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ROC-R©
Rocking Piston Compressors & Pumps

The outstanding performance and flexibility of Gast oilless Rocking Piston air compressors and vacuum pumps, available in standard, twin and miniature styles, make them the ideal choice for countless applications.

· Bonded piston rod and bearing assembly will not slip, loosen or misalign, providing years of trouble-free performance
· Exclusive long-life cup material ensures extensive service-free operation
· All wetted aluminum parts are treated for corrosion protection, offering greater durability in demanding applications
· Rigid motor shell and superior motor-to-pump alignment gives tighter tolerances and allows more consistent performance and noise levels

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Model NO. Free Air
Flow Range
Max
Pressure
Range
Max
Vacuum
Range
AC
DC
cfm m3/h PSI Bar In - Hg m bar

 

8R 3.4
lpm
  22.5 1,55 17 438   x
20R 14.7 lpm   35 2,14 20.5 319 x  
30R 0.61 1,04 120 8,28       x
34R 0.8 1,41 200 13,8       x
55R 0.25 0,40 30 2,07 24 200    
LOA 0.83

1,40

100 6,90 27 99 x x
LAA 1.5 2,55
60 4,14 29 31 x  
SAA 3.0 5,10
30 2,07 29.5 14 x  
RAA 2.7 4,59 100 6,90 29 31 X  
ROA 1.6 2,72
100 6,90 27 99   x
ROA
Lab Model
0.8 1,36 100 6,90 25 167 x  
71R/72R
Single Cylinder
2.4 4,08
100 6,90 _ _ x  
71R
Twin Cylinder
High Pressure
2.0 3,40
175 12,08 _ _ x  
71R/72R
Twin Cylinder Compressors
5.5 9,35
100 6,90 _ _ x  
71R/72R
Twin Cylinder
Vacuum Pump
5.5 9,35
    29 31 x  
74R
Single Cylinder
Compressor
1.5 2,55
100 6,90 _ _ x  
75R
Twin Cylinder
Vacuum Pump &
Compressor
5.1 8,67
40 2,76 27 99 x  
75R
Single Cylinder
Vacuum Pump
1.9 3,23
    27 99 x  
81R
Twin Cylinder
Compressor
3.7 6,29
100 6,90 _ _ x  
82R
Twin Cylinder Vacuum Pump &
Compressor
4.2 7,14
30 2,07 26 133 x x
85R
Twin Cylinder
Compressor
4.3 7,31 40 2,76     x