Progressive cavity pumps, also known as helical rotor pumps or cavity pumps, are a type of rotary positive displacement pump that has a single threaded helically shaped rotor turning inside of a double-threaded helically shaped rubber stator.

This produces a progressing cavity that moves the liquid through the pump and creates the pumping action.

Helical rotor pumps are used extensively in sewerage and water treatment plants to pump polymer, sludge and chemicals

Helical Rotor Pumps

They are also used in all types of industrial applications for pumping a wide variety of thin and thick liquids, including corrosive liquids and liquids containing solids.

As progressive cavity pumps can handle difficult, thick and solid laden liquids, they can often be used in applications where no other pump would perform.

All Pumps carries a wide range of quality helical rotor pumps from major brands including Netzsch and Mono.

Brands we Sell, Stock & Service

First in Class. Low Cost Ownership. High Reliability for Different Industrial Applications

Wangen is an ISO 9001, ISO 14001, ISO 45001, and DIN EN ISO 3834 certified pump manufacturer that’s known for its revolutionary fluid handling technologies. Wangen has been a leader in the manufacture of sanitary twin screw pumps for over five decades until it jumped into the competition in creating progressing cavity pumps. 

The MX progressing cavity pumps boast modular design and robust construction making them ideal for various applications including hygienic pumping as well as chemical, paint, lacquer and paper transfer. A feature unique to the MX range is its EvenWall® technology, which offers significantly higher pressure stability. The pumps also have high hygiene standards around the joints and seals.

All Wangen pumps carry great versatility, making them able to handle abrasive, adhesive, high viscous, and crumbly materials, as well as liquids that require high hygiene standards. Employing high quality materials, Wangen pumps are made to last longer than others and ensure low maintenance costs.

The Wangen progressing cavity pump range is divided into five types:

  • Immersion Pumps
  • Hygienic Progressing Cavity Pumps
  • Hopper Feed Pumps
  • Hygienic Hopper Feed Pumps
  • Suction Pumps

Sounds like a Wangen progressing cavity pump is the right equipment for your business? Click HERE to read the full details on Wangen pumps and check with our experts whether they are the ideal fit for your system.

Certified Quality Pumps. Economic Solution For Any Industrial Sectors

Mono by NOV has a strong presence in many industries worldwide after getting ISO certified for their range of progressing cavity pumps. With almost a century of experience, Mono has pushed pump performance beyond limit and came up with a variety of PC pumps to handle different fluid transfer requirements by different industries.

Now ISO 9001, 9001:2000 and 14001 Certified!

All Mono progressing cavity pumps are built with quality and performance as top priorities. With that, Mono is now found in many sectors with wastewater, pulp and paper, mining, food, and chemical industries as their biggest clients.

Features and Benefits:

  • Self-priming, hence offering remarkable suction lift up to 8.5 m and high-pressure capabilities to make it easier to pump over longer distances at high and low flow.
  • Require very little maintenance
  • Runs silently
  • Simple design makes it easier to service
  • Resilient stainless steel rotor and stator to withstand pumping solids
  • Minimum to no risks of pump blockage
  • Low running speed capabilities to transfer abrasive liquid with ease
  • Flexible installation orientation to better suit flow requirements
  • Rotor operates in a rolling motion for quick release of trapped solids
  • Equipped with Flexishaft® to help minimize component damages.
  • Requires low inlet pressure to operate at the required duty point
  • Ideal solution when the constant flow is required in the system but fluid viscosity is varying.

With these features, Mono PC pumps are widely used for applications revolving around sewage and sludge pumping, dirty wastewater handling, bilge water removal, viscous chemical pumping, shear sensitive product transfer, pulp, paper paste, and starch handling, biomass transfer, oil transfer, and fluid dosing.

To cater to the unique demands of different sectors, Mono came up with a full range of Progressive Cavity Pumps featuring 12 selections. To see them and their full technical info, click HERE.

Compact Design. Proven Reliable High-Pressure PC Pump. Low Maintenance Cost.

Roto is one of the frontrunners in the design, manufacture, and supply of pumps suitable for demanding and heavy pumping applications. For almost four decades, many companies across the globe have relied on Roto systems for higher pump efficiency and durability while handling a variety of easy and tough-to-handle liquids and materials. 

The range of progressing cavity pumps made by Roto is heavy-duty in construction and is designed to pump highly viscous and solid-laden fluids with ease. The construction of these pumps is based on modular concepts making it highly customizable to meet the requirements of different pumping applications that need to transfer fluid with varying viscosity levels and chemical properties. 

Key Features and Benefits:

  • Self-priming – Works independently and does not require a foot valve.
  • Non-Clogging – Designed to handle solid in suspension or any solid-laden media.
  • Low NPSH Requirement – Operates efficiently amidst high vacuum conditions and comes with suction lift capabilities of up to 9.5mWc.
  • Low Internal Velocity – Minimum deterioration of shear-sensitive products but can also effectively handle highly viscous fluids having pseudo-plastic characteristics.
  • Reversible Rotation Capabilities – Able to operate with equal efficiency in either direction.
  • Silent Running – Rotors turn inside a resilient stator and thus generate little noise.
  • Separate Bearing Housing – Can support clean pumping by separating the product zone so they won’t be contaminated

Roto Progressing cavity pumps are divided into 7 series to deliver more customized features for different industrial applications. Click HERE to discover the Roto pumps available at All Pumps.


Always focused on the benefit to the customer, the All Pumps product range of Netzsch progressive cavity pumps covers everything from the smallest dosing pumps conveying a few milliliters to large pumps for up to 1000m³/h.


Progressive cavity pumps are positive displacement rotating pumps that have an almost pulsation-free liquid flow and are ideal for pumping liquids from those as thin as water to those with high viscosity, with or without solids.

The helical rotor pumps are available with conveying systems in four different rotor/stator geometries, which means the pump can be configured specifically for your application.