Gilson SS30S Ro-Tap® Sieve Shaker (230V / 60Hz)

Overview

The Gilson SS30S Ro-Tap® Sieve Shaker is a precision-engineered mechanical sieve shaker designed and manufactured by W.S. Tyler® and distributed globally by Gilson, Inc. It operates on the standardized Ro-Tap® motion profile—combining horizontal circular oscillation (278 cycles/min) with vertical tapping (150 taps/min)—to replicate the manual sieving action defined in ASTM E11, ISO 3310-1, and USP <786>. This dual-motion mechanism ensures uniform particle distribution across the sieve surface and consistent stratification of granular materials, enabling high reproducibility in particle size distribution (PSD) analysis. The SS30S model is specifically configured for 230V / 60Hz operation, making it suitable for laboratories in regions including North America (with appropriate transformers), parts of South America, and select industrial facilities operating on 230V/60Hz infrastructure. Its robust cast-iron frame, 1/4 HP induction motor, and vibration-dampening base mount support continuous-duty operation under GLP and ISO 17025-compliant environments.

Key Features

• Ro-Tap® standardized motion: 278 oscillations/min + 150 taps/min, fully compliant with ASTM E11, ISO 3310-1, and ISO 565 test method requirements
• Dual-action mechanical drive system delivering repeatable energy input to sample beds, minimizing operator variability
• Integrated digital timer with 0.1-second resolution and 99-minute maximum duration, supporting programmable multi-stage sieving protocols
• Quick-adjust sieve stack clamp assembly accommodating up to six full-height 8-inch (203 mm) test sieves or thirteen half-height sieves in a single run
• Interchangeable sieve support plate compatible with both ASTM-standard 8-inch (203 mm) and ISO 200 mm diameter sieves
• Sturdy cast-iron housing with reinforced mounting feet; optional bench-bolting for enhanced stability during extended sieving cycles
• Thermally protected 1/4 HP induction motor rated for continuous operation with low-maintenance brushless design

Sample Compatibility & Compliance

The SS30S is validated for dry-sieving applications across a broad particle size range—from No. 4 (4.75 mm) down to No. 635 (20 µm) per ASTM E11 nomenclature. It supports standard test sieves constructed from stainless steel, brass, or phosphor bronze wire cloth, with mesh openings conforming to ISO 3310-1 tolerances. The unit meets electromagnetic compatibility (EMC) requirements per IEC 61326-1 and electrical safety standards per UL 61010-1 and CSA C22.2 No. 61010-1. When operated within documented SOPs and paired with certified traceable sieves, data generated satisfies audit requirements under FDA 21 CFR Part 11 (when used with compliant LIMS integration), ISO/IEC 17025, and GMP-controlled QC workflows.

Software & Data Management

While the SS30S is a standalone electromechanical instrument without embedded firmware or network connectivity, its timing precision and repeatability enable seamless integration into laboratory data management systems. Users may log sieving parameters—including voltage, frequency, duration, sieve stack configuration, and mass retention per fraction—into electronic lab notebooks (ELNs) or LIMS platforms supporting ASTM E2917 or ISO/IEC 17025 traceability. Optional accessories such as the Clean-N-STOR fraction collector facilitate structured post-sieving handling, reducing manual transcription errors. For regulated environments, procedural documentation—including calibration records for the digital timer (traceable to NIST standards) and periodic verification of tap amplitude and oscillation frequency—is recommended annually or per internal QA schedule.

Applications

• Quality control of bulk pharmaceutical powders, excipients, and granules per USP <786> and EP 2.9.32
• Aggregate gradation analysis in civil engineering and asphalt concrete testing (ASTM C136, AASHTO T 27)
• Particle size characterization of catalysts, metal powders, ceramics, and battery electrode materials
• Routine QC in food processing for flour, sugar, spices, and dairy powder consistency
• Research-grade PSD profiling in academic and industrial R&D labs requiring method transfer between Ro-Tap® platforms
• Validation of air-jet sieve or laser diffraction results via orthogonal dry-sieving methodology

FAQ

Is the SS30S compatible with ISO 200 mm test sieves?
Yes—the SS30S accepts ISO 200 mm diameter sieves using the included adjustable support plate, provided the frame height and clamping geometry match standard configurations.
What is the maximum allowable load per sieve stack?
The SS30S is rated for up to 2.5 kg total sample mass distributed across the full-height stack; exceeding this may affect tap amplitude consistency and long-term motor performance.
Does Gilson provide calibration services for the SS30S?
Gilson offers factory-recommended verification procedures and supplies NIST-traceable timing calibration tools; third-party accredited calibration labs may perform full metrological validation per ISO/IEC 17025.
Can the SS30S be operated inside a sound enclosure?
Yes—it is fully compatible with W.S. Tyler® Sound Enclosures (e.g., Model SE-8), which reduce operational noise to ≤65 dBA at 1 meter distance while maintaining airflow and thermal dissipation.
Is the digital timer compliant with 21 CFR Part 11 for electronic records?
The timer itself is not Part 11–compliant as a standalone device; however, when used within a validated LIMS or ELN workflow that captures and signs all sieving metadata, the resulting data package may satisfy regulatory submission requirements.