Product Name: Hydraulic Cylinder (Part No. 20457414)

Description:
The Hydraulic Cylinder (20457414) is a precision-engineered, low-pressure drive cylinder for the intensifier pump of a high-pressure waterjet cutting system. It converts hydraulic energy from the power unit into linear mechanical motion to drive the high-pressure plunger assembly . Manufactured from high-strength alloy steel, its internal bore features a precision-honed and mirror-polished finish to minimize friction on the piston seals . It is rated for continuous operation up to 60,000 PSI (approximately 4,137 bar). This part is also cross-referenced under numbers C-1000-1 and TL-001012-1 .

Applications:

• Used as the primary drive actuator in the intensifier pump of waterjet cutting systems

• Converts hydraulic oil pressure into reciprocating mechanical force for water compression

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

• Compatible with H2O Jet, KMT (KMT Waterjet Systems), and AccuStream waterjet systems

Features:

• High-Strength Material: Constructed from hardened alloy steel for exceptional durability and fatigue resistance

• Precision-Machined Internal Bore: Features a mirror-polished surface finish critical for seal performance and longevity 

• High-Pressure Tolerance: Engineered to withstand the extreme cyclic pressures of waterjet intensifier operation

• Corrosion-Resistant: Designed to resist degradation from hydraulic fluid and moisture in waterjet environments

• Direct OEM Replacement: Interchangeable with OEM part numbers 100008-1, C-1000-1, and TL-001012-1 

Maintenance:

Hydraulic Oil Quality (Critical):
The quality and cleanliness of the hydraulic oil are critically important. If the oil contains impurities or contaminants, it will lead to severe wear of the cylinder bore and piston seals, resulting in faster intensifier reversing, insufficient cutting pressure, and pressure drop .

Preventive Maintenance Schedule:
It is generally recommended to inspect hydraulic cylinders every 2 years. Worn cylinders, oil seals, and pistons should be replaced promptly .

Common Failure Diagnosis:

• External Leakage: Hydraulic oil weeping from the cylinder head area indicates worn piston rod seals or damaged cylinder head O-rings 

• Slow or Erratic Cycling: If the intensifier cycles more slowly in one direction or exhibits irregular movement, internal piston seal bypass is likely

• Overheating: If the hydraulic cylinder body becomes excessively hot during operation, internal leakage or friction from damaged seals may be occurring

• Pressure Drop: Inability to maintain rated cutting pressure may indicate worn internal seals or a scored cylinder bore

Inspection and Replacement Guidelines:

• Full Depressurization (Critical): Before any maintenance, place the main electrical disconnect in the OFF position, fully depressurize the hydraulic system, and follow lockout/tagout procedures

• External Inspection: Check the cylinder body for cracks, corrosion, or physical damage

• Bore Inspection (Critical): When seals are replaced, inspect the internal bore surface for scoring, pitting, or wear. The internal finish of the hydraulic cylinder is the most important aspect; if the bore becomes rough or scored, replace the cylinder immediately 

• Seal Replacement: When replacing piston seals, always replace all O-rings, backup rings, and rod seals simultaneously

• Proper Lubrication: During reassembly, apply clean hydraulic oil to all seals and components to prevent dry start-up

• Torque Compliance: When reinstalling the cylinder head, tighten all mounting bolts to the specific torque values listed in the equipment service manual using a staggered (cross) tightening pattern

• Oil Cleanliness: Maintain proper hydraulic oil filtration and change oil at manufacturer-recommended intervals to prevent contamination-related wear 

• Replace if Damaged: Replace the hydraulic cylinder immediately if the internal bore shows deep scoring, pitting, or wear beyond specifications, or if the cylinder body is cracked

Cross-Reference Information:

• H2O Jet #20457414

• KMT #100008-1

• C-1000-1

• TL-001012-1