Branson 2000X - Page 301

2000X energy Power Supply Appendix D Automation
Instruction Manual FAQ: 2000 SERIES AUTOMATION
011-003-991 EN D-5
A. 2000 Series products use identical air cylinder sizes as prior models, therefore the air consumption tables
from prior series documentation will still apply.
Table D.1 Air Consumption
Cubic Feet of air per Minute per inch of stroke length (each direction)
Use the above table to calculate the air used by the air cylinder.
Add 0.034 Cubic foot per Second of actual weld time to account for converter cooling air per weld cycle. (2
CFM)
For example:
3.0 inch aed actuator running at full pressure (100psi) and stroke length (4inches) at a cycle rate of 20 parts
per minute = 0.0319 CFM per inch of stroke(from above table) X 8 inches (total stroke is 4 inches down and
4 inches back) equals 0.2552 CFM per stroke. Weld time is 1 second so: 0.034 X 1 equals 0.034 CFM for
cooling.
Adding 0.2552 CFM for the cylinder and 0.034 CFM for cooling equals 0.2892 CFM per cycle. Multiply for
parts per minute (20) and you get a total of 5.784 CFM.
This would very likely be a worst-case condition any welder could run at.
However we have a slightly different condition for an 2000f/aef welding system. Because the pneumatics
are used as differential mode of operation, we would suggest to always use the 100 psi values from the
above table to be on the conservative side for sizing airflow, rather than on the actual force values. Still add
the same converter cooling values (0.034) as in the prior example.
Cylinde
r Size
Air Pressure (PSI)
10 20 30 40 50 60 70 80 90 100
1.5
0.001
74
0.002
43
0.003
12
0.003
81
0.004
50
0.005
13
0.005
90
0.006
60
0.007
30
0.008
00
2
0.003
17
0.004
37
0.005
57
0.006
77
0.008
00
0.009
30
0.010
40
0.011
70
0.013
00
0.014
20
2.5
0.004
90
0.006
80
0.008
70
0.010
60
0.012
50
0.014
40
0.016
30
0.018
30
0.020
40
0.022
30
3
0.006
80
0.009
60
0.012
40
0.015
20
0.018
00
0.020
80
0.023
50
0.026
70
0.029
10
0.031
90