Solids Handling Pumps & Stirrers

Reduce clogging and wear

Solids handling pumps are designed to move fibrous, thick, and grit-laden materials without clogging or excessive wear. Different pump types achieve this through specialised designs:

Vortex Pumps: Use a recessed impeller to create a vortex, allowing solids to pass with minimal contact, reducing wear.
Progressive Cavity Pumps: Utilise a helical rotor-stator system to move thick, shear-sensitive materials like sludge and food waste.
Self-Priming Centrifugal Pumps: Handle solids while allowing easy re-priming, making them ideal for intermittent operation in wastewater and industrial drainage.
Twin Screw Pumps: Offer smooth, pulsation-free flow, ideal for viscous and shear-sensitive fluids in food processing and chemical industries.

Prime Fluid Management can recommend the solids-handling pump or stirrer to best meet your needs. Take a look at our range below.

SolidsPro

Pumps for tough media

SolidsPro vortex submersible pumps handle solids, slurries, and fibrous materials with minimal clogging. Their recessed impeller reduces wear, making them ideal for wastewater, mining, and industrial applications.

Pumps large solids without clogging
Reduced wear for longer pump life
Reliable in harsh environments
Low maintenance with fewer blockages

Built for efficiency and durability, SolidsPro vortex pumps offer a dependable solution for challenging media.

Wangen Progressive Cavity Pumps

Making light work of extreme viscosity

Wangen progressive cavity pumps are known for their, proven reliability in extreme applications, precision-engineered components, and ability to maintain flow integrity in challenging conditions.

Continuous, low-pulsation flow
Extreme longevity, under the most demanding industrial conditions
Customisable

Low energy costs, reduced downtime and maintenance.

Overview of our Solids Handling Pumps & Stirrers

Caffini Electric Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 152mm
Max Flow: 830L/min
Max Head: 15m
Max Solids: 60mm

View brochure

Caffini Petrol Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 102mm
Max flow: 520L/min
Max head: 15m
Max Solids: 60mm

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Wangen Hopper Feed PC

Wangen produces an extensive range of hopper feed pumps for slurries and pastes with high solids content (KL-R Series) and dewatered sludge (KL-RU, KL-RQ, KL-RS and KL-R Triplex models).

Max flow: 160m³/hr
Max pressure: 48 bar
Max solids: 45%
For extremely dry or lumpy material

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Proril Cutter Sewage Submersibles Featuring a chopper plate and tungsten carbide alloy tips the Proril GoCut Cutter series handles raw sewage, shredding fibrous materials to prevent clogging.

Size: 50mm –102mm (2” – 4”)
Max flow: 22L/sec
Max head: 20m
Max solids: 37mm

Download Datasheets

Vortex Sewage Submersibles Proril GOVOX series vortex sewage submersibles transfer large solids and fibrous matter without obstruction.
They offer low impeller wear and long pump life.

Size: 50mm –102mm (2” – 4”)
Max flow: 28L/sec
Max head: 34m
Max solids: 55mm

Download Datasheets

Proril Single Channel Sewage Submersibles Proril GOMAX series submersible pumps use a single-channel enclosed impeller with air-release valve for highly efficient, non-clogging sewage transfer.

Size: 76mm – 152mm (3” – 6”)
Max flow: 100L/sec
Max head: 42m
Max solids: 76mm

Download Datasheets

Wangen Self-Priming PC Pumps

Wangen's KL-S, KB-S and KB22S self-priming PC pumps convey high viscous media up to 200,000mPA-s with or without solids. The KB22S is designed specifically for dosing.

Max Flow: 560 m3/hr
Max Pressure: 48 bar
Materials: S/steel, cast iron

View Brochure

Wangen Hygienic PC Pumps

Wangen’s KB-SL, KL-SL and KL-RF hygienic progressive cavity pumps are tailored to convey low to very high viscosity media.

Max flow: 150m3/hr
Max temp.: 140°C
Max pressure: 48 bar
Max viscosity: 200,000 mPa-s

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Wangen Twin Screw

Wangen Twin Screw pumps ensure smooth, gentle pumping of viscous, abrasive or shear-sensitive fluids, with CIP/SIP cleaning and minimal downtime.

Max flow: 200 m3/hr
Max pressure: 30 bar
Max solids: 40mm

VIew Brochure

Wangen Vario Twin Screw

A patented feeder unit for the Wangen Twin Screw pump. Conveys highly viscous, non-flowable media with variable hopper length.

Max flow: 10 m3/hr
Max temp: 90°C
Max viscosity: 3,000,000 mPa-s

VIew Brochure

Varisco Self-Priming Centrifugal Pumps

Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

Max flow: 1200m3/hr
Max head: 110m
Max solids: 76mm
Self-priming 7.5m

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SolidsPro Stirrers

SolidsPro stirrers are used to ensure uniform mixing in waste liquids with solids present, to prevent sedimentation and enhance biological or chemical reactions. Commonly used to agitate dairy effluent storage sumps/tanks & ponds to prevent solids from settling out.

Cast AISI 316 S/Steel Propellor
AISI 304 S/Steel mounting brackets
Self-cleaning blades
Double mechanical seal in oil bath

View Brochure

SolidsPro Vortex Submersibles

Engineered to resist clogging SolidsPro vortex submersibles feature recessed impellers with large free passage. Ideally suited to pumping large volumes of waste fluids where solids or particle are present.

