Sentry A Automatic Point Sampler

Part #
Sentry A

The Sentry Model A sampler is designed for automatic sampling of free flowing materials from screw or drag conveyors. The Model A takes a sample when a solenoid-controlled air cylinder opens a sliding gate on the sampler, then closes the gate. Material characteristics are not affected by the sampler because no moving parts convey the material to the sample container. Sample volume can be changed at the sampler controller.

With representative sampling, characteristics of each sample match that of the entire lot or batch—so samples are repeatable, leading to accurate sample analysis data. Automatic sampling ensures a sample can be easily and safely obtained with no need for direct human interface or interference. This ensures sample integrity as well as operator safety.

Suitable for: Pellets, flakes, granules, grain and seed


  • Customized to meet various application needs
  • Designed to eliminate degradation of sample material
  • No moving parts in conveyance of sample to container, keeping material characteristics consistent
  • CE and ATEX compliant models available
  • Pneumatic or electric actuation for flexibility
  • Air filter, regulator and gauge where applicable
  • Optional release coating to ensure a non-stick surface
  • QPQ hardening of contact surfaces available to protect against wear and abrasion
  • Pre-plumbed filter/regulator and solenoid valve available
More Information
Materials 300 series stainless, Aluminum Cylinder, UHMW-PE, White Nitrile
Particle Size 10 μm - ¼" (6 mm); larger sizes upon request
Process Temperature -10°F to 180°F (-23°C to 82°C)
Maximum Process Pressure ATM
Instrument Air Required 60 to 80 psi, 11 in³ per inch of stroke
The Beginner's Guide to Representative Sampling

Guide to Representative Sampling

Learn the many benefits of representative sampling and get answers to your representative sampling questions

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