W.S. Tyler SS30S Ro-Tap Sieve Shaker

Overview

The W.S. Tyler SS30S Ro-Tap Sieve Shaker is a precision-engineered mechanical sieve shaker designed to perform standardized dry particle size analysis in accordance with ASTM E11, ISO 3310-1, and USP <786>. It replicates the dual-motion protocol defined in ASTM D6913 and D5758: horizontal circular oscillation (278 cycles/min) combined with vertical tapping (150 taps/min), ensuring reproducible, operator-independent separation of granular and powdered materials. Unlike orbital or vibratory shakers, the Ro-Tap’s cam-driven mechanism delivers strictly controlled, repeatable kinematics—critical for method validation, quality control laboratories, and regulatory submissions under GLP/GMP frameworks. The SS30S variant operates at 230 V / 60 Hz, making it suitable for international labs requiring compatibility with North American frequency standards while maintaining European voltage infrastructure.

Key Features

• Cam-actuated dual-motion drive system delivering 278 oscillations/min and 150 vertical taps/min per ASTM D6913–21
• Digital electronic timer with 0.1-second resolution and programmable duration up to 99 minutes
• Robust 1/4 HP induction motor engineered for continuous-duty operation and thermal stability
• Quick-adjust sieve support plate accommodating full-height (203 mm), half-height, or intermediate-height 8-inch (203 mm) test sieves
• Sturdy steel frame with bolt-down mounting capability for vibration isolation and long-term mechanical integrity
• Compatibility with both ASTM-standard wire cloth sieves and ISO 3310-1 compliant 200 mm diameter sieves
• Integrated safety interlock preventing operation when lid is unlatched

Sample Compatibility & Compliance

The SS30S supports particle size analysis across a broad range—from coarse aggregates (No. 4, 4.75 mm) down to fine powders (No. 635, 20 µm)—using standard 8-inch (203 mm) test sieves. Its motion profile satisfies the mechanical requirements of ASTM E11 (Specification for Woven Wire Test Sieve Cloth and Test Sieves), ISO 3310-1 (Test Sieves — Technical Requirements and Testing), and pharmacopeial methods including USP <786> (Particle Size Distribution). The device is routinely employed in QC/QA environments subject to FDA 21 CFR Part 11 compliance, where audit-trail-capable timing logs and consistent mechanical actuation are prerequisites for data integrity. All structural components meet RoHS directives; electrical design conforms to IEC 61000-6-3 (EMC emission standards).

Software & Data Management

While the SS30S is a standalone electromechanical instrument without embedded software, its precise digital timer output (time elapsed, cycle count) is fully compatible with external laboratory information management systems (LIMS) via manual entry or optional analog/digital signal interface modules (e.g., 4–20 mA or TTL pulse outputs, available through W.S. Tyler OEM integration kits). For regulated environments, users may pair the shaker with validated spreadsheet templates or ELN platforms that capture timestamped start/stop events, sieve stack configuration, and operator ID—enabling full traceability per ALCOA+ principles. Calibration records for timer accuracy (±0.1 s over 99 min) and tap amplitude (verified via accelerometer-based verification per ASTM D6913 Annex A2) are maintained separately as part of equipment qualification (IQ/OQ/PQ).

Applications

• Quality assurance of raw materials in pharmaceutical, chemical, and food manufacturing
• Aggregate gradation testing in civil engineering and asphalt/concrete production
• Mineral processing and metallurgical feed characterization
• Research-scale particle size distribution (PSD) profiling for catalysts, ceramics, and battery electrode materials
• Validation of milling and micronization processes in R&D labs
• Compliance testing for ISO 13320 (laser diffraction) method correlation studies

FAQ

What sieve diameters and configurations does the SS30S support?
The SS30S accommodates up to six full-height 8-inch (203 mm) test sieves stacked vertically, or thirteen half-height sieves using a compatible half-height pan assembly. ISO 200 mm sieves are also supported with appropriate adapter rings.
Is the SS30S compliant with FDA 21 CFR Part 11?
The unit itself is not software-based and therefore not directly subject to Part 11. However, its deterministic mechanical action and traceable digital timer enable full compliance when integrated into a validated procedural workflow with documented calibration, access controls, and audit trails.
Can the SS30S be mounted inside a sound enclosure?
Yes—it is fully compatible with W.S. Tyler’s SoundShield™ acoustic enclosures (sold separately), which reduce operational noise to ≤65 dBA at 1 m distance, meeting OSHA workplace exposure guidelines.
What maintenance is required for long-term reliability?
Routine inspection of cam follower lubrication (per manufacturer’s grease specification), periodic verification of tap amplitude using calibrated accelerometers, and annual timer calibration against NIST-traceable time sources are recommended.
Does the SS30S include test sieves or accessories?
No—sieves, pans, covers, and accessories (e.g., Clean-N-Stor fraction collectors, Ro-Tap II dual-stack adapters) are ordered separately to match application-specific mesh specifications and material compatibility requirements.