Gilson Silent Sifter® II SS-22
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SS-22 |
| Pricing | Upon Request |
Overview
The Gilson Silent Sifter® II SS-22 is a precision-engineered, low-noise mechanical sieve shaker designed for standardized particle size analysis in compliance with ASTM E11, ISO 3310-1, and USP . Unlike conventional rotary or vibratory sievers, the SS-22 employs a dual-mode motion profile—continuous rotational drive combined with controlled tapping—to achieve high-fidelity particle separation across a broad size range (25 mm to 20 µm), while reducing operational sound pressure levels by 16–18 dB(A) compared to standard rotary sifters and by 8–10 dB(A) relative to the prior-generation SS-21. This acoustic attenuation is achieved through an integrated noise-dampening architecture: a fully enclosed MDF cabinet with vibration-isolating gasketed door, acoustically optimized UHMW-PE hammer heads mounted on 6061-T6 aluminum arms, and a rigid powder-coated ASTM A513 steel frame that minimizes structural resonance. The system operates at 115 V / 60 Hz (4.7 A) and is engineered for continuous-duty laboratory use under GLP-compliant environments.
Key Features
- Ultra-low-noise operation: 16–18 dB(A) reduction vs. conventional rotary sifters; meets OSHA and EU Directive 2003/10/EC workplace noise exposure thresholds
- Dual-motion mechanism: Synchronized rotation + timed tapping ensures efficient stratification and passage of fine particles without over-agitation or blinding
- Sealed acoustic enclosure: Gasketed lever-latch door with compression seal prevents dust escape and enhances sound containment—critical for handling respirable crystalline silica (RCS) or quartz per NIOSH REL and OSHA Silica Standard 29 CFR 1926.1153
- Intuitive digital control: Large 0.5-inch (12.7 mm) LED display with ±1-second timer accuracy up to 99 minutes; pause/resume function preserves elapsed time integrity
- Ergonomic stack loading: Tool-free insertion of ASTM or ISO test sieves (200 mm or 300 mm diameter); no clamps required
- Modular sieve capacity: Supports up to 20 half-height 8-inch (203 mm) sieves or 6 full-height 12-inch (305 mm) sieves with collection pan
- Mobility & safety: Integrated floor stand with locking polyurethane casters (two fixed, two swivel) compliant with ANSI/BIFMA X5.5 stability requirements
Sample Compatibility & Compliance
The SS-22 accommodates standard ASTM E11 and ISO 3310-1 test sieves in both 200 mm (8-inch) and 300 mm (12-inch) diameters, including stainless steel, brass, and nylon mesh frames. It is validated for dry-sieving applications involving granular solids such as pharmaceutical powders, mineral aggregates, catalysts, soils, and ceramic precursors. The sealed cabinet design supports compliance with FDA 21 CFR Part 11 when paired with audit-trail-capable LIMS integration (via optional RS-232 or analog output). All mechanical components—including the ¼ HP continuous-duty motor, UHMW-PE hammer tips, and MDF enclosure—are selected for chemical resistance and long-term dimensional stability under repeated thermal and mechanical cycling.
Software & Data Management
While the SS-22 operates via standalone hardware controls, its timing module outputs TTL-level signals compatible with external data acquisition systems (e.g., LabVIEW, MATLAB, or custom SCADA platforms) for automated test logging. Optional firmware upgrade kits enable timestamped cycle reporting and configurable dwell intervals per sieve tier. For regulated environments, the unit supports IQ/OQ documentation packages aligned with ASTM D6913 and ISO/IEC 17025 calibration traceability protocols. No proprietary software installation is required; all configuration is performed via front-panel keypad navigation.
Applications
- Quality control of bulk pharmaceutical excipients and APIs per USP and Ph. Eur. 2.9.32
- Aggregate gradation testing in civil engineering labs per ASTM C136/C136M and AASHTO T 27
- Particle size distribution analysis of catalysts, battery electrode materials, and metal powders for additive manufacturing
- Soil texture classification (sand/silt/clay fractions) per USDA NRCS methodology
- Respirable dust fractionation for industrial hygiene monitoring per NIOSH Method 0600 and OSHA ID-142
FAQ
What voltage configurations are available for the SS-22?
The SS-22 is supplied in 115 V / 60 Hz (model SS-22) and 230 V / 50 Hz (model SS-22F) variants. Both share identical mechanical specifications and acoustic performance.
Is the SS-22 suitable for wet sieving?
No. The SS-22 is designed exclusively for dry-sieving applications. Wet sieving requires specialized equipment with fluid containment and corrosion-resistant construction.
Can the SS-22 be integrated into a networked lab environment?
Yes—through optional serial (RS-232) or analog voltage output modules, enabling synchronization with LIMS, ELN, or automated sample-handling workflows.
What maintenance is required?
Routine inspection of hammer head wear (UHMW-PE replacement part SSA-74), periodic cleaning of sieve support surfaces, and verification of door gasket integrity every 6 months. Motor service interval exceeds 10,000 operating hours.
Does Gilson provide validation documentation?
Yes—Factory Acceptance Test (FAT) reports, Installation Qualification (IQ), and Operational Qualification (OQ) templates are available upon request and align with ISO/IEC 17025 and ASTM E2500 guidance.
