A pure waterjet cutting system is a type of technology used for precision cutting of various materials using a high-pressure jet of water. Unlike abrasive waterjet cutting, which involves mixing water with abrasive particles to enhance cutting capabilities, a pure waterjet system uses only water to cut through materials.

The pure waterjet cutting process involves pressurizing water to extremely high levels, typically between 30,000 and 90,000 pounds per square inch (psi). The pressurized water is then directed through a small orifice, creating a focused jet of water that exits at a high velocity. This high-velocity water jet is capable of slicing through materials by eroding them through a process known as hydraulic erosion or hydrocutting.

Pure waterjet cutting is particularly effective for materials that are sensitive to heat, such as plastics, rubber, foam, textiles, and certain types of food products. It provides a cold cutting process, meaning there is minimal heat-affected zone (HAZ) and no thermal distortion of the material being cut. This makes it suitable for applications where preserving material integrity and avoiding thermal damage are crucial.

However, pure waterjet cutting has limitations when it comes to cutting harder materials like metals, ceramics, and composites. For such materials, abrasive waterjet cutting is often preferred, as it combines the use of abrasive particles with water to enhance cutting efficiency.

In summary, a pure waterjet cutting system utilizes high-pressure water to precisely cut through a wide range of materials without the need for abrasive particles. It is ideal for materials that can be cut with water alone and where heat-affected zone and thermal distortion are concerns.

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