Air flow in cubic feet per minute and sand consumption per hour

Air gauge pressure in pounds per square inch
1/16" CFM
lbs. Sand/HR
Air Cost/HR
2.7
20
1.1
3
23
1.1
3.5
28
1.3
4
30
1.3
5
37
1.6
5.5
41
1.6
6
45
1.6
6.5
50
1.9
8
60
1.9
3/32" CFM
lbs. Sand/HR
Air Cost/HR
6
45
1.9
7
53
1.9
8
60
1.9
9
68
2.7
11
82
2.7
13
90
4.0
13
98
5.3
15
112
5.3
18
136
5.3
1/8" CFM
lbs. Sand/HR
Air Cost/HR
10
75
2.7
12
95
4.0
14
103
5.3
17
130
5.3
19
142
6.7
21
160
13.3
23
170
13.3
28
190
16.0
31
230
24.0
3/16" CFM
lbs. Sand/HR
Air Cost/HR
22
180
5.3
27
200
10.7
33
250
10.7
38
280
24.3
43
330
26.7
48
370
32.0
53
400
34.7
58
430
48.0
70
520
58.7
1/4" CFM
lbs. Sand/HR
Air Cost/HR
40
300
13.3
50
375
21.3
58
420
29.3
67
500
37.3
76
570
45.3
85
640
56.0
94
700
66.7
103
760
74.7
125
900
109.3
5/16" CFM
lbs. Sand/HR
Air Cost/HR
63
470
24.0
80
600
32.0
91
620
45.3
105
800
58.7
119
830
74.7
133
1000
88.0
148
1100
106.7
168
1200
128.0
198
1500
173.3
3/8" CFM
lbs. Sand/HR
Air Cost/HR
90
680
32.0
110
750
48.0
130
885
45.3
151
100
85.3
171
1300
106.7
191
1400
125.3
216
1600
152.0
234
1750
181.3
282
2200
221.3
7/16" CFM
lbs. Sand/HR
Air Cost/HR
121
830
48.0
150
110
66.7
177
1300
88.0
205
1600
109.3
233
1750
122.7
260
2000
170.7
287
2200
197.3
304
2300
234.7
313
2850
325.3
1/2" CFM
lbs. Sand/HR
Air Cost/HR
161
1200
56.0
196
1500
85.3
232
1750
117.3
268
2000
152.0
304
2300
189.3
340
2580
234.7
376
2800
272.0
416
3100
314.7
502
3800
478.0
5/8" CFM
lbs. Sand/HR
Air Cost/HR
252
1800
90.7
307
2300
133.3
364
2700
184.0
420
3200
237.3
476
3600
296.0
534
4000
360.0
587
4300
421.3
645
4800
490.7
785
5300
498.7
3/4" CFM
lbs. Sand/HR
Air Cost/HR
362
2700
130.7
442
3300
170.7
522
4000
264.0
604
4500
341.3
685
5100
421.3
765
5700
490.7
843
6300
602.7
925
7000
714.7
1127
7500
994.7

CFM = Cubic Feet Per Minute
Air Cost/HR = Cost based on electricity at $.04 per KWH