High Pressure Cleaning Machine is a machine that uses a power device to make a high-pressure plunger pump produce high-pressure water to wash the surface of an object. It can peel off and wash away the dirt to achieve the purpose of cleaning the surface of the object. Because it uses high-pressure water jets to clean up dirt, high-pressure cleaning is also recognized as one of the most scientific, economic, and environmentally friendly cleaning methods in the world.

According to the purpose, there are three major categories: household, commercial and industrial. First, household high-pressure cleaners generally have relatively low pressure, flow, and lifespan (generally within 100 hours). They are portable, flexible, and simple to operate. Second, commercial high-pressure cleaners have higher requirements for parameters and are used frequently and for a long time, so they generally have a longer life. Third, in addition to general requirements, industrial high-pressure cleaners often have some special requirements. Waterjet cutting is a good example.

According to the driving engine, there are three categories: Electric Pressure Washer, Gasoline Engine Driven Pressure Washer, and Diesel Driven Washer. As the name suggests, these three washing machines are equipped with high-pressure pumps. The difference is that they are respectively connected with electric motors, gasoline engines, or diesel engines to drive high-pressure pumps. The advantage of gasoline-driven high-pressure cleaners and diesel-driven cleaners is that they can be operated in the field without a power source.