only moving part which touches the liquid is the impeller.

Without a shaft seal, the danger of leakage commonly associated with a shaft seal is eliminated. Furthermore, the maintenance cost is reduced because no time or money is spent on maintaining or replacing the shaft seal.


Sinusoidal Pump Design Benefits


Brands we sell, stock
& service

All-Pumps has an extensive range of sine pumps from the world’s most trusted manufacturers. Spare parts are also available for emergency cases. We also have trained and experienced staff who can be dispatched to the field to carry out quick and effective sinusoidal pump servicing. 



All-Pumps offers bespoke solutions to your manufacturing processes. Whether you need a new pump, replacement part, repair services, system design, or monthly maintenance, call our professionals! 

Our customer support services set us apart, we take responsibility to give you the best experience possible. 

How our experts can help you: 

  • Design and cost a system or project 
  • Customise and engineer solutions for your specific application 
  • Provide spare parts and maintenance services
  • Conduct Site-Wide Pump Health Audits with our Nexus Program
  • Pump Manuals and Technical Guides 

And so much more! 

Get in touch

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