Product ID: 05132253 – Hydraulic Piston Assembly (Intensifier Pump Component)

Description:
This component is a hydraulic piston assembly, also known as a hydraulic piston or complete piston unit, designed for high-pressure waterjet intensifier pumps . It is a precision-engineered, complete drive assembly that converts hydraulic power into mechanical force to drive the high-pressure plunger, ultimately generating ultra-high-pressure water for precision cutting . This assembly is designed for use with intensifier pumps utilizing a .875 inch (7/8") plunger block and is rated for operation at 60,000 PSI (approximately 4,137 bar) .

The assembly includes the hydraulic piston body, retaining rings, bearings, O-rings, backup rings, seal assembly, and check valves as an integrated unit . Alternative or cross-reference part numbers include 1-12562  and WK000242 . This component is used on SL-IV, SL-V, Classic, and OEM intensifier units with horsepower ratings ranging from 15 to 60 HP .

Applications:

• Used in waterjet intensifier pumps as the primary hydraulic drive piston that converts hydraulic fluid pressure into linear reciprocating motion .

• Installed within the hydraulic cylinder body, connected to the high-pressure plunger assembly to drive water compression.

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI (approximately 4,137 bar) .

• Compatible with SL-IV, SL-V, Classic, and OEM intensifier assemblies (15–60 HP) .

Features:

• Complete assembly includes piston body, retaining rings, bearings, seals, and check valves for drop-in replacement .

• Manufactured from hardened alloy steel providing superior strength, corrosion resistance, and dimensional accuracy .

• CNC-machined and dynamically balanced to ensure proper fitment within the intensifier assembly .

• Includes high-performance sealing materials and guide components to ensure leak-free operation and smooth reciprocating motion .

• Designed to withstand continuous pressure cycling at ultra-high pressure without deformation or fatigue failure.

• Ensures stable flow and pressure output across all waterjet cutting applications .

Maintenance:

• Complete Assembly Replacement: This component is designed as a complete, integrated assembly. When internal seals or components wear, replace the entire assembly rather than attempting to rebuild individual components .

• Inspection: During pump overhaul, inspect the piston assembly for signs of hydraulic oil leakage, seal extrusion, wear, or damage. Replace if any leakage or performance degradation is detected.

• Compatibility Verification: Before installation, verify the assembly is compatible with the specific intensifier model (SL-IV, SL-V, Classic, OEM), horsepower rating (15–60 HP), and plunger size (.875 inch) .

• Full Depressurization: Always fully depressurize both the hydraulic system and the high-pressure water system before removing or servicing the piston assembly. Follow lockout/tagout procedures.

• Torque Compliance: When reinstalling, tighten all retaining components to the torque values specified in the equipment service manual to ensure proper seating and prevent leaks.

• Installation Note: This assembly requires proper alignment with the hydraulic cylinder bore and high-pressure plunger connection. Ensure correct orientation during installation.

• Kit Note: This component is also included as part of larger intensifier rebuild kits (e.g., complete intensifier assembly 80072333) .