Screw Sampler (SCR)

The AUTONOMA Screw Sampler (SCR) is an industrial sampling solution engineered for the continuous or intermittent extraction of dry, free-flowing, non-sticky powdered materials. It is typically installed in chutes or silos, where gravity-fed material flow allows for reliable, consistent sampling.

Widely adopted across cement plants, chemical processing facilities, and power generation sites, the SCR delivers accurate and representative sampling of bulk powdered materials, supporting quality control programs that depend on consistent sample integrity.

The Screw Sampler is available in two configurations to suit different collection needs. The SCR-B, or Bottle Variant, delivers the collected sample to a discharge chute, where it falls directly into a sampling bottle by gravity, making it ideal for standalone sample collection points. The SCR-C, or Chute Variant, directs extracted material to an outlet where it drops via gravity through a chute into downstream sample preparation equipment, making it well suited for facilities with integrated lab analysis workflows.

Built for durability and low maintenance, the SCR Screw Sampler provides a dependable solution for dry powder sampling in demanding bulk material handling environments, ensuring long-term reliability and consistent sample quality.

• Compact design for easy installation in tight spaces.
• Automated or manual operation for average or spot sampling.
• Improves safety by replacing hazardous manual grab sampling with automation.
• Versatile installation in both vertical and inclined chutes.
• Compatible with chute types, including rectangular and circular designs.
• Adjustable positioning to ensure optimal placement and highly representative sampling.
• Integrated control system enables continuous, consistent sample collection.

The Screw Sampler (SCR) is driven by a geared motor connected to a transport screw housed within a fixed tube. This tube features an inlet opening that allows free-falling dry material to enter for sampling. Designed for versatility, the SCR can be mounted in both rectangular and circular chutes with a maximum inclination of 30 degrees, making it suitable for a wide range of industrial applications.

The SCR operates on a two-step cycle to ensure accurate, clean, and uncontaminated sampling. In the first step, the screw rotates forward to extract the sample material and transport it to the discharge outlet chute. In the second step, the screw reverses direction to empty and clean the pipe, preventing material build-up and cross-contamination between cycles.

This automated cleaning process ensures the system is fully reset and ready for the next sample cycle without manual intervention. With its reliable operation and self-cleaning functionality, the SCR Screw Sampler delivers consistent, representative samples in continuous process environments.

The SCR Screw Sampler is supported by control software that manages the full extraction and cleaning cycle automatically, requiring minimal operator intervention. The system governs the timing and direction of the transport screw, coordinating forward rotation for sample extraction with reverse rotation for pipe clearing, ensuring each cycle completes cleanly before the next begins.

Operators can monitor cycle status, extraction frequency, and system alerts through the control interface, providing clear visibility into ongoing sampling operations. Sampling intervals and cycle timing can be configured to match specific process requirements, allowing the SCR to be adapted to different material flow rates and production schedules.

The software also manages fault detection, flagging issues such as motor overload or incomplete cycles so that maintenance teams can respond before sample quality is affected. This level of automated control helps ensure consistent, representative sampling with reduced reliance on manual oversight, supporting continuous operation in demanding industrial environments.