Plunger SP-46-4 Good Price WaterJet Pump Parts For Sale

The Plunger SP-46-4 is a core high-pressure component designed to convert hydraulic energy into ultra-high-pressure water flow in waterjet cutting intensifier systems. It operates as the reciprocating element inside the Cylinder Liner (SP-69-10), creating the intense pressure required for clean, precise, and consistent waterjet cutting performance.

Manufactured from premium-grade hardened stainless steel or ceramic-coated alloy steel, the SP-46-4 plunger offers exceptional strength, surface hardness, and corrosion resistance. Its mirror-polished working surface minimizes friction and seal wear, ensuring smooth motion and long service life under continuous high-pressure operation. The precise surface finish also improves sealing performance when paired with the HP Seal Kit (SP1066) and Guide Bush (SP1107), maintaining efficient pressure transfer and leak-free performance.

The Plunger SP-46-4 is fully compatible with KUNDA, KMT, FLOW, and OMAX waterjet systems, making it suitable for both OEM installation and aftermarket replacement. Each plunger is CNC-ground and dimensionally balanced to ensure optimal alignment and low vibration during high-speed reciprocation. This precision guarantees stable cutting pressure, extended seal life, and superior overall system reliability.

Used across industries such as metal fabrication, stone and tile processing, ceramic cutting, and composite material manufacturing, the SP-46-4 plunger is a proven, long-lasting solution for operators who demand performance, durability, and precision from their waterjet intensifiers.