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Piston sampler

Defined sample volume

Piston sampler for selective sampling from the material flow

Sampling from the falling product stream for fine-grained materials. Defined sample quantity for each extraction.

Operating behavior & mechanical features

Piston samplers protrude into the material flow and take a punctual sample from the falling product.

Sampling is carried out via a sample collection tube protruding into the material flow, which is provided with an opening into which material can fall. At the time of sampling, a pneumatically actuated piston is pushed through the sample collection tube from the waiting position in the direction of the material flow. This empties the sample collection tube. After a pause time, the piston then moves back and takes the newly collected sample material with it. The sample material obtained in this way can be transferred to a pipe socket outside the main pipe.

The term punctual sample is used because only a partial area of the product-bearing cross-section is recorded. Despite this partial detection, Piston samplers can still generate representative samples. This is guaranteed, for example, if the product flow is homogeneous across the cross-section and none of the properties to be analyzed are linked to the particle size. However, if these are dependent on the particle size, we recommend using a sampler that covers the entire cross-section, such as our Downpipe / slurry sampler.


Piston sampler side view
Piston sampler KoPN 50/250
Piston sampler for selective sampling from the material flow
Piston sampler KoPN 50/250
Screw sampler with electric drive

Screw Sampler

Sampling from the falling product stream for fine-grained materials. Variable sample quantity due to the duration of sampling.

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Clinker sampler type KPN - Like the piston sampler, the clinker sampler is a sampler that takes a punctual sample from the material flow.

Clinker sampler

Sampling from the falling product stream with separation of fine material.

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A downpipe sampler type FPN from SIEBTECHNIK TEMA in a system for quicklime

Downpipe / slurry sampler

Sampling of bulk solids / sludge across the entire chute cross-section from vertical chutes / pipes.

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