WIGGENS WS-50D / WS-50DR Standard Orbital & Reciprocal Shaker

Overview

The WIGGENS WS-50D and WS-50DR are precision-engineered standard shakers designed for routine laboratory applications requiring reliable, repeatable motion control in incubation, solubilization, mixing, and cell culture preparation. The WS-50D operates on an orbital (circular) motion principle—ideal for uniform suspension of microbial cultures, ELISA plate washing, and gentle sample homogenization—while the WS-50DR employs reciprocal (linear back-and-forth) oscillation, optimized for applications demanding higher shear force, such as tissue dissociation, viscous sample agitation, or sediment resuspension. Both models feature a rigid aluminum-alloy platform mounted on high-damping elastomeric supports to minimize energy loss and ensure mechanical stability across the full speed range. The shakers comply with IEC 61010-1 safety standards for laboratory electrical equipment and are constructed to meet long-term operational demands under GLP-compliant environments.

Key Features

• Dual-mode configuration: Select between orbital (WS-50D) and reciprocal (WS-50DR) motion profiles based on application-specific fluid dynamics requirements.
• Precision speed control: Digital PID-regulated motor delivers consistent rotational or linear velocity across the entire operating range, with accuracy maintained at ±2 rpm at 100 rpm reference point.
• Extended programmable timing: Independent delay-on/delay-off scheduling (1 minute to 999 hours 59 minutes) enables unattended overnight or multi-day protocols; configurable pause intervals (10 seconds to 59 minutes 59 seconds) support staged agitation sequences.
• High-visibility LED interface: Large-format, high-luminance display ensures legibility under varied ambient lighting conditions—including low-light biosafety cabinets or cold-room environments.
• Modular platform compatibility: Standard 320 × 260 mm tray accommodates common labware including flasks (up to 2 L), multi-well plates, Petri dishes, and custom fixtures via optional clamps and universal holders.
• Thermally stable housing: Die-cast aluminum chassis and heat-dissipating ventilation design prevent internal temperature drift during extended operation, supporting integration with external incubators or ambient benchtop use.

Sample Compatibility & Compliance

The WS-50D/WS-50DR accommodates a broad spectrum of sample containers—from conical flasks and centrifuge tubes to microtiter plates and custom reaction vessels—without requiring recalibration. Load capacity is rated for up to 5 kg evenly distributed across the platform. Units conform to ISO/IEC 17025 calibration traceability guidelines when operated within specified environmental conditions (15–30 °C, <80% RH non-condensing). While not intrinsically rated for Class II biological safety cabinets, they are routinely deployed in BSL-2 laboratories under validated SOPs. Documentation packages include CE marking certificates, RoHS compliance statements, and factory calibration reports aligned with DIN EN ISO 9001 quality management systems.

Software & Data Management

These shakers operate as standalone instruments with no embedded software or network connectivity. All parameter settings—including speed, amplitude mode (where applicable), timer configurations, and pause logic—are stored in non-volatile memory and retained after power cycling. For audit-trail compliance in regulated environments (e.g., pharmaceutical QC labs), users may integrate the devices into broader Laboratory Information Management Systems (LIMS) via external time-stamped logging using external USB data loggers or PLC-controlled relay triggers. No FDA 21 CFR Part 11 electronic signature capability is provided natively, as the units lack user authentication or electronic record generation functionality—consistent with their classification as Class I general-purpose laboratory hardware per ICH Q7 and USP .

Applications

• Microbial growth enhancement in liquid media (E. coli, yeast, mammalian suspension cells)
• Antibody-antigen binding kinetics in immunoassay development
• Extraction efficiency optimization for solid-phase extraction (SPE) and solvent-based analyte recovery
• Pre-analytical sample homogenization prior to HPLC, GC, or mass spectrometry workflows
• Buffer equilibration and reagent mixing in molecular biology and protein purification pipelines
• Quality control testing of viscosity-modified formulations in cosmetics and pharmaceutical suspensions

FAQ

What is the difference between orbital and reciprocal motion in this shaker series?

Orbital motion generates a smooth circular path ideal for gentle, uniform mixing—especially critical for cell cultures and low-shear applications. Reciprocal motion produces linear back-and-forth displacement, delivering higher mechanical energy transfer suitable for dense or heterogeneous samples.
Can the amplitude be adjusted on the WS-50DR model?

The mechanical amplitude is fixed at 20 mm for both models. However, the WS-50DR offers two selectable speed-amplitude pairings: up to 400 rpm at 14 mm effective stroke or up to 500 rpm at 8 mm effective stroke—achieved via internal cam-profile switching, not physical adjustment.
Is the unit compatible with external temperature-controlled enclosures?

Yes. The compact footprint (355 × 375 × 140 mm) and low heat dissipation (<15 W idle, <45 W max) allow safe placement inside refrigerated incubators, CO₂ chambers, or environmental test chambers—provided adequate airflow clearance (≥50 mm on all sides) is maintained.
Does the shaker support GLP-compliant operation?

While the device itself does not generate electronic audit trails, its stable performance, calibrated speed accuracy, and retention of user settings post-power-loss support GLP-aligned procedural documentation when paired with lab-defined calibration schedules and maintenance logs.
Are replacement platforms or specialized clamps available?

Yes. WIGGENS offers a full catalog of accessories—including universal flask clamps, microplate holders, tube racks, and custom-machined trays—under part numbers referenced in the official WIGGENS Accessories Manual v3.2 (2023).