Product ID: 05034764 – Hydraulic Cylinder (Intensifier Pump Component)

Description:
This component is a precision-engineered hydraulic cylinder designed for high-pressure waterjet intensifier pumps . It serves as the core power unit that converts hydraulic energy into smooth, controlled linear motion to drive the reciprocating plunger assembly . The cylinder is manufactured from hardened alloy steel with a precision-honed, mirror-polished internal bore to minimize friction and seal wear . This part is designed for 0.88 inch (7/8") plunger blocks and is compatible with intensifier pumps rated at 55,000–60,000 PSI (approximately 3,800–4,137 bar) . The hydraulic cylinder is an OEM replacement part used in SL-IV, SL-V, Classic series, and OEM intensifier assemblies ranging from 15 to 100 horsepower . The complete cylinder weight is approximately 32.9 kg (72.5 lbs) .

Applications:

• Used as the primary hydraulic actuation cylinder within waterjet intensifier pumps to drive the high-pressure plunger 

• Installed in intensifier assemblies, including SL-IV, SL-V, SL-VI, Classic series, and OEM models (15–100 HP) 

• Suitable for ultra-high pressure waterjet systems operating at 55,000–60,000 PSI (approximately 3,800–4,137 bar) 

• Compatible with KMT (KMT Waterjet Systems), FLOW, OMAX, WSI, and other waterjet intensifier systems 

Features:

• Hardened Alloy Steel Construction: Manufactured from high-strength hardened alloy steel with excellent strength, corrosion resistance, and wear protection 

• Precision-Honed Internal Bore: Features a precision-honed, mirror-polished internal bore surface to reduce friction on seals and piston 

• High-Pressure Rating: Designed to withstand extreme pressure cycling at 55,000–60,000 PSI (3,800–4,137 bar) without deformation or fatigue failure 

• Fatigue-Resistant Engineering: Heat treatment process and high-pressure bore mirror finishing to resist metal fatigue under continuous pressure cycling 

• Thread Standards: Precision-machined threads meeting international standards for secure assembly 

• Corrosion Protection: Surface treatment provides resistance to corrosion from hydraulic fluids and waterjet operating environments 

• High Dimensional Accuracy: CNC-machined with three-dimensional precision measurement to ensure proper fit with intensifier components 

• Weight: Approximately 32.9 kg (72.5 lbs) 

Maintenance:

• Hydraulic Oil Cleanliness (Critical): The quality and cleanliness of hydraulic oil is critically important. Contaminated oil with impurities will severely wear the cylinder bore and piston seals, resulting in faster reversing, insufficient pressure, and pressure drop . Use clean, filtered hydraulic oil and change at recommended intervals.

• Regular Inspection: During pump overhaul or preventive maintenance, inspect the internal bore surface regularly for scoring, galling, pitting, or wear caused by seal contact or contaminated oil .

• Bore Condition Check (Critical): The most important aspect of the hydraulic cylinder is the internal finish. If the bore surface becomes rough, scored, or shows signs of wear, replace the cylinder immediately .

• Seal Compatibility: When replacing seals, ensure they are compatible with the cylinder bore finish and pressure rating. The hydraulic cylinder requires specific low-pressure oil seal kits (typically containing multiple seals for oil ports and contact surfaces) to prevent external oil leakage .

• Piston Assembly Inspection: The piston is installed inside the cylinder and moves back and forth. The piston connects to plunger rods via a retaining gland and snap rings. Inspect the piston and its connection points during overhaul .

• Cylinder Head and Tie Rod Check: The cylinder heads are secured at both ends by four tie rods. Inspect tie rod threads and nuts for damage, and ensure proper torque on all fastening hardware .

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

• Proper Handling: The hydraulic cylinder is heavy (32.9 kg / 72.5 lbs). Support its weight during removal and installation to prevent damage to the plunger or injury to personnel .

• Compatibility Check: Before installation, ensure the replacement cylinder matches the specific intensifier model (0.88 inch plunger block, 55,000–60,000 PSI rating, SL-IV/SL-V/Classic series compatibility) .

• Replacement Criteria: Replace the cylinder if the internal bore shows deep scratches, pitting, or wear beyond manufacturer-specified limits; if cracks are detected; if threads are damaged; or if performance degradation (pressure drop, erratic operation) is observed .

• Torque Compliance: When reinstalling, tighten all cylinder head bolts and tie rod nuts to the specific torque values listed in the equipment service manual using a staggered (cross) tightening pattern to ensure even clamp load distribution.

• Cross-Reference Part Numbers: Alternative part numbers include 1-12551, KMT#05034764, and various OEM-equivalent designations . Verify compatibility with your specific intensifier assembly before purchase.