8
AIR SYSTEMS
- Continued
Calculating Compressor Size
Use the air consumption chart in the tool
schematic for each tool when calculating
the operating requirements for the tools.
Paslode tools are designed to operate
efficiently between 80 and 120 psi and
than 120 psi.
The air consumption chart will help you find
the correct compressor size for your appli-
cation that will quickly replenish tool air
pressure.
To use the chart you will need to know how
many tools will be used and approximately
how many fasteners will be driven each
minute by each tool on the line.
Number of tools X average fasteners/minute/
tool X 1.2 (safety factor) X air consumption
(scfm) @ pressure* (psi) = scfm required.
We can use the following example:
10 tools X 30 fasteners/minute/tool X 1.2 X
0.051scfm* (@100psi) = 18.36 scfm.
*This number is found in the Air Consumption
Chart
In this example, using the air consumption
chart we find that a compressor providing
at least 19 scfm of air is required. Because
in compressors approximately 1 hp is re-
quired produce 4 scfm, a compressor of at
least 5 hp is required.
Calculated Required Piping
For example, given a 20 hp electric compressor
supplying approximately 80 cfm of air at 120 psi
and a main supply pipe length of 350 feet, we see
by the table the minimum main pipe inside diam-
eter required for this application is 1-1/4 inch.
Pneumatic System Maintenance
- Be certain that:
•
Pneumatic fittings are tight and do not leak.
and ensure that automatic draining systems are
operating correctly.
• Air lines are cleared to prevent freezing,
especially in winter.
• Lubricator operation is checked regularly and
ensure it has an adequate supply of lubricant.
(Part No. 403720)
• Only regulated air is being used and that each
regulator is operating properly.
Using the equation:
®
VOLUME
OF AIR
(CFM)
LENGTH OF RUN (FT.)
NOMINAL PIPE DIAMETER (IN.)
50-200 290-500 500-1000 1000-2500 2500-5000
30-60
60-100
100-200
200-500
500-1000
1 1 1¼ 1½ 1½
1 1¼ 1¼ 2 2
1¼ 1½ 2 2¼ 2½
2 2½ 3 3½ 3½
2½ 3 3½ 4 4½
should never be operated at pressure greater
60 70 80 90 100 110 120
AIR CONSUMPTION-SCFM/
FASTENER
.060
.055
.050
.040
.035
AIR PRESSURE-PSIG
.030
REFER
TO CHAR
T
IN T
OOL
SCHEMA
TIC
