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High pressure pumps

Performance in the extreme with KREBS® high-pressure pumps

High-pressure slurry pumping applications exert extreme forces on pumps that only the hardiest can survive. Our KREBS millMAX™, slurryMAX™-HP, and UMD™ high-pressure pumps don’t just survive, but thrive, in these conditions, delivering high pumping efficiency over the life of the pump.

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Key benefits of our high-pressure pumps

  • Safely handle the highest of operating pressures

    Our millMAX and UMD high-pressure pumps feature the same internal hydraulic design as standard-pressure pumps but allow for higher operating pressures.

  • Safely maintain hydraulic performance at constant RPM

    Full-face adjustment is nearly impossible in high-pressure applications. Our proprietary wear ring solves this. Easily adjusted by a single operator with a standard wrench, it allows control of suction-side clearance, maintaining hydraulic performance over the life of the pump at constant RPM. This results in higher efficiencies and extended component wear life.

  • Optimise maintenance schedules

    The tie-bolt design of millMAX and UMD high-pressure pumps allows operators to take ultrasonic casing thickness measurements around the pump, helping predict and schedule maintenance shutdowns before failures occur. Meanwhile, slurryMAX-HP pumps feature a split-case design that facilitates maintenance access to internal parts.

Our high-pressure pumps

millMAX-HH/XHH high-head pumps

Our millMAX-HH/XHH product range is designed for high total dynamic head. Suitable for filter press feed and one- or two-stage pumping systems with high heads, millMAX-HH pumps feature a concentric casing, enabling them to operate at even velocity and pressure around the casing, regardless of where the pump is to its BEP.

  • Long wear life.
  • Low power consumption.
  • Reduced cost-per-ton pumped.   

Our high-pressure pumps

Quickly and easily change out the v-belts in minutes without realigning the pulleys.   

Cut wear parts replacement time by 50% or more while also increasing safety.   

Monitor and optimise pump operations with real-time data and instant alerts.   

Maintenance & service of our high-pressure pumps

We provide comprehensive lifecycle support services for your KREBS slurry pumps. Our global network of service and spare parts centres ensures prompt access to parts and consumables, as well as offsite rebuilds through our pump rebuild exchange program. Our onsite service engineers monitor pump performance, offering recommendations for upgrades or adjustments to operating practices to maintain optimal efficiency as process conditions evolve over time. Additionally, we offer operation and maintenance training, including guidance on adjusting the wear ring.

Learn more about FLS service centres

Downloads for high pressure pumps

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Frequently asked questions

FAQs for high pressure pumps

High-pressure pumps play a crucial role transporting slurry between stages in mineral processing operations, e.g., taking slurry from the mill to the flotation plant, feeding slurry to hydrocyclones, and transporting thickened slurry to dewatering equipment. 

Our high-pressure slurry pumps are available with a wide range of lining material options, including multiple elastomers, alloy, and polyurethane combinations. Thick elastomer linings are reinforced to prevent deflection. All lining materials are interchangeable within common housings. 

Choosing between lining options depends on the slurry characteristics and operating conditions. Rubber liners work well for fine particles. Metal liners are better against coarser slurries. Urethane is a stepping stone between rubber and metal, combining the characteristics of an elastomer with the tip speed limit of a high-chrome alloy.  

The difference between tie-bolt and split-case pumps lies in the design of their casings. Tie-bolt casings are held together by external bolts running through the entire assembly, creating a robust and compact structure able to handle higher-pressure operations. Split-case pumps feature a casing split either axially or radially, allowing for quick and easy inspection and servicing or internal parts.