A2 Assembly 1-12391 With Adapter To KMT On/off Valve Parts

The A2 Assembly 1-12391 is a complete ultra-high-pressure cutting head assembly used in abrasive Waterjet Cutting Systems. Its main function is to control and direct ultra-high-pressure water and abrasive flow for accurate and efficient cutting of metal, stone, glass, ceramics, composites, and other industrial materials.
This assembly typically includes the cutting head body, nozzle components, mixing chamber, Focusing Tube, abrasive inlet, and related mounting or sealing components required for stable cutting operation. It is engineered to provide reliable abrasive mixing, precise nozzle alignment, and consistent pressure transfer during continuous industrial cutting applications.
A high-quality A2 assembly is essential for maintaining cutting precision, operational stability, and long-term reliability of the waterjet system.

Is A2 Assembly 1-12391 a Wear Part?

Yes — the A2 Assembly 1-12391 is considered a wear assembly.
Although the structural body components are highly durable, internal wear parts such as orifices, focusing tubes, mixing chambers, seals, and valve-related components continuously operate under ultra-high pressure, abrasive wear, friction, and repeated cutting cycles.
Over time, these wear components gradually lose performance, affecting cutting quality, pressure efficiency, and operational stability.
Regular inspection, maintenance, and replacement of wear parts are strongly recommended.