50 100-412-182 REV. 06
5.4.4 Air Cylinder Consumption
Cubic Feet of air per Minute (CFM) per inch of stroke length (each direction) for a 40 mm
bore cylinder.
Use the table above to calculate the air used by the air cylinder.
Add 0.034 cubic feet per second (2CFM) to account for converter cooling air (continuous
cooling) per cycle.
Example:
400 mm bore Micro Actuator running at full pressure (80 psi) and stroke length (1.75”) at a cycle
rate of 20 parts per minute = 0.0066 CFM per inch of stroke (from table) 3.5” (total stroke is
1.75” down and 1.75” back) equals 0.023 CFM per stroke
Cycle rate is 20 parts per minute, so: 0.023 CFM by 20 (parts per minute) = 0.462 CFM
Add 2 CFM to account for converter cooling air (continuous cooling) for a total of 2.5 CFM.
The example above is to be considered a worst case condition for a Micro Actuator to run
at.
5.4.5 Factory Air
The factory compressed air supply must be “clean (to a 5 micron level), dry and
unlubricated” air with a regulated maximum pressure of 80 psig (552 kPa). Depending on
your applications, the actuator requires between 35 to 80 psi. The 2000X Micro Actuator
and Interface Box require a customer-provided air filter which protects from particulate
matter of 5 microns or larger. Follow the air filter manufacturer’s recommendations for
installing and maintaining your air filter. A quick-disconnect fitting is suggested. Use a
lock - out device on the air line if required.
5.4.5.1 Pneumatic Tubing and Connectors
Actuator assemblies are not externally plumbed from the factory, but provide conventional
1/4 - inch OD pneumatic tubing connection at the air inlet.
If making connections for an actuator, or if re - plumbing your system for a new air filter
location, you must use 1/4 - inch OD tubing and connectors rated above 80 psi (use
Parker “Parflex” 1/4 OD x 0.040 wall, type 1, grade E5, or equivalent), and appropriate
connectors.
Table 5.6 Air Cylinder Consumption
Air
Pressure
CFM
10 0.00174
20 0.00243
30 0.00312
40 0.00381
50 0.00450
60 0.00513
70 0.00590
80 0.00660
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