Pneumatic Knockers PKL Serie

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, preferably with oil mist.

Operating Pressure:

2,5 bar to 6 bar

Ambient Temperature:

• 20ºC to 60ºC
• HT version up to 160ºC

"ST" Kit

The ST kit enables a continuous impact sequence when connected to a permanent compressed air supply.

"EE" Kit

The EE kit replaces the steel plate and is used to produce a low noise impact or "rubber hammer effet".

PKL E (ATEX)

PKL E pneumatic impactors comply with directive 94/9/EC (ATEX product directive) device group II and are suitable for use in potentially explosive areas of category 2 (2G and 2D 85°C[T6]) in zones 1, 2, 21 and 22.

PKL S (Stainless Steel)

Stainless steel intermittent impactors satisfy the specific requirements for chemical resistance of the surfaces.

PKL HT (High Temperature)

The HT series is designed for use at ambient temperatures of up to 160ºC .

Working Pressure

PKL series work generally speaking, under a 4 - 6 bar pressure. PKL