The HNH Series is part of our modular program

The HNS Series gives you the flexibility needed for custom design to suit your application, saving you both time and money.

The HNH series is available in several metallurgy options and offers three wet-end designs as well as multiple seal options.

Severe and Extreme Duty Power Frames

Cutting-edge sealing options

Patented impeller release mechanism

3 hydraulic designs + 35 different wet-ends

Mobile & Diesel-Driven

Companies Doing It Right!

Pumping mill scale for over 15 years for one of the largest american steel producers

5x HNH pumps have been operating since 2006 with no reported issues at one of the mills from one of the largest US steel producers; the HNH heavy-duty design with its high-chrome casing, wear plate, wear ring, and impeller have been proving every day for over 15 years that it is the right choice for mill scale applications.

Overcoming High Heads And Peak Flows In Underground Diamond Mines for a decade

In an underground diamond mine, 4x HNH are used in two independent systems (inline configuration) for a mine dewatering application. This arrangement allows for double flow in peak periods. The pumps have been running successfully since they were installed in 2005.

Pumping Out Aggressive Slurries In One Of The Largest Copper Mines on the planet

One of the largest copper mines in the world, located in the Democratic Republic of Congo in Africa is using these self-priming, diesel-driven, horizontal, HNH slurry pumps as utility pumps in an application in which low Ph, acidic slurries are being pumped out from sanded sumps and lagoons.


To best fit the hydraulic requirements of your application.


  • Radial Bearing, Deep Groove Ball

    L10 life exceeds 100,000 hr.

  • Thrust Bearing, Angular contact

    L10 life exceeds 100,000 hr.

  • Solid Heavy-Duty Shaft

    Exceptional low shaft stiffness ratio maximizing mechanical seal & bearing life.

  • Shaft Seal - Bearing Protection

    Lip Seal (standard) – Labyrinth Seal (optional)


  • Robust Bearing Housing Design

    With large capacity oil bath.

  • Thrust/Radial Bearings

    to Heavy-Duty Tapper Roller Bearings – L10 life exceeds 100,000 hr

  • Solid Heavy-Duty Shaft

    Exceptional low shaft stiffness ratio maximizing mechanical seal & bearing life.

  • Shaft Seal - Bearing Protection

    Lip Seal (standard) – Labyrinth Seal (optional)

We’ve designed and pre-configured control panels so you can protect and get the most out our pumping solutions

Our HPD Series of direct on line start control panels are designed to ensure optimal use of your pumps which results in reducing the maintenance and total cost of ownership.

Our HPS Series soft start control panels allow for more frequent pump starts by offering a less harsh starting sequence that reduces in-rush currents which is safer and gentler on the motor and creates less heat build-up and reduces the chance of damage due to water hammer and cavitation effect during startup.

Our HPD and HPS Series control panels come pre-configured to provide the peace of mind that comes from knowing it was engineered to the highest safety standards.


  • Maximum Flexibility

    If your pump performance requirements change, simply change the pumping end to ensure you are always achieving maximum productivity and efficiency.

  • Cost Savings

    No need to buy a brand new piece of equipment when system requirements change. Just change the pump end. If you can standardize on the same pumping ends throughout your plant then you can greatly reduce the need for excessive spare parts inventory.

  • Increased Productivity

    Production is profit. When systems change the lead times of some custom drive units can not only be long but also expensive. If you can recycle your drive unit and simply change your pumping end you can get back into production quicker, cheaper, with less downtime required.

S Wet End


  • Special elliptical cut water design

  • High efficiency curved back vanes

  • Up to 60% solids by weight

  • Available in High Chrome, CD4, Alloy 20, & more

E Wet End


  • Patented axial spiral casing

  • No front wear plate needed

  • Available in ductile iron, High Chrome, CD4, Alloy 20, & more

  • Up to 40% solids by weight

  • Low shear

B Wet End


  • High head

  • Up to 70% solids by weight

  • Available in High Chrome, CD4, Alloy 20, & more


The HNH comes standard with a packed box or your choice of a standard component mechanical seal or from a variety of our specially engineered slurry cartridge seal options.


4 expellers/repellers that are capable of higher sealing pressure than typical single expeller/repeller design; featuring a packing-less design and an integrated flush port.


Extreme slurry cartridge seal design available with positive pressure quench plans.


Severe slurry cartridge design with robust stationary single spring with higher tolerance for misalignment and shaft deflection.

we offer a range of services designed to help you get the most value from your pumping solutions

One of our key services is startup and installation. We understand that installing a new pump can be a complex process, which is why our experienced team of engineers is available to provide on-site installation services.

We work closely with you to ensure that our pumping solutions are properly installed and integrated into your facilities, from the very start. This helps to minimize downtime and ensures that your production is running smoothly and efficiently.

We understand that our clients need more than just quality products; they need reliable support to ensure that their facilities operate at peak efficiency.

HNH Turnkey Solutions

We have the ability to engineer, procure, and construct turnkey solutions that can be integrated within your system.

Selection of appropriate motor starters and drives for optimal compatibility

(Soft Starters, VFDs, and PLC control)

Flow control and monitoring specifically for slurry pumps

(control valves, flow meters)

Piping, and complete seal plans

(API Seal Plans)

We have several repair and service facilities and a network of authorized repair locations across Canada, the USA, and Latin America

Malfunctioning pumps can cause significant downtime and lost productivity, which is why we strive to provide fast and reliable repair services to get your equipment back up and running as soon as possible. We use our large test tank to troubleshoot and test every pump we repair before it leaves our facility, ensuring that it operates at peak performance.

Our team is standing by to have your pump repaired as quickly as possible. That’s why we solely focus on repairing pumps so we can have them back up and running in the smallest time possible.

We use our large test tank to troubleshoot and test every pump we repair before it leaves our facility, ensuring that it operates at peak performance.


Capable of transporting class 4 slurries and built to your specifications!

Hevvy/Toyo Pumps’ Mobile Diesel-Driven Slurry System is the industry’s only engine and slurry pump in one contained compact portable unit designed in-house, in North America, and engineered for the most rugged applications.


Trailer Key Features

  • Structural steel frame

  • Integral tubular design

  • Lockable fuel tank and control panel

  • Pressure-tested fuel cells

  • Torsional flex axles

  • Liquid cooled diesel engine

  • Available package option


Fully Automatic Priming And Repriming

  • Rapidly primes and re-primes completely unattended

  • Patented EuroDyne and Double Mechanical Run-Dry seal options

  • Does not impede solids handling of pump

  • No change in suction lift capacity and flow rates

  • Check valve eliminates any liquid carry over

  • Environmentally safe priming system designed to prevent product leakage


We are dedicated to providing the best pumping solutions for all of your needs. Connect with one of our pumping specialists who can assist you in selecting the right slurry pump for your application. Our pumps are built with durability in mind, designed to withstand harsh environments, and provide the highest efficiency day after day. So, whether you need a submersible, vertical, or horizontal slurry pump, we’ve got you covered.

Don’t let a pumping issue disrupt your operations; if you have an immediate pumping need or require repair services, we at Hevvy/Toyo Pumps are here to help. We will work with you to assess your needs and provide the best solutions to meet them.

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