PV and PVS Piston Vibrator Series

Positive Punch for Difficult Applications

Syntron ® Piston Vibrators from FMC

Technologies assure the flow of materials

through bins, chutes and weigh batchers.

Their cast iron, flat base construction provides

an efficient means of transmitting shock energy

developed by the reciprocating piston

to the mounting surface.

Syntron Piston Vibrators are available in two

models: High impact (PV) and Reduced Noise

(PVS). PVS vibrators (impact against a cushion

of air) can be used where noise is objectionable.

Unlike turbine vibrators, piston vibrators

require lubrication with oil, SAE-10 or lighter.

Lack of oil in the air rapidly wears down the

piston and cylinder wall.

Features and Benefits

I Cast iron, flat base construction.

I One-piece housing

I Flange mounted

I Ideal for use in mining, chemical, concrete,

plastics, steel, foundry and paper industries

I Available in high impact (PV) or reduced noise

(PVS) models

I High thrust reciprocating action of PVS models

permits operation at low air pressures

I High impact, linear force and efficient energy

transfer assures flow of materials through bins,

chutes and weigh batchers

I Linear vibration

I Impacts in both directions

Pneumatic Vibrators

Piston Vibrator Selection

In order to move material in a bin or hopper, the friction

between the material and the bin wall must be broken. Once

the friction is broken, material cannot cling to the sides of

the bin and it will flow out through the discharge. A prime

consideration in selecting the correct piston bin vibrator is

wall thickness. The following formulas calculate material in

the restricted area which is used as a guide to determine the

number of piston bin vibrators necessary.

I Calculate the weight of the material in the transition or

sloping part of the bin. Normally, this is the only place where

the friction between the material and the bin side has to be

broken. Do not calculate the total weight, only what is in the

transition part of the bin.

I For conical bins, calculate as follows:

0.261 x dia. 2 x height x material density in lb/ft 3 (kg/m 3 )

I For rectangular bins, calculate as follows:

Length x width x height x 1/3 x material density.

Chutes

The force required of the vibrator is equal to the weight

of the chute plus vibrator plus maximum material in the

chute. See page 43 for more detail.