Sludge & Slurry Submersible Pumps

Your pit dewatering could do better.

Sludge and slurry submersible pumps are specialised pumps built to withstand highly abrasive fluids. They are constructed from hard metals and abrasion-resistant linings, with added features to prevent obstruction, overheating, and excessive wear.

These pumps are ideal for moving thick, solid-laden liquids such as wastewater and sludge from ponds, tanks, or treatment facilities. Whether you're managing water transfer on a construction site, cleaning out a sediment-filled pond, or handling industrial wastewater, submersible sludge pumps offer a reliable and portable solution.

Avalible for both hire and sale across New Zealand, these pumps are commonly used for dewatering, desludging, and transferring heavy liquids where durability and efficiency are critical.

SYSTEM DESIGN

Identify your performance drains

You know your quarry. We know our products. Together, we can identify performance drains and problem products that are hindering maximum productivity.
At Prime Fluid Management, productivity assessments are a first step in our solutions pathway.

NEW TECHNOLOGY

Working smarter

At Prime Fluid management we are look for technological advances in our products – design, engineering and connectivity features that will help you to:

Optimise resource
Minimise handling and movement
Improve operational safety
Meet discharge and environmental obligations
Reduce extraction costs

Overview of our Sludge & Slurry Submersible Pumps | NZ

Grindex Sludge Pumps

The Solid, Salvador, Senior and Sandy models, designed for continuous, unattended operation where reliability is critical and solids content is high.

Size: 50mm – 100mm (2” – 4”)
Max flow: 24L/s
Max head: 38mwc
Max solids: 80mm

Grindex Slurry Pumps

Constructed for maximum wear-resistance, the Grindex Bravo range handles highly abrasive liquids with a pH tolerance of 5.5 – 14. Agitators are built-in in some models.

Size: 100mm – 150mm (4” – 6”)
Max flow: 130L/s
Max head: 45mwc
Max solids: 40 mm

Proril Sand & Slurry Pumps

A rugged and cost-effective solution the Proril Stormy series feature high chrome impellers, agitators and wear plates to withstand tough slurry transportation.

Size: 75mm – 200mm (3” – 8”)
Max flow: 110L/s
Max head: 30mwc
Max solids: 40mm

Heavy-duty Electric Dredge Pumps Move large volumes of abrasive materials without clogging or excessive wear. Available with advanced control panels for remote monitoring.

Size: 75mm – 300mm (3”-12”)
Max flow: 50,000 L/min
Max head: 120m
Solids: 120mm

Hydraulic Dredge Pumps

Suited to high head and heavy dewatering, dam or pond cleaning, extraction and coastal protection.
Significant economy over traditional methods.

Size: 100mm – 350mm (4”-14”)
Max flow: 66,700 L/min
Max head: 68m
Solids: 120mm

Grindex Stainless Sludge Submersibles VHandling pH 2 -10, and solids up to 10mm, Grindex INOX stainless steel submersibles handle corrosive dewatering environments.
Constructed from AISI 316 stainless steel.

Size: 2” – 6”
Max flow: 130L/s
Max head: 200m
Solids: 80mm

Proril Stainless Submersibles The Proril X-Smart and X-Vox ranges feature corrosion-resistant impellers with large free passage.
Contact areas are constructed from 304 or 316 stainless steel.

Size: 2” (50mm)
Max flow: 43m3/h
Max head: 18mwc
Solids: 40mm

View Brochure

GALLERY

In the field

Here are some examples of our solutions being used.

Talk to us today

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

Priscilla EllmersWastewater Supervisor

Let’s sort your fluid management needs
Speak to an expert

Ricardo Holt
Sales Team Leader

Phone

Gerhard Rudolph
Hire Account Management

Phone

Duncan Moore
Sales Engineer

Phone

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.

What is the difference between a slurry pump and a sludge pump?

A slurry pump is designed to move mixtures of liquid and solid particles where the liquid component helps the material flow. It is built with abrasion and corrosion resistant materials and a robust design to handle the wear from suspended solids.

A sludge pump is designed to handle much thicker and stickier material known as sludge which has a higher solid content. These pumps often use positive displacement or slow moving mechanisms to avoid clogging and manage dense viscous fluids.

How do sludge pumps work?

Sludge pumps move heavy viscous mixtures using either centrifugal or positive displacement methods. Centrifugal sludge pumps use a rotating impeller to generate pressure and move the sludge. Positive displacement sludge pumps, such as progressive cavity, diaphragm, or lobe pumps, trap a fixed volume of sludge and force it through the pump. This method is especially useful for very thick or high-solid-content applications.

What is the main source of sludge?

Sludge typically comes from wastewater treatment processes where water is separated from solids through sedimentation or filtration. It is a semi-solid byproduct that can contain organic matter, heavy metals, and other impurities. Sludge can also come from industrial operations such as mining or manufacturing plants, where process residues and waste streams generate similar thick, viscous materials.

Agri Pumps

Stormwater

Industrial

Discharge Compliance

Sludge & Slurry Submersible Pumps

Your pit dewatering could do better.

Identify your performance drains

Working smarter

Overview of our Sludge & Slurry Submersible Pumps | NZ

View our sludge and slurry pump range

In the field

Read Sludge & Slurry Articles

See other Sludge & Slurry Pumps

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

Make an enquiry

Let’s sort your fluid management needs
Speak to an expert

FAQ

Find your local expert

Solutions

Resources

Company

Locations

Contact Us

Find us on

Sign up to news

Equipment • Expertise • Results

Agri Pumps

Stormwater

Industrial

Discharge Compliance

Sludge & Slurry Submersible Pumps

Your pit dewatering could do better.

Identify your performance drains

Working smarter

Overview of our Sludge & Slurry Submersible Pumps | NZ

View our sludge and slurry pump range

In the field

Read Sludge & Slurry Articles

See other Sludge & Slurry Pumps