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Cleveland Vibrator Company
VMSAC & VMRAC Vibra-Might
Air-Cushioned Vibrator
For Hoppers, Bins, Chutes and Pipes
 
 
The VMSAC and VMRAC piston is cushioned on a pad of air at both ends of the stroke to ensure no metal to metal contact. The vibrator has a single-threaded exhaust port with exhaust muffler to reduce noise level. Additionally, the double-diameter piston guarantees the vibrator can start at any mounting angle with minimum air pressure and without the use of a piston return spring. VMSAC has a one-piece, rugged ductile iron cylinder housing which decreases the weight of the vibrator. The body is cast with a provision for attachment of a safety cable. The unit is supplied complete with heavy-duty mounting fasteners and a gasket.
 
Cut-Away
The information contained in the chart below is the result of many years of experience. It is a reasonably accurate approach to giving you quick information regarding vibrator sizing on a hopper, bin, or chute.
 
SIZING CHART
FOR BINS AND HOPPERS
Bin Capacity
lb/kg
Approx. Skin
Thickness of Bin
in/mm
VMSAC Vibrator
Size
200
91
1/8
3.2
1125
700
317
1/8
3.2
1150
ton/m.ton
1
0.9
1/8-3/16
3.2-4.8
1200
3
2.7
3/16-1/4
4.8-6.4
1300
20
18
5/16-3/8
7.9-9.5
1350
50
45
3/8
9.5
1400
100
90
3/8
9.5-12.7
1500
 
 
 
 
 
VMSAC • VMRAC
MODELPISTON DIA.
in/cm
A
in/cm
B
in/cm
C
in/cm
D
in/cm
E
in/cm
F
in/cm
G
in/cm
WT.
lb/kg
AIR CNSMP.
scfm/lpm
(lpm = liters per min.)
@ 60 psig
4.1 bar
FREQUENCY*
(vibrations per min.)
@ 60 psig
4.1 bar
VMRAC
1125
1 1/4
3.2
5 7/16
13.8
3
7.6
5 3/4
14.6
4 1/2
11.4
1/2
1.3
1/4
.64
1/4
.64
6
2.7
8.8
249
3050
VMRAC
1200
2
5.1
7
17.8
3 1/4
8.3
9 3/16
23.3
7 1/2
19.1
3/4
1.9
1/4
.64
3/8
1.0
14
6.4
9.0
255
2700
VMSAC
1125
1 1/4
3.2
4 11/16
11.9
3
7.6
3
7.6
2
5.1
3/8
1.0
1/4
.64
1/4
.64
6
2.7
8.8
249
3050
VMSAC
1150
1 1/2
3.8
5 13/16
14.8
4 1/8
10.5
4 1/8
10.5
3
7.6
5/8
1.6
1/4
.64
3/8
1.0
13
5.9
6.0
170
2700
VMSAC
1200
2
5.1
6 9/16
16.7
4 3/8
11.1
4 3/8
11.1
3
7.6
5/8
1.6
1/4
.64
3/8
1.3
14
6.4
9.5
269
2600
VMRAC
1300
3
7.6
9 3/16
23.3
6
15.24
10 1/2
20.66
3 1/4x7/3/4
9.52x19.68
7/8
2.25
3/8
.95
1/2
1.3
40
18.14
21.5
609
2300
VMSAC
1300
3
7.6
8 7/16
21.4
5 3/4
14.6
5 3/4
14.6
4 1/8
10.5
3/4
1.9
3/8
.95
1/2
1.3
28
13
21.5
609
2300
VMRAC
1350
3 1/2
8.9
11 5/16
28.73
6
15.24
10 1/2
20.66
3 1/4x7 3/4
9.52x19.68
7/8
2.25
1/2
1.3
1/2
1.3
46
20.87
23.0
651
1900
VMSAC
1350
3 1/2
8.9
10 9/16
26.8
5 3/4
14.6
5 3/4
14.6
4 1/8
10.5
3/4
1.9
1/2
1.3
1/2
1.3
34
15
19.0
538
1900
VMSAC
1400
4
10.2
12
30.5
8 1/2
21.6
8 1/2
21.6
6 1/4
15.9
1 1/4
3.2
1/2
1.3
3/4
1.9
99
45
29.0
821
1260
VMSAC
1500
5
12.7
17
43.2
11
27.9
11
27.9
7 7/16
18.9
1 1/4
3.2
3/4
1.9
1
2.5
235
107
33.0
935
920
*Frequency data was obtained through testing under a no-load condition. Frequency will decline as load is increased.
Note: VMSAC is also available in 1700 and 1900 sizes.