The high-pressure spray cleaning machine, through the collaborative action of the ultra-high-pressure plunger pump unit (working pressure 35 - 50MPa) and the multi-directional rotating spray mechanism, can efficiently remove the cutting fluid, rust-proof oil, and metal debris remaining on precision metal components such as engine blocks and transmission casings during the machining process. This equipment integrates a three-stage filtration device (including a magnetic separator, a vortex sedimentation tank, and a precision bag filter) into the circulating water treatment system, achieving a water resource reuse rate of over 85%. Coupled with a constant temperature heating module (adjustable from 40 - 60°C) and an environmentally friendly cleaning agent, while ensuring the cleaning cleanliness (surface residue ≤ 0.1mg/cm²), the water consumption per workpiece is reduced by 62% compared to traditional cleaning processes, and the comprehensive operating cost is saved by over 35%, meeting the energy conservation and emission reduction requirements of the modern green manufacturing system.