AccuStream DiaLine Cutting head Manual - Page 16

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AccuStream Cutting Systems
Waterjet/Abrasivejet Stream
The appearance of the waterjet stream will help show the condition of the nozzle and orifice. This will
have an effect on the quality of the cuts. A good water only stream looks like a "stretched fishing line"
along the first inch of its length.
Good Abrasivejet Stream

Optimal Cutting Parameters

Orifice size
The most commonly used orifice sizes for water only are .005" and .006". The most common orifice
sizes for abrasive are .010 and .014. As a rule, the starting nozzle to orifice ratio should be 3 to 1.
Example: A .010" orifice should have a .030" ID nozzle. The following table gives the most commonly
used nozzle combinations with their abrasive usage.
Nozzle and orifice combinations
Orifice
.007
.009
.010
.013
.014
.015
Typical combinations by pump size
Horsepower
30
30
50
50
75
75
100
100
150
150
13084 ON/OFF VALVE & CUTTING HEAD MANUAL
Nozzle
Abrasive
(pounds/min)
.020
.25
.030
.4 - .6
.030
.5 - .75
.040
1.0 – 1.25
.040
1.1 – 1.35
.040
1.25 – 1.5
Qty Heads
1
2
1
2
2
3
2
4
3
6
Good Waterjet Stream
Abrasive Mesh
120 – 220
80 – 120
80 – 120
60 – 80
60 – 80
60 - 80
Orifice/Nozzle
.010/.030
.006 water
.014/.040
.010/.030
.013/.040
.010/.030
.014/.040
.010/.030
.014/.040
.010/.030
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