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Cleveland Vibrator Company
Models VM-25 & PMA Vibrators
 
VM-25 Miniature Air Vibrator
 
 
 
 
The VM-25 miniature air vibrator produces 16,000 vibrations per minute while only consuming 2.0 SCFM (57 lpm) of compressed air at 80 psig (5.4 bar).
Its size and high frequency vibration make the VM-25 excellent for automated parts track vibration. It can also be used to promote the free flow of materials from small, thin-skinned (minimum 28 gauge) bins and hoppers up to 2 cubic feet(57 L) in capacity. They can be supplied with a muffler to prevent contamination and reduce noise level. An air-cushioned version, VMAC-25, will further reduce noise level, but at a reduced force output.
 
Normal output is 15 lb.
 
PMA Rapper
 
Model PMA rappers are designed for electrostatic precipitator applications. They have proven to be most economical, yet effective devices for these difficult applications. They produce higher frequencies while consuming less air than similar products. The PMA features a tapered mount that conforms to most rapper shaft and adapter designs. These vibrators are internally coated for enhanced performance.
 
The PMA's technical data is as follows: length 13" (33.0 cm), diameter 4.5" (11.4 cm), piston diameter 3" (7.6 cm), inlet port 3/8" NPT, output ports two (2) 1/2" (1.2 cm), weight 40 lbs. (18 kg), frequency 3000 VPM, air consumption 8.3 SCFM (235 lpm) and normal operating pressure 20 to 40 PSI (1.4 to 2.7 bar).
 
 
 
 
 
 
Models FEP & VMRAC-EP
 
Model FEP and newer-model VMRAC-EP vibrators feature a specially machined "extended piston." The piston extension has a threaded portion enabling it to be secured to the object receiving or transmitting vibration. They can also be used as a simple rapper with or without a rubber bumper attached to the end of the piston extension. These vibrators are internally coated for enhanced performance. The VMRAC-EP has the same basic design features as our Model VMRAC.
 
VMRAC-EP
 MODEL PISTON DIA.
in/cm
A
in/cm
B
in/cm
C
in/cm
D
in/cm
E
in/cm
F
in/cm
G
in/cm
J
in/cm
K
in/cm
L
in
M
in/cm
AIR CNSMP.
scfm/lpm
(lpm = liters per min.) @ 60 psig
4.1 bar
FREQUENCY*
(vibrations per min.) @ 60 psig
4.1 bar
WT.
lb/kg
11251 1/4
3.2
6 3/4
17.1
6.0
15.2
5 7/8
14.9
3
7.6
4 1/2
11.4
--
--
1 1/2
3.8
1/4
0.6
1/2
1.3
1/4-2011/16
1.7
7.2
204
32008
3.6
12002
5.1
9 3/4
24.7
9.0
22.8
9 3/16
24.2
3 1/4
8.2
7 1/2
19.0
--
--
1 5/8
4.1
3/8
1.0
1
2.5
3/8-1613/16
2.1
10
283
270015
6.8
13003
7.6
11 1/2
25.2
10
25.4
8 5/8
21.9
4
10.2
7
17.8
2 3/8
6.0
13/16
2.1
1/2
1.3
1
2.5
3/8-1613/16
2.1
19
238
230032
15
 
 
FEP
 MODEL PISTON DIA.
in/cm
A
in/cm
B
in/cm
C
in/cm
D
in/cm
E
in/cm
F
in/cm
G
in/cm
H
in/cm
J
in/cm
K
in/cm
L
in
M
in/cm
AIR CNSMP.
scfm/lpm
(lpm = liters per min.) @ 60 psig
4.1 bar
FREQUENCY*
(vibrations per min.) @ 60 psig
4.1 bar
WT.
lb/kg
2"2
5.1
10 1/2
26.7
9 3/4
24.8
9
22.9
4
10.2
7 1/2
19.1
-2
5.1
1/4
0.6
1/4 (2)
0.6 (2)
1
2.5
3/8-1611/16
1.7
9.5
269
220028
13
3"3
7.6
11 1/2
29.2
10
25.4
8 5/8
21.9
4
10.2
7
17.8
2 3/8
6.0
13/16
2.1
3/8
1.0
1/2
1.3
1
2.5
3/8-1613/16
2.1
21.5
609
230032
15
*Frequency data was obtained through testing under a no-load condition. Frequency will decline as load is increased.
These models can also be supplied with square bases, Model VMSAC-EP.