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

Overview

The Gilson SS30S Ro-Tap® Sieve Shaker is a precision-engineered mechanical sieve shaker 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 efficient particle stratification and separation, minimizing segregation bias and maximizing reproducibility in dry sieve analysis. Built for high-throughput laboratory and quality control environments, the SS30S features a robust cast-iron frame, vibration-dampening feet, and optional bench-mounting capability for enhanced stability during extended operation. As part of the W.S. Tyler® Ro-Tap® family, it maintains full compatibility with standard 8-inch (203 mm) test sieves—including ASTM, ISO, and custom mesh configurations—enabling traceable, method-compliant granulometric testing from No. 4 (4.75 mm) down to No. 635 (20 µm).

Key Features

• Ro-Tap® certified dual-motion drive: 278 oscillations/min + 150 vertical taps/min, precisely calibrated per ASTM E11 Annex A1
• Digital electronic timer with 0.1-second resolution and programmable duration up to 99 minutes
• 230V / 60Hz universal motor (1/4 HP, 2.2 A), optimized for stable performance under continuous-duty conditions
• Quick-adjust sieve support plate accommodates full-height (6×), half-height (13×), or ISO 200 mm sieve stacks without tools
• Integrated vibration isolation base and optional bench-bolt mounting kit for low-noise, high-stability operation
• Compliance-ready design: Supports GLP/GMP documentation workflows via external data logging interfaces (RS-232 or USB optional)

Sample Compatibility & Compliance

The SS30S accepts all standard 8-inch (203 mm) diameter test sieves conforming to ASTM E11 and ISO 3310-1 specifications. It supports stainless steel, brass, and nylon mesh materials with nominal openings ranging from 4.75 mm (No. 4) to 20 µm (No. 635). The unit is validated for use with both dry free-flowing powders and granular solids—commonly applied in pharmaceutical excipient QC, mineral processing, cement fineness testing, and polymer resin characterization. Its motion profile satisfies regulatory requirements for sieve analysis referenced in USP <786>, FDA 21 CFR Part 11 (when paired with compliant software), and ISO/IEC 17025-accredited laboratories. All mechanical components are manufactured to W.S. Tyler® original equipment specifications, ensuring long-term dimensional stability and repeatability across instrument lifecycles.

Software & Data Management

While the SS30S operates as a standalone analog-digital hybrid instrument, its timer output and motor status signals are accessible via rear-panel TTL-level interface for integration into LIMS or ELN systems. When used with Gilson’s optional SieveLog™ software suite (v3.2+), users can generate audit-trail-enabled test reports compliant with 21 CFR Part 11—featuring electronic signatures, timestamped run logs, and configurable pass/fail criteria based on retained weight percentages. Raw timing data is exportable in CSV format for statistical process control (SPC) analysis using Minitab or JMP. Firmware updates are delivered via secure HTTPS portal, maintaining alignment with current ASTM E11-23 revision requirements.

Applications

• Pharmaceutical: Excipient particle sizing per USP <786>; blend uniformity assessment prior to tableting
• Cement & Concrete: Fineness testing of Portland cement (ASTM C150, C204)
• Minerals & Aggregates: Gradation analysis of sand, gravel, and crushed stone (ASTM D6913)
• Food & Feed: Flour particle distribution, spice grinding validation, and premix homogeneity verification
• Chemicals & Polymers: Catalyst support particle classification, pigment dispersion screening, and additive masterbatch QC
• Environmental: Soil texture analysis (USDA textural triangle classification)

FAQ

Is the SS30S compatible with ISO 200 mm sieves?
Yes—the SS30S accepts ISO 200 mm diameter sieves using the included adjustable support collar. Mesh calibration remains traceable to NIST SRM 2800 when used with certified reference sieves.
Does the unit include a sieve stack or accessories?
The SS30S is supplied as a base shaker only. ASTM or ISO test sieves, receiver pans, and lid assemblies must be ordered separately or as part of a configured kit (e.g., Gilson Catalog #SIEVE-KIT-8IN-ASTM).
Can the SS30S be integrated into an automated lab workflow?
Yes—via optional RS-232 or USB-to-serial adapter, enabling remote start/stop commands and real-time timer readback for synchronization with robotic sample handlers or balance systems.
What maintenance is required for long-term accuracy?
Annual verification of tap amplitude (±0.5 mm) and oscillation frequency (±2 rpm) using a calibrated laser tachometer is recommended. Motor brushes require replacement every 10,000 operating hours; Gilson provides OEM service kits and calibration certificates.
Is bench mounting hardware included?
A universal M6 threaded mounting kit is included with all SS30S units. Anchoring to a 2-inch-thick concrete or steel workbench is advised for applications exceeding 30-minute continuous operation.