What tolerances can we expect from waterjet cutting?

Over 80% of the world's abrasive jet users cut parts to ±0.1 or looser accuracy.

Should I cut underwater?

The biggest advantage of cutting under water is that it will reduce the noise of the cutting process to under 75 dBA.
The down side of cutting underwater is that you can't see the cutting process. You also have to work underwater for material handling,unless you have water level control on your catcher. Cutting performance will decrease for 5% when you cut 1mm under water.

How thick can it cut?

Up to 100mm thick steel and titanium are cut on a production basis.  The vast majority of users, however, cut between 10mm to 60mm thick materials.

At what pressure do I cut?

420 MPa is the maximum intensifier pump pressure. It has been proven that the fastest and most efficient cutting is done at 360MPa ~ 380 MPa.

How thick is the kerf?

The kerf is about 15% larger than the mixing tube diameter. So, for a 1.0mm. mixing tube, the kerf will be 1.2mm. Of course, the kerf will increase as the mixing tube grows.

What taper can I expect?

The taper you get is a function of the cutting speed. However, the worst taper you will get will be equal to the maximum kerf width at the top and at the bottom. As you slow down the taper will be reduced until you get parallel sides. Most tapersyou see on precise cuts are 0.1mm to 0.25mm on a side.

Do you have to pre-drill holes?

The water jet can pierce the starting hole itself. In most materials, no special requirements are necessary. In some composites and brittle materials, lowering the pump pressure and/or using a vacuum assist piercing attachment is required.We will equip two stage pressure-high pressure & low pressure .Low pressure is for drilling and high pressure is for cutting.