Screw Sampler
Controlled Powder Extraction for High Repeatability
Overview
The Screw Sampler is engineered to provide controlled, repeatable extraction of powder samples from within the bulk material mass, ensuring accurate laboratory analysis and reliable process control. It is the most widely used system for sampling fine materials such as raw meal and cement.
Process Role
Fine materials stored in silos exhibit layering, segregation, and density variation, making representative sampling technically challenging. The Screw Sampler ensures reliable sampling from storage zones without disturbing material stability.
Engineering Principle
Helical probe-based extraction from bulk material. A rotating helical probe (auger) is inserted into the stored material, performing controlled insertion, uniform extraction through screw rotation, and transfer to collection systems, ensuring material is extracted from within the bulk body, not just surface layers.
Core Engineering Features
Helical Extraction Mechanism
Precision-engineered screw auger enables controlled and uniform material extraction.
Controlled Sampling Rate
Rotational speed and geometry of the screw ensure repeatable sample quantity and consistent extraction.
Minimal Material Disturbance
The design avoids disruption of bulk material structure, preserving silo stability.
Enclosed Sampling System
Sealed construction prevents contamination and ensures safe handling of fine powders.
Application Areas
Materials Handled
Process Impact
Engineering Outcome
Controlled extraction. Repeatable sampling accuracy. Reliable process verification. Engineered for precision, high-repeatability sampling in cement powder handling systems.
Operational Benefits
- Highly repeatable sampling of fine powders
- Representative extraction from within bulk material
- Reduced sampling bias
- Minimal disturbance to storage systems
Downloads
Screw Sampler - Product Datasheet
Coming Soon
Screw Sampler - Technical Specification
Coming Soon
Interested in the Screw Sampler?
Our engineers will assess your process conditions and recommend the optimal system configuration.