SEPPE Waterjet abrasives

SEPPE Waterjet abrasives

  As you might expect, the type of abrasive is important. The overwhelming choice for most waterjets is garnet abrasive. Garnet is a gemstone that has been known and used by humans for many thousands of years. Now the most popular garnet abrasive among our clients is alluvial river garnet, color is pink . Garnet is fairly hard and when it fractures, it forms sharp edges. Both of these qualities are advantages in waterjet machining. Garnet is also relatively chemically inert, and won’t react with materials being cut, making its disposal simpler as well.

   If you want maximum cutting speed, then you can choose a coarser abrasive, such as 60 mesh or 80 mesh. If you want smoother surface finish, then choose a finer abrasive such as 100, 120, or 150 mesh. Consult the manufacturer of your nozzle for recommendations. The 80 mesh abrasive is very popular, and in high demand. Therefore, it is also the most expensive. If you go with a coarser or finer abrasive, then you can save some money. The trade-off is that you may not cut as well.