Gilson SS-8R Tapping Sieve Shaker for 8-inch (203 mm) Sieves
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | SS-8R |
| Pricing | Available Upon Request |
Overview
The Gilson SS-8R Tapping Sieve Shaker is an industrial-grade, precision-engineered mechanical sieve shaker designed for standardized particle size distribution analysis in accordance with ASTM E11, ISO 3310-1, and USP . It employs a patented dual-directional tapping motion—48 taps per minute—combined with controlled rotational oscillation to ensure uniform particle reorientation and efficient stratification across the sieve surface. Unlike linear or horizontal shakers that induce dead zones or incomplete segregation, the SS-8R’s vertical tapping action imparts kinetic energy vertically while its continuous 360° rotation prevents particle packing and promotes consistent exposure of near-size particles to mesh openings. This principle enables high-fidelity separation of granular materials ranging from coarse aggregates (up to 25 mm) down to fine powders (as low as 20 µm), making it suitable for QC laboratories, geotechnical testing facilities, pharmaceutical development labs, and mineral processing R&D environments.
Key Features
- Patented EZ-Clamp™ quick-release system: One-handed operation secures full-height or half-height 8-inch (203 mm) sieve stacks without tools—reducing setup time by >70% versus traditional bolted systems.
- Dual-voltage compatibility: Factory-configurable for 115 V / 60 Hz or 230 V / 50 Hz operation; internal voltage regulation ensures consistent tap amplitude and rotational speed across input fluctuations.
- Precision digital timer: Programmable test duration from 1 second to 99 minutes 59 seconds, with automatic shutdown and reset functionality—critical for GLP/GMP-compliant workflows requiring traceable test parameters.
- Robust mechanical architecture: 1/3 HP heavy-duty induction motor, powder-coated steel housing, and dynamically balanced drive mechanism enable stable, low-vibration operation even at maximum load (up to 20 half-height sieves).
- Compliance-ready design: Meets ASTM D6913, AASHTO T 27, and ISO 2591-1 requirements for aggregate gradation; supports both standard ASTM and ISO-compliant sieve frames via optional adapters.
Sample Compatibility & Compliance
The SS-8R accommodates standard 8-inch (203 mm) diameter sieve frames—including full-height (50 mm), half-height (25 mm), and nested configurations—with optional adapter kits for 200 mm ISO sieves. It is validated for use with dry, free-flowing, non-cohesive particulates such as soils, sands, crushed stone, catalysts, excipients, and ceramic powders. While the recommended analytical range spans 25 mm (1 inch) down to 20 µm (No. 635 sieve), actual resolution depends on material density, aspect ratio, and moisture content. For regulatory submissions, the device supports audit-trail-capable data logging when integrated with Gilson’s optional SSA-805R acoustic enclosure (which reduces ambient noise to ≤65 dBA) and third-party LIMS-compatible software platforms compliant with FDA 21 CFR Part 11.
Software & Data Management
The SS-8R operates as a standalone electromechanical instrument with no embedded firmware or network interface. All control logic resides in its hardened microcontroller-based digital timer module, ensuring deterministic timing performance unaffected by external software dependencies. For laboratories requiring electronic records, Gilson provides calibration documentation (NIST-traceable certificate included), SOP templates aligned with ISO/IEC 17025, and integration guidance for laboratory information management systems (LIMS). Optional accessories—including the Clean-N-STOR fraction collector and SSA-805R acoustic hood—enhance workflow reproducibility and environmental control during extended batch testing.
Applications
- Aggregate gradation analysis per ASTM C136/C136M and AASHTO T 27 in civil engineering and construction QA/QC.
- Pharmaceutical powder characterization for USP particle size distribution assessment of APIs and excipients.
- Mineralogical sorting in mining and metallurgical process optimization.
- Quality verification of abrasive media, foundry sands, and catalyst supports.
- Educational demonstration of sedimentation dynamics and sieve efficiency curves in materials science curricula.
FAQ
What sieve diameters does the SS-8R support natively?
The SS-8R is configured for 8-inch (203 mm) diameter sieves only. Adapters for 200 mm ISO sieves are available as optional accessories.
Is the tapping frequency adjustable?
No—the SS-8R delivers a fixed, calibrated tapping rate of 48 taps per minute, optimized per ASTM E11 and ISO 3310-1 for method reproducibility.
Can the SS-8R be used for wet sieving?
No—it is designed exclusively for dry-sieving applications. Wet sieving requires dedicated equipment with fluid handling and drainage capabilities.
Does the SS-8R include calibration certification?
Yes—a NIST-traceable calibration certificate is supplied with each unit, covering timer accuracy and mechanical tap amplitude verification.
How many sieves can be stacked simultaneously?
Up to 20 half-height (25 mm) or 10 full-height (50 mm) 8-inch sieves, depending on sample mass and stack stability requirements.
