DYNAMIC SEAL ASSEMBLY, UHP, .875 PLUNGER, SL PRO II, C1, 90K

HJ-72147144

KMT PART NUMBER: 72147144

For Select 90,000 PSI/6,000 Bar SL PRO II Units

This Seal Assembly for use on the following Cylinder Only:

HJ-72145384  UHP CYL-1.125-8, SL PRO II 2R,  MED CHMFR, CBD

 

Compatible with the following KMT Style Pumps:

SL PRO II

Seal Assembly, UHP, .875" Plunger | PRO2C1 | 90,000 PSI | HJ-72147144


Engineered for maximum sealing performance under the most demanding operating conditions, the HJ Waterjet UHP Seal Assembly for .875" Plunger PRO2C1 90K is a premium replacement for KMT Part Number 72147144. Designed specifically for 90,000 PSI (6,200 bar) ultra-high-pressure intensifier pumps, this HJ-72147144 seal assembly delivers exceptional reliability, leak prevention, and long service life in the harshest industrial waterjet cutting environments.

Manufactured from precision-engineered, premium wear-resistant materials, this HJ-72147144 high-pressure seal assembly maintains superior sealing integrity while minimizing friction and extending the life of surrounding pump components. Each seal is manufactured to exact OEM specifications, ensuring a direct drop-in replacement with no modifications required. It is designed for select PRO-II C1 intensifier pumps equipped with a .875-inch plunger and UHP cylinder HJ-72145384.

Whether you are performing scheduled maintenance or rebuilding an intensifier, HJ Waterjet provides OEM-quality performance without the excessive OEM price, helping reduce operating costs while maximizing equipment uptime.

 

Premium Features

  • Premium Precision replacement for KMT Part #72147144
  • Designed for 90,000 PSI (6,200 Bar) ultra-high-pressure operation
  • Fits .875" ceramic plunger systems
  • Compatible with PRO2C1 intensifier pumps
  • Manufactured to OEM dimensions and tolerances
  • Superior leak prevention
  • High wear and extrusion resistance
  • Excellent pressure stability
  • Reduced friction for extended component life
  • Fast installation with direct OEM fit
  • Improves pump efficiency
  • Minimizes costly downtime
  • Ideal for continuous industrial production

 

Compatible Equipment

Designed for select:

  • PRO-II C1 Intensifier Pumps
  • .875" Plunger Systems
  • 90K PSI Waterjet Pumps
  • UHP Cylinder 72145384
  • Industrial Waterjet Cutting Systems
  • High Production Waterjet Machines

 

Applications

Ideal for demanding cutting applications including:

  • Aerospace Manufacturing
  • Automotive Production
  • Steel Fabrication
  • Aluminum Processing
  • Titanium Cutting
  • Stone & Granite
  • Glass Processing
  • Ceramic Cutting
  • Composite Materials
  • Defense Manufacturing
  • Industrial Fabrication
  • Precision Waterjet Machining

 

Benefits of Choosing HJ Waterjet

HJ Waterjet replacement parts are manufactured using premium materials and precision machining processes to provide the same fit, function, dimensions, and performance expected from OEM components. Many of our components are produced by world-class manufacturers that supply the waterjet industry, allowing customers to receive exceptional quality without paying inflated OEM prices.

Benefits include:

  • OEM-quality performance
  • Precision engineered
  • Exact dimensional compatibility
  • Outstanding durability
  • Longer maintenance intervals
  • Reduced maintenance costs
  • Increased equipment uptime
  • Lower total cost of ownership
  • Trusted by waterjet service professionals worldwide

 

Technical Specifications

Product: Ultra High-Pressure Seal Assembly

Replacement For: KMT 72147144

Brand: HJ Waterjet

Plunger Diameter: .875" (22.23 mm)

Operating Pressure: 90,000 PSI (6,200 Bar)

Pump Style: PRO2C1 Intensifier

Installation: Direct OEM Replacement

Condition: Brand New

 

Why Replace Your UHP Seal Assembly?

Over time, ultra-high-pressure seals experience wear from continuous cycling and extreme operating pressures. Replacing worn seal assemblies before failure helps:

  • Prevent high-pressure leaks
  • Maintain consistent cutting pressure
  • Improve cut quality
  • Protect expensive cylinders and plungers
  • Reduce unplanned downtime
  • Extend intensifier service life
  • Lower repair costs

Routine seal replacement is one of the most cost-effective ways to maintain maximum waterjet performance.

** 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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