Max flow: 103m³/hr
Max head: 20m
Max solids: 80mm
Humidity probe: yes

View Brochure

Wangen PC Immersion Pumps

Wangen KL-T Series Progressive Cavity Immersion pumps safely convey media from tanks and pools with high metering accuracy even at low rpm.

Max Flow: 102m³/hr
Max Pressure: 6 bar
Max viscosity: 200,000 mPA-s
Max Dry Solids: 16%

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LJM Submersible Cutter/Shredder LJM (Lind Jensen) dry mounted slurry pumps offer durable, reliable performance with built-in shredders for the fine shredding of straw and feed residues, ideal for liquid manure with very high dry solid content.

Available Sizes: 5.5 kW to 18.5 kW.

View Brochure

Wangen Progressive Cavity PTO Pumps

Designed for agricultural use, Wangen’s PTO shaft pumps vacuum-load, unload and distribute tank manure supplies, or convey liquid feed.

High suction power
Insensitive to foreign bodies
Max flow: 470m³/hr
Max pressure: 16 Bar

View Brochure

Varisco Self-Priming Centrifugal Pumps

Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

Max flow: 1200m³/hr
Max head: 110m
Max solids: 76mm
Self-priming 7.5m

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Varisco Self-Priming Centrifugal Trash Pumps

Varisco ST-R Series pumps are built for handling solids-laden, abrasive fluids in demanding environments. Designed for dry-mounted setups, they offer fast priming and easy access for in-field maintenance.

Max flow: 420 m³/hr
Max head: 35 m
Max solids: 76 mm
Self-priming: 7.5 m

View Brochure

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They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

Mark CadwalladerCatchment Worker

This sort of unique system you set up is what sets you apart from others in the Market

Jacob Warmsley Project Manager

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

Peter FisherDirector

You guys had our backs from the get-go and stood beside us and persevered.

DaveOps Director

We called for a different type of solution…... We were pretty happy with what's been delivered

Rob KerrProject Director

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

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Industrial Pumping Solutions

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Questions

FAQ

At Prime Fluid Management, we understand that every fluid management challenge brings unique considerations. Here, you’ll find clear, practical answers and expert guidance to help you maximise uptime, achieve regulatory compliance, extend equipment life, and implement the most effective solution for your site.

Do you supply oil transfer pumps that can meet API 676 requirements?

Some positive displacement internal gear pump ranges are manufactured to API 676, with specific exceptions depending on the model. If API 676 compliance is part of your specification, we can confirm suitability during selection and provide the relevant documentation.

What’s the best oil transfer pump in NZ for diesel, fuel oil, or lubricating oil?

The best option depends on viscosity, temperature, and whether you need steady metered flow or high throughput transfer. For many industrial oils and fuels, internal gear and external gear pumps are common choices because they provide consistent flow and handle higher viscosity fluids well.

Can these pumps be specified for hazardous areas?

Yes, hazardous area options may be available depending on the selected pump and motor package. For example, some equipment ranges offer certified IECEx hazardous area rated configurations, which can be specified when the site classification requires it – including suitable options for Zone 1 and Zone 2 hazardous areas.

Do you need flooded suction, or can the pump run on suction lift and self priming?

It depends on the fluid, temperature, viscosity, and how the tank and pipework are laid out. A flooded suction setup is usually the most stable option for consistent performance, especially with higher viscosity oils, because the pump is always supplied with product.

If the pump needs to draw from a lower level or from a longer suction line, suction lift and self priming capability become important. However, the setup needs to be sized correctly to avoid issues like poor priming, air ingress, or cavitation. If you share your suction conditions and duty point, we can recommend a pump type and configuration that suits the installation.

What features help protect the pump and improve reliability on fuel and oil duties?

For fuel and oil applications, reliability often comes down to protecting the pump from pressure spikes and contamination, and selecting the right sealing arrangement. Depending on the pump type and duty, options can include an internal relief or bypass valve to protect against dead heading, and an inline suction strainer to reduce the risk of damage from debris.

Seal selection also matters for demanding services, with configurations such as double mechanical seals used on certain duties where additional containment or reliability is required. We can guide you on what features make sense based on the product, operating conditions, and site requirements.

What information do you need to specify a fuel transfer pump in NZ?

To specify the right fuel transfer pump for a New Zealand site, we typically need the fuel type, required flow rate, temperature, and viscosity, along with suction conditions such as flooded suction or suction lift.

Once we have those details, we can confirm the most suitable pump type and configuration for your application – including options for heavier fuels where viscosity is higher.

Solids Handling Pumps & Stirrers

Reduce clogging and wear

Pumps for tough media

Making light work of extreme viscosity

Overview of our Solids Handling Pumps & Stirrers

Questions? Specs? Talk to one of our Industrial Specialists today.

See other Industrial Pumps

Read Industrial Articles

In the field

They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

This sort of unique system you set up is what sets you apart from others in the Market

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

You guys had our backs from the get-go and stood beside us and persevered.

We called for a different type of solution…... We were pretty happy with what's been delivered

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

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Equipment • Expertise • Results

Solids Handling Pumps & Stirrers

Reduce clogging and wear

Pumps for tough media

Making light work of extreme viscosity

Overview of our Solids Handling Pumps & Stirrers

Questions? Specs? Talk to one of our Industrial Specialists today.

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