Maximum temperature 150°C=302°F
Maximum pressure 6 Bar= 87 PSI


The FP-series pneumatic piston vibrators produce a linear vibration with an infinitely variable amplitude and frequency.
The frequency is controlled by the air pressure.

A spring is used in the vibrator body to aid starting.
Minimum operating pressure 2 Bar (29 P.S.I.).


5-MICRON-FILTER necessary! A lubricator must be used to
guarantee a long working life. A hydraulic oil ISO VG5 =
5cSt/40°C must be used, for example SHELL Tellus oil C5.

The aluminium body is hard coated and is corrosion resis- tant. The power-to-weight ratio of the unit makes it particularly efficient for feeder applications. Explosion proof, light weight, compact, quiet and efficient, these units are ideal for most applications. Easy to install and designed to work continuously under the most arduous conditions. Servicing
requirements are minimal.


The FP-series vibrators have a long life with no undue piston
or cylinder wear. The air line filter must be inspected and
cleaned at regular intervals. Dirt or contaminated oil will slow
down or stop the vibrator.

  1. Hard anodised aluminium alloy body
2. Leaded bronze piston
3. Starter spring
4. Air inlet
5. Sound absorbing exhaust system
6. Hard anodised aluminium alloy socket
7. Threaded base for mounting
8. Hard anodised aluminium alloy end cap
9. Air outlet

Data obtained with a Kistler Dynamometer on a heavy laboratory test block.
Frequency and force will decrease on a less rigid mount.
Specifications subject to change without notice or obligation.
* with Customary Silencer
** with 1/4″-Free-Flow Silencer


DIMENSIONS *will accept NPT


1/4″-FREE-FLOW Silencer/Flow Restrictor

(only for use with FP 25 and FP 35 models)

The V4″-FREE-FLOW silencer employs the principal of diffusion via a flow labyrinth and elimi-
nates the clogging problems encounted with conventional filter type silencers.

The silencer also incorporates a flow restrictor which makes it possible to select and hold a
given amplitude.

The 1/4″-FREE-FLOW silencer can be fitted either on the vibrator or positioned as a remote
control device.

By correct adjustment of the flow restrictor the dB value can be reduced by up to 50%.
The FREE-FLOW silencers are machined from acetal resin POM ?black.