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Pneumatic Piston Vibrators - PKL Series

Supplier: Vibration Systems & Solutions

Piston model are either non-impacting or impacting models, with the former being preferred for most applications.

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In both types, a piston reciprocates inside a cylinder with internal ports giving the back & forth motion without the need for special valve arrangements.

Impacting models have metal-to-metal contact at each end of the piston stroke, which can be noisy and increas stress on the hopper wall. Continuous impact models are also available with a small air cushion to limit the noise to some degree but this also limits the force output. These models can be adjusted for frequency but by their nature cannot be adjusted for amplitude.

Single impact models use a piston held against a spring by air pressure. On release of this pressure the spring impacts against a strike plate.

Pneumatic Piston Vibrators - PKL Series

  • Higher impact power than traditional impactors
  • Lower compressed air requirement per impact
  • Low-noise versions with elastomer insert EE
  • Versions with automatic control ST
  • ATEX or stainless steel versions available

Applications
Series PKL pneumatic impactors are particularly suitable for knocking stubborn residues from walls, pipes and containers. Examples of applications include: elimination of tube-forming, bridging and evacuation of residues.

Design and Function
The impact (similar to a hammer) is created by the piston. With PKL 125 to 150 the impact is produced directly against the surface upon which the impactor is mounted. From PKL 170 upwards the impact is produced against the base plate. The compressed air pushes the piston against one or two springs. The fast exhausting of the piston chamber causes the piston to strike abruptly against the impact surface.

Series PKL impactors can be operated using non-lubricated compressed air. A directional control valve is necessary for activation (not included). The maximum impact sequence is 10 impacts in a row, at a rate of 15 impacts per minute and 180 impacts per hour.

Permissible Operating Conditions Drive Medium:
Compressed air or nitrogen (filter ≤ 5 μm), Preferably with oil mist

Operating Pressure:
250 kPa to 600 kPa

Ambient Temperature:
– 20ºC to 60ºC
HT version up to 160ºC

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