FULL HP CERAMIC PLUNGER, UHP, .875 OD, 60K, 90K

HJ-05119151

KMT PART NUMBER: 05119151

ADDITIONAL REFERENCES: 05039771, 72138164, 05108113, 1-11606, 5000024

 

The innovation of HJ Waterjet, Inc.’s 100% ceramic plunger lies in its all-ceramic composition, which offers a significant advantage over traditional piston plungers with metal shoulders.  The ceramic material provides a smoother operation and greater reliability, which in turn extends the seal life of the pump.  Furthermore, the absence of metal eliminates the risk of component separation caused by varying thermal expansion rates, ensuring a more consistent and maintenance-free performance.

Product Description


The Ceramic Plunger, .875 OD, 60K–90K PSI (HJ-05119151) is a precision-engineered high-pressure and ultra-high-pressure all-ceramic plunger designed to deliver maximum durability, superior sealing performance, and consistent pressure generation in demanding industrial applications.

Manufactured from advanced engineered all- ceramic composition, the HJ-05119151 Ceramic Plunger offers exceptional resistance to abrasion, thermal stress, and high-cycle fatigue, making it ideal for continuous operation in 60,000 to 90,000 PSI (4,100–6,200 bar) KMT-style intensifier waterjet systems.

As a critical moving component within the intensifier pump, the ceramic plunger converts hydraulic energy into ultra-high-pressure water flow, directly impacting cutting power, efficiency, and system reliability.

Key Benefits

  • Extended seal life and reduced maintenance
  • Consistent pressure output for precise cutting
  • Reduced friction and improved efficiency
  • Longer service life vs. metal plungers
  • Reliable operation in 60K–90K PSI systems
  • 100% All-ceramic composition plunger
  • .875 OD for Standard KMT-style Intensifier waterjet systems
  • 60K–90K PSI Rated Performance
  • Superior Wear and Corrosion Resistance
  • Critical for Pump Efficiency and Reliability

Applications

  • CNC waterjet cutting machines
  • Ultra-high-pressure intensifier pumps
  • Industrial cutting (metal, stone, glass, composites cutting)
  • Automotive manufacturing (robotic cutting and trimming)

** HJ WATERJET IS IN NO WAY AFFILIATED WITH GMA, EBBCO, KENNAMETAL, KMT, FLOW, BFT, H2O, OMAX, ACCUSTREAM, HYPERTHERM OR TECHNI. PART NUMBERS ARE FOR CONVENIENCE ONLY.

© 2026 HJ WATERJET. ALL RIGHTS RESERVED.

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