Yes, copper can be cut using a water jet cutting machine. Copper is a relatively soft metal among metal materials, so it is relatively easy to cut with water cutting. When cutting copper with a water jet, an abrasive material is typically added to the water to increase the cutting power. The abrasive material is usually a type of grit, such as garnet or aluminum oxide, that is mixed with the water and forced through a small nozzle at high pressure. The abrasive particles help to erode the copper, allowing the water jet to cut through it.The cutting speed of copper metal with water cutting machine depends on the thickness of the copper metal to be cut, the thinner the thickness, the faster the cutting speed. Thicker copper may require higher pressure and more abrasive material to achieve a clean cut, while thinner copper may be easier to cut.It is important to note that cutting copper with a water jet can create a lot of dust and debris, which can be a safety hazard if proper precautions are not taken. The metal surface of the cut copper may not be very smooth, and secondary manual processing and other processes are required, which increases labor costs. Consulting with a professional or the manufacturer of the water jet cutting machine can help ensure the safety and effectiveness of cutting copper or any other material