®

Nozzle SizeNozzle orifices are shaped to be either round or rectangular. The nozzle widths vary in size from.005 inches up to .032. The size of the nozzle determines the area that will be impacted by thepowder. The larger the nozzle, the greater the area.

The shape of the nozzle is important for getting into unusually shaped spaces. A rectangularnozzle can lightly cover a large width or, when turned, heavily impact a narrow space.

Type of Powder & Nozzle Distance to SurfacePerhaps the most important variable in the machining process is the type of powder you chooseto work with. Airbrasive® Powders are blended from a variety of materials including aluminumoxide, glass beads, crushed glass, sodium bicarbonate and silicon carbide. We will recommendthe best powder to suit your needs.

Powder vs. Cutting Speed

Relationship of Powder Type to Material RemovedMaterial: Glass

Abrasive Flow Grams/Minute

Mill

igra

ms

of M

ater

ial R

emov

ed p

er M

inut

e

40

32

24

16

8

2 4 6 8 10 12 14 16 18 200

40

32

24

16

8

Nozzle Tip Distance

Relationship of Nozzle Tip Distance to Material RemovedMaterial: Glass Cutting Time: 30 seconds Abrasive Powder: Blend #1 27 Micron ALOX

Nozzle Distance of Tip to Material in Inches

Mat

eria

l Rem

oved

in M

illig

ram

s

30

1/32 5/32 3/16 9/32 13/32 19/321/2 25/32

20

10

Typical Cutting Action of0.018” Diameter Nozzle.

inches (millimeters)

Nozzle TipDistance

(NTD)Diameter

of Cut

0.31”(0.79)

0.197”(5.00)

0.394”(10.00)

0.590”(15.00)

.018”(0.48)

.025”(0.64)

.059”(1.50)

.079”(2.01)

Aluminum Oxides:

Powder #3 50 MicronsPowder #1 27 MicronsPowder #5 10 Microns