Cylinder Liner SP4-69-19 WaterJet Pump Parts Supplier

The Cylinder Liner SP4-69-19 is a precision-engineered high-pressure sleeve designed for industrial waterjet intensifiers and ultra-high-pressure pump systems. Serving as the critical pressure chamber for the Plunger (SP-46-6), this liner ensures smooth reciprocating motion, stable pressure generation, and leak-free performance under continuous ultra-high-pressure operation.

Manufactured from hardened stainless steel or high-tensile alloy steel, the SP4-69-19 cylinder liner provides exceptional strength, corrosion resistance, and dimensional accuracy. Its mirror-polished inner bore reduces friction and minimizes wear on high-pressure seals, ensuring optimal compatibility with the HP Seal Kit (SP1066) and Guide Bush (SP1107). The result is improved sealing efficiency, extended component lifespan, and lower maintenance frequency in demanding production environments.

Each SP4-69-19 liner is CNC-machined to micron-level tolerances and undergoes heat treatment and precision grinding, ensuring a perfect fit within the Cylinder Body (SP-49-15) and Sealing Head (SP-71-9) assemblies. This precision guarantees consistent hydraulic-to-water pressure conversion and smooth operation at working pressures up to 4000 bar (58,000 psi).

The Cylinder Liner SP4-69-19 is fully compatible with KUNDA, KMT, FLOW, and OMAX waterjet systems, offering both OEM-equivalent and aftermarket replacement reliability. It is widely used in metal cutting, stone fabrication, ceramic tile production, and composite material machining where stability, accuracy, and durability are essential.