W.S. Tyler SS30S Ro-Tap® Sieve Shaker
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SS30S |
| Pricing | Available Upon Request |
Overview
The W.S. Tyler SS30S Ro-Tap® Sieve Shaker is a precision-engineered mechanical sieving instrument designed to perform standardized particle size distribution analysis in accordance with ASTM E11, ISO 3310-1, and USP <786>. It replicates the classic Ro-Tap® motion profile—combining horizontal circular oscillation (278 cycles/min) with vertical tapping (150 taps/min)—to ensure uniform energy transfer across the entire sieve stack. This dual-motion mechanism promotes stratification and percolation of particles through mesh openings, minimizing blinding and maximizing separation fidelity. The SS30S variant operates at 230 V / 60 Hz and is optimized for laboratories requiring compliance with North American and international regulatory frameworks, including GLP environments where traceable, repeatable sieving protocols are mandatory.
Key Features
- Robust 1/4 HP induction motor delivering consistent torque and long-term operational stability under continuous duty cycles
- Digital timer with 0.1-second resolution and programmable range up to 99 minutes, supporting both single-step and multi-stage sieving protocols
- Quick-adjust sieve support plate accommodates full-height (203 mm), half-height, or ISO 200 mm test sieves without tools
- Heavy-duty cast-iron base with pre-drilled mounting holes for secure benchtop anchoring—critical for vibration isolation and measurement reproducibility
- Compliance-ready design: All electrical components meet UL 61010-1 and CE safety standards; timing logs and power parameters support audit trails for FDA 21 CFR Part 11–aligned data integrity workflows
- Modular accessory compatibility—including Clean-N-STOR fraction collectors, acoustic enclosures (W.S. Tyler SoundShell®), and ASTM/ISO-certified sieve sets
Sample Compatibility & Compliance
The SS30S supports up to six full-height 8-inch (203 mm) test sieves or thirteen half-height sieves in a single run, accommodating standard mesh ranges from No. 4 (4.75 mm) to No. 635 (20 µm). Its mechanical motion profile satisfies the dynamic requirements of ASTM D6913, D1140, C136, and ISO 13320 Annex B for dry-sieving applications. When paired with certified W.S. Tyler test sieves—manufactured to ASTM E11 Class A tolerances and individually serialized—the system meets analytical validation criteria for QC/QA labs operating under ISO/IEC 17025 or pharmaceutical GMP guidelines. Optional calibration verification kits (e.g., certified glass bead standards) enable periodic performance qualification per SOP-driven maintenance schedules.
Software & Data Management
While the SS30S is a standalone electromechanical shaker with no embedded firmware or network interface, its deterministic motion control and precise timing architecture make it fully compatible with external laboratory information management systems (LIMS) and electronic lab notebooks (ELN). Digital timer outputs can be logged manually or integrated via optional RS-232/USB interface modules (sold separately) for automated test record generation. Timestamped operation logs—when combined with sieve calibration certificates and sample metadata—fulfill ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) required in regulated environments. Routine preventive maintenance records and calibration history are recommended to support FDA inspection readiness.
Applications
The SS30S serves as a foundational tool across materials science, geotechnical engineering, pharmaceutical manufacturing, mineral processing, and food quality control. Typical use cases include: aggregate gradation analysis per ASTM C136; cement fineness testing (ASTM C204); powder flow characterization prior to tablet compression; ceramic raw material classification; activated carbon particle sizing; and catalyst support screening. Its reliability in high-throughput QC labs stems from thermal-stable motor windings, sealed bearing assemblies, and minimal moving-part count—reducing drift and extending mean time between failures (MTBF) beyond 10,000 operational hours.
FAQ
What voltage configurations does the SS30S support?
The SS30S is configured for 230 V / 60 Hz operation with a nominal current draw of 2.2 A.
Can the SS30S accommodate ISO 200 mm sieves?
Yes—it accepts ISO 200 mm diameter sieves using the optional adapter plate (part number: 200-ADP), maintaining full compliance with ISO 3310-1 dimensional tolerances.
Is the SS30S suitable for wet sieving?
No—this model is engineered exclusively for dry-sieving applications. For wet-sieving protocols, consult the W.S. Tyler Hydro-Sieve® series.
Does the SS30S include a sieve set?
No—sieves are sold separately. Recommended starter sets include ASTM E11-compliant 8-inch stacks covering No. 4–No. 200 or No. 100–No. 635 ranges.
How is mechanical calibration verified?
Calibration is performed using certified reference standards (e.g., NIST-traceable glass microspheres) and validated against motion amplitude (±0.5 mm horizontal displacement) and tap frequency (150 ± 2 taps/min) per W.S. Tyler Technical Bulletin TB-021.

