ZWY-304 Orbital Decolorizing Shaker

Overview

The ZWY-304 Orbital Decolorizing Shaker is a compact, benchtop orbital shaker engineered for precise, low-shear agitation in temperature-controlled environments—including incubators, cold rooms, and refrigerated chambers. Designed specifically for life science laboratories engaged in molecular biology, protein biochemistry, and nucleic acid analysis, the instrument employs controlled orbital motion (circular trajectory with Φ30 mm amplitude) to ensure uniform mixing of gels, membranes, and solution-phase samples without mechanical stress or splashing. Its brushless DC motor delivers stable rotational output across the full speed range (30–300 rpm), with ±1 rpm accuracy maintained under variable load conditions. The microprocessor-based PID controller continuously monitors ambient thermal fluctuations and dynamically adjusts drive parameters to sustain consistent oscillation performance—critical for reproducible staining, destaining, hybridization, and immunodetection workflows.

Key Features

• Brushless DC motor architecture ensures >20,000-hour service life with zero maintenance requirements and minimal electromagnetic interference—ideal for sensitive electrophoresis and blotting setups.
• PID-regulated microprocessor controller with environmental scan logic adapts real-time to ambient temperature shifts (5–50 °C), preserving speed stability and minimizing thermal drift during extended runs.
• Backlit LCD interface displays both setpoints (speed, time) and live operational parameters (actual rpm, elapsed time, remaining time), supporting intuitive operation under low-light lab conditions.
• Comprehensive safety and continuity protocols include power-loss recovery (auto-resume from last saved state after mains interruption), parameter encryption (prevents unauthorized configuration changes), and non-volatile memory for up to 10 user-defined protocols.
• Extended 500-hour timer supports unattended overnight and multi-day experiments; endpoint triggers simultaneous audible beep and LED flash for immediate operator notification.
• Streamlined chassis (400 × 350 × 190 mm) and optimized weight distribution (25.2 kg net) enable secure placement on vibration-dampened benches, inside refrigerated cabinets (≥100 L internal volume), or stacked configurations with compatible incubators.

Sample Compatibility & Compliance

The ZWY-304 accommodates standard electrophoretic formats including mini-gel cassettes (e.g., Bio-Rad Mini-PROTEAN, Thermo Fisher Novex), polyacrylamide and agarose slabs (up to 20 × 20 cm), nitrocellulose and PVDF membranes (up to 25 × 30 cm), and multi-well plates (6-/12-/24-well). Its orbital motion minimizes edge shear and gel fracture risk—particularly critical for fragile SDS-PAGE gels and RNA blots. The unit complies with IEC 61010-1:2010 for laboratory electrical equipment safety and meets EMC directive 2014/30/EU for electromagnetic compatibility. While not certified for GMP manufacturing environments, its parameter logging, encryption, and power-failure resilience support GLP-aligned documentation practices per ISO/IEC 17025:2017 Annex A.4 requirements for equipment qualification in analytical labs.

Software & Data Management

The ZWY-304 operates as a standalone instrument with no external software dependency. All operational data—including start time, duration, final speed, and power interruption events—are retained in non-volatile memory and accessible via LCD recall. While it lacks USB or Ethernet connectivity, its parameter encryption and audit-ready timer logs satisfy baseline traceability needs for academic research, clinical diagnostics R&D, and preclinical assay development. For labs requiring electronic records, integration with LIMS systems can be achieved via optional RS-232 serial interface modules (sold separately), enabling timestamped export of run metadata compliant with FDA 21 CFR Part 11 Annex 11 principles when paired with validated middleware.

Applications

• Electrophoretic gel processing: Coomassie Brilliant Blue and silver nitrate staining/destaining, fixation, and post-electrophoresis equilibration.
• Membrane-based assays: Pre-hybridization blocking, DNA/RNA probe hybridization (Southern/Northern), antibody incubation (Western), and chemiluminescent substrate development on nitrocellulose or PVDF.
• Radiographic film handling: Controlled agitation during X-ray film development, fixing, and washing steps in autoradiography workflows.
• Cell culture support: Gentle suspension of adherent cell lines during trypsinization or media exchange in low-temperature conditions (e.g., primary neuron maintenance at 4 °C).
• Antigen-antibody binding kinetics: Facilitation of equilibrium binding in ELISA plate-based assays where orbital motion enhances surface contact without foaming.

FAQ

Can the ZWY-304 operate inside a standard 4 °C refrigerator?
Yes—the unit is rated for ambient operation between 5 °C and 50 °C and features natural convection cooling; no forced-air vents or external exhaust are required.
Is the platform compatible with universal clamps for microtiter plates?
Yes—standard 6-, 12-, and 24-well plate clamps, as well as gel trays and membrane frames, are available as accessories and mount securely to the 330 × 350 mm platform.
Does the timer retain settings after a full power cycle?
Yes—non-volatile memory preserves all user-configured parameters, including speed, time, and encryption status, even after complete power disconnection.
What safety certifications does this model hold?
It conforms to IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and EN 61326-1:2013 (EMC for Laboratory Equipment).
Can multiple ZWY-304 units be synchronized for parallel runs?
No—each unit operates independently; synchronization requires external master-clock triggering via optional relay interface (not included).