Sentry SA Automatic Cross-Cut Sampler

Part #
Sentry SA

The Sentry Model SA sampler takes a cross-cut sample of free-flowing materials from vertical spouts and chutes. The SA takes a sample when a solenoid-controlled pneumatic rotary actuator swings a pelican type diverter on an arc across the entire product flow. The diverter captures a sample then discharges it through the pelican tube. The discharge tube is on the axis of rotation and is parallel to the material flow. The diverter is under a dust seal when at rest, keeping the fines from flowing into the diverter. The sampler is controlled by a Sentry automatic control system, allowing the operator to program the time between samples.

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, powders, flakes, granules, grain, and seed


  • USDA, Canadian Grain, FGIS, and NOPA approved design
  • Operates under a few inches w.g. (+/-) pressure which makes it dust and vapor-resistant to working areas
  • Available with air or electric actuation
  • Electrical option includes AC TEFC motor; DC and explosion-proof options available
  • Rugged steel construction
  • Optional materials available
  • Controllers and remote operating modules available in a variety of configurations
  • Available in a model that is conformant to ATEX Standards (through third party verification)
More Information
Materials 300 series stainless, Aluminum Cylinder, Kevlar, White Nitrile
Particle Size 10 μm - ¼" (6 mm); larger sizes upon request
Process Temperature -20°F to 180°F (-29°C to 82°C)
Maximum Process Pressure ATM
Instrument Air Required 60 to 80 psi, 282 in³ per 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

Download the eBook!

Cross-Cut Samplers

For the most accurate samples, take a cross-section sample across your entire process stream.

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