Waterjet cutting is another modern form of sheet metal manufacturing. It has a lot in common with laser or plasma-cutting machines.
A waterjet cutter is a piece of automated equipment that can be programmed similarly to a CNC machine to run a route. Once programmed the cutter itself runs the cutting operation with minimal interaction from an operator. In the case of waterjet cutters, the CNC portion does almost all the work — all we have to do is load the material and set the program.
As the name suggests, a waterjet cutter uses a constant, high-pressure jet of water to cut through sheet metal. You can think of it like a pressure washer on steroids. The cutter has a program that tells it exactly where to go, and a 3-axis gantry controls the path.
On the gantry is the cutting head. The waterjet cutter is attached to the gantry and faces the table underneath. The loaded material stays stationary under the cutter, and only the jet moves in the x, y, and z directions.
The power has so much force that it can cut through metal plates up to 3” inches thick.