Cylinder | UHP | .875” Plunger | SST | 90K | HJ-72121850
The HJ-72121850 UHP Cylinder, .875 Plunger, SST, 90K is a precision-engineered ultra-high-pressure cylinder designed for KMT waterjet intensifier systems operating at pressures up to 90,000 PSI (6,200 bar). Manufactured to exact specifications, this stainless steel UHP cylinder delivers exceptional durability, precision sealing performance, and maximum reliability in demanding industrial waterjet cutting applications.
Designed specifically for .875-inch plunger configurations, this HJ-72121850 UHP Cylinder ensures optimal pressure containment, extended service life, and consistent cutting performance while minimizing downtime. It is engineered for compatibility with the KMT 20479499 UHP Seal Assembly and directly replaces the obsolete KMT Part #20453688, making it the ideal replacement component during pump rebuilds and preventative maintenance.
Whether cutting steel, aluminum, titanium, composites, stone, glass, or ceramics, using HJ Waterjet replacement parts helps maintain performance, improve reliability, and protect your high-pressure intensifier investment.
Key Features
- Part Number: HJ-72121850
- Replaces Obsolete Part Number: 20453688
- Designed for .875" Plunger intensifier systems
- Rated for 90,000 PSI (6,200 Bar) ultra-high-pressure operation
- Precision-machined stainless-steel construction
- Engineered for maximum sealing efficiency and long service life
- Compatible with KMT UHP Seal Assembly Part #20479499
- Manufactured to exact tolerances for perfect fit and performance
- Ideal for preventive maintenance and complete intensifier rebuilds
Benefits
Using HJ Waterjet cylinders helps maintain peak waterjet performance by reducing seal wear, minimizing pressure loss, improving reliability, and extending the life of your intensifier components. Precision manufacturing ensures proper alignment with plungers and sealing assemblies, helping reduce costly downtime and unexpected failures.
Applications
Suitable for KMT Waterjet intensifier pumps operating at 90,000 PSI using .875-inch plungers, including compatible PRO and SL-series configurations requiring Part #HJ-72121850 and Seal Assembly #HJ-20479499.
Typical industries include:
- Waterjet cutting
- Aerospace manufacturing
- Metal fabrication
- Automotive production
- Stone and granite cutting
- Glass processing
- Composite machining
- Industrial manufacturing
- Precision fabrication
Technical Specifications
- Product: Ultra High-Pressure Cylinder
- Part Number: HJ-72121850
- Replaces: 20453688
- Pressure Rating: 90,000 PSI (6,200 Bar)
- Plunger Size: .875"
- Material: Stainless Steel
- Seal Compatibility: KMT 20479499 UHP Seal Assembly
Why Choose HJ Waterjet Parts?
HJ Waterjet components are engineered specifically to provide superior reliability, exact fitment, and maximum equipment longevity. Choosing HJ Waterjet replacement parts helps preserve cutting accuracy, reduce maintenance costs, and maintain performance in demanding production environments.