46 1019572 REV. 03
4.4.4 Air Cylinder Consumption
Use the table above to calculate the air used by the air cylinder.
Add 0.034 cubic foot per second (2CFM) of actual weld time to account for converter
cooling air per weld cycle.
Example:
3.0" 2000X aed actuator running at full pressure (100psi) and stroke length (4") at a cycle
rate of 20 parts per minute = 0.0319 CFM per inch of stroke (from table) x 8" (total stroke
is 4" down and 4" back) equals 0.2552 CFM per stroke.
Weld time is 1 second so: 0.034 x 1 = 0.034 CFM for cooling.
Add 0.2552 CFM for cylinder to 0.034 CFM for cooling equals 0.2892 CFM per cycle.
Multiply by 20 (parts per minute) for a total of 5.784 CFM.
The example
above is to be considered a worst case condition for a welder to run at.
The 2000X aed welding system is unique since it’s pneumatics are used in a differential
mode of operation. For this reason, use the 100psi values from the above table to be on
the conservative side for sizing airflow, rather than on the actual force values. Be sure to
add the converter cooling value, 0.034.
Table 4.5 Cubic Feet of air per minute per inch of stroke length (each direction)
Air Pressure
Cylinder Size
1.5" 2" 2.5" 3"
10 0.00174 0.00317 0.00490 0.00680
20 0.00243 0.00437 0.00680 0.00960
30 0.00312 0.00557 0.00870 0.01240
40 0.00381 0.00677 0.01060 0.01520
50 0.00450 0.00800 0.01250 0.01800
60 0.00513 0.00930 0.01440 0.02080
70 0.00590 0.01040 0.01630 0.02350
80 0.00660 0.01170 0.01830 0.02670
90 0.00730 0.01300 0.02040 0.02910
100 0.00800 0.01420 0.02230 0.03190
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