Page 10 - Gast Rocking Piston Compressors and Vacuum Pumps

55R Series to
Miniature Rocking Piston 0.25

CFM

Brushless DC Motor Recommended Accessories
30 psi max. pressure continuous Repair kit part #K531
(45 psi intermittent) Vacuum gauge AA640
24 inHg max. vacuum Vacuum relief valve AA204
0.25 CFM open flow (each head) Pressure gauge AA644B
Pressure relief valve AA203
PSC Motor Filter/muffler pressure VG2016
30 psi max. pressure continuous Filter/muffler vacuum AA922H
(45 psi intermittent)
24 inHg max. vacuum
0.20 CFM open flow (each head)

Product Dimensions
(inches, mm) PRESSURE 1.95 PRESSURE 1.95
HEAD 49 HEAD 49
.95 .95
24 24
AC MODELS DC MODELS

.44 .44
5.20 VACUUM 11 1.44 VACUUM 11 1.44
132 4.82 HEAD 37 4.82 HEAD 37
4.02 122 4.02 122
102 102
3.81 3.81
97 97
3.07 3.07
78 78
2.07 2.07
53 53
0.09 2.63 3.00 3.33 0.09 2.63 3.00 3.64
2.3 67 76 7.35 85 2.3 67 1/8 NPT (4) 76 7.02 92
Ø .28 1/8 NPT (4) 187 Ø .28 178
7.0 THRU (4) 7.0 THRU (4)
Product Specifications • Pressure/vacuum simultaneously in a very small
package
Model Motor RPM Net Weight • Very low noise levels approx. 55 dB(a)
Type 60 Hz 50 Hz
Number Motor HP KW lb kg

55R720-101-TKP 24V BrushlessDC 1900* 10 0.07 5.0 2.25 • All wetted aluminum parts treated for corrosion
55R720-101-STP 100-110/100-115V, 50/60-1 PSC (4 Pole) 1575 1275 0.054 0.04 5.0 2.25 protection from moisture
*Speed can be varied by customer supplied electronics • Very low power consumption (approx. 75 watts -
Note: These units can be configured for either staged vacuum or pararrel pressure operation. AC version, 50 watts - DC version)
Staged vacuum units capable of 27.5 inHg maximum vacuum. • Long life/non-service life (up to 12,000 hours
Parallel pressure units capable of 20 psi continuous duty (approx. twice the flow shown in graphs) depending on application)

Product Performance

m 3 /h CFM
0.5 0.30 A: 24V DC
0.4 0.25 A A B: 1575 RPM
FREE AIR FLOW 0.3 0.15 C B B C Pressure flow with one head running at max. vac.
C: 1275 RPM
0.20
0.2
Vacuum flow with one head running at 30 psi.
0.1 0.10
0.05
Dashed lines indicate intermittent duty
0 0
25 20 15 10 5 0 5 10 15 20 25 30 35 40 45
inHg psig
200 400 600 800 0 0.5 1.0 1.5 2.0 2.5 3.0
Metric (mbar) Metric (bar)
1000
10 Gast Rocking Piston Compressors and Vacuum Pumps www.gastmfg.com