PLUNGER, CERAMIC ,UHP, .875 OD, PRO III, 90K

HJ-72162253

KMT PART NUMBER: 72162253

 

The innovation of HJ Waterjet, Inc.’s 100% ceramic plunger lies in it′s 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.

Brand: C

Ceramic UHP Plunger | .875 OD | 90K | HJ-72162253


The HJ Waterjet Ceramic UHP Plunger (.875 OD) | HJ-72162253 is a precision-engineered replacement component designed for 90,000 PSI (6,200 bar) ultra-high-pressure intensifier pumps. Manufactured from premium high-density technical ceramic, this HJ-72162253 Ceramic UHP Plunger delivers exceptional wear resistance, dimensional accuracy, and surface finish to maximize seal life and maintain consistent pressure throughout demanding cutting operations.

This HJ-72162253 Ceramic UHP Plunger fits compatible PRO-III 90K intensifier pumps utilizing .875-inch plunger assemblies. The part is manufactured to OEM specifications for seamless installation and dependable long-term performance.

Unlike conventional carbide plungers, advanced ceramic construction provides a smoother operating surface, reducing friction against high-pressure seals while minimizing heat generation and wear. The result is improved sealing performance, lower maintenance costs, fewer unplanned shutdowns, and increased pump reliability.

Whether cutting aerospace alloys, hardened steel, titanium, stone, composites, glass, or thick plate materials, this plunger maintains the dimensional stability and surface integrity required for consistent ultra-high-pressure waterjet performance.

 

Key Features

  • Premium full ceramic construction
  • Precision ground for superior surface finish
  • Designed for 90,000 PSI (6,200 bar) waterjet intensifier pumps
  • .875-inch outside diameter
  • Direct replacement for KMT Part #72162253
  • OEM-quality fit, finish, and performance
  • Excellent resistance to wear, abrasion, and corrosion
  • Reduces high-pressure seal wear
  • Extends maintenance intervals
  • Minimizes downtime and operating costs
  • Engineered for continuous industrial operation

 

Benefits

  • Longer service life than conventional plungers
  • Improved seal longevity
  • Stable ultra-high-pressure performance
  • Reduced friction and operating temperatures
  • Lower maintenance expenses
  • Consistent cutting pressure
  • Increased equipment uptime
  • Reliable performance in demanding production environments

 

Applications

Ideal for:

  • Ultra-high-pressure waterjet cutting systems
  • Aerospace manufacturing
  • Automotive production
  • Metal fabrication
  • Stone and granite cutting
  • Glass processing
  • Composite material cutting
  • Industrial manufacturing
  • High-volume production facilities

 

Compatibility

Compatible with:

  • PRO-III 90K Intensifier Pumps
  • .875-inch plunger assemblies
  • 90,000 PSI (6,200 bar) waterjet systems

Replaces OEM Part Number:

  • 72162253

 

Why Choose HJ Waterjet Parts?

HJ Waterjet replacement components are manufactured to meet and exceed OEM dimensional tolerances and performance specifications. Every ceramic plunger is precision machined and inspected to ensure exceptional reliability in the most demanding ultra-high-pressure applications.

Customers choose HJ Waterjet because they receive:

  • OEM-quality performance
  • Precision manufacturing
  • Premium engineering materials
  • Competitive pricing
  • Outstanding durability
  • Reliable interchangeability with OEM components

 

Technical Specifications

Specification

Value

Product

Ceramic UHP Plunger

Outside Diameter

.875 in

Operating Pressure

90,000 PSI (6,200 Bar)

Material

High-Density Technical Ceramic

Pump Type

Ultra-High-Pressure Intensifier

OEM Replacement

KMT 72162253

Application

PRO-III 90K Pumps

Condition

New

** 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.

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