RETSCH AS 200 BASIC Vibratory Sieve Shaker

Overview

The RETSCH AS 200 BASIC Vibratory Sieve Shaker is an entry-level yet fully functional electromagnetic sieve shaker engineered for precise, reproducible particle size distribution analysis across R&D laboratories, QC/QA departments, and production environments. It operates on the principle of controlled vibratory motion generated by a high-efficiency electromagnetic drive unit, delivering a three-dimensional “throwing” motion—comprising horizontal oscillation, vertical lift, and gentle rotation—that ensures homogeneous sample dispersion across the full active area of each sieve. This kinematic profile significantly enhances separation efficiency, particularly for cohesive, fine, or irregularly shaped particles, and enables reliable results even after short-duration sieving cycles. Unlike mechanical cam-driven or rotary shakers, the electromagnetic actuation system provides stepless, repeatable amplitude control without mechanical wear, contributing to long-term measurement stability and minimal maintenance requirements.

Key Features

• Electromagnetic drive with digital amplitude and time control—enabling precise, operator-independent parameter reproducibility
• 3D motion pattern optimized for uniform particle stratification and effective mesh penetration
• Modular sieve stack design accommodating up to 17 nested sieves (standard configuration supports 9), with maximum stack height of 510 mm
• Dual-mode operation: validated for both dry sieving (ISO 2591-1) and wet sieving (ISO 2591-2), with optional liquid-tight accessories
• Ergonomic, space-efficient housing with integrated clamping mechanism—no tools required for rapid sieve stack assembly/disassembly
• Robust stainless-steel construction compliant with laboratory hygiene standards and compatible with cleanroom handling protocols
• No lubrication or belt replacement required—electromagnetic actuator ensures maintenance-free long-term operation

Sample Compatibility & Compliance

The AS 200 BASIC accommodates a broad range of granular and powdered materials—including metal powders, pharmaceutical excipients, catalysts, ceramics, soils, aggregates, and food ingredients—with particle size distributions spanning 20 µm to 25 mm. Its 3 kg maximum load capacity supports statistically representative sampling per ISO 9276-2 guidelines. The instrument meets key international standards for sieve analysis methodology: ISO 2591-1 (dry sieving), ISO 2591-2 (wet sieving), ASTM E11 (specification for wire cloth and sieves), EN 933-1 (aggregates testing), and ISO 9276-2 (representation of particle size distributions). While the AS 200 BASIC itself does not include built-in audit trail or electronic signature functionality, its manual operation mode remains fully compatible with GLP and GMP workflows when paired with standardized SOPs and paper-based recordkeeping.

Software & Data Management

The AS 200 BASIC operates via an intuitive front-panel interface featuring digital LED displays for real-time monitoring of sieving duration and amplitude level. Although it does not integrate proprietary software or PC connectivity as standard, RETSCH’s optional sieve analysis software (e.g., EVALUATION SOFTWARE for AS series) can be used offline to import manually recorded weight data, calculate cumulative undersize/oversize distributions, generate D10/D50/D90 values, and produce ISO-compliant reports in PDF or Excel format. All data entries remain traceable through user-defined batch IDs and timestamped worksheets—supporting basic 21 CFR Part 11 readiness when implemented within a documented quality management system.

Applications

• Raw material qualification in pharmaceutical manufacturing (e.g., lactose, microcrystalline cellulose)
• Quality verification of additive manufacturing metal powders (Ti-6Al-4V, Inconel 718)
• Particle size grading of construction aggregates and mineral fillers
• R&D screening of catalyst support materials and battery electrode precursors
• Process validation of milling, grinding, and micronization operations
• Environmental sediment analysis under ASTM D422 and ISO 14688-1

FAQ

What is the difference between the AS 200 BASIC and the AS 200 digit?
The AS 200 BASIC features manual amplitude selection and timer control with digital display, while the AS 200 digit adds programmable multi-step methods, automatic start/stop triggering, and RS232 interface for external data logging.
Can the AS 200 BASIC perform wet sieving?
Yes—when equipped with the optional wet sieving kit (including sealed lid, spray nozzle, and drain pan), it complies with ISO 2591-2 for aqueous particle size analysis.
Is calibration required before use?
No routine calibration is mandated; however, periodic verification of timer accuracy and amplitude linearity using RETSCH-certified reference weights and test sieves is recommended per ISO/IEC 17025 internal quality procedures.
What sieve diameters are supported?
Standard compatibility includes 200 mm and 203 mm diameter analytical sieves (ISO 3310-1, ASTM E11); custom adapters are available for 100 mm or 300 mm formats.
Does the instrument meet FDA or EU regulatory requirements for pharmaceutical use?
It satisfies equipment suitability criteria outlined in USP and Ph. Eur. 2.9.33 when operated within validated methods and documented environmental controls—though full 21 CFR Part 11 compliance requires supplementary procedural controls and documentation practices.