WIGGENS WS-350W Orbital-Shaking Platform

Overview

The WIGGENS WS-350W Orbital-Shaking Platform is an engineered solution for low-shear, precise sample agitation in life science laboratories. Designed around a dual-mode oscillation architecture—supporting both gentle rocking (tilt-angle adjustable) and orbital shaking—the instrument delivers reproducible motion profiles essential for sensitive biological workflows. Its core mechanism employs a brushless DC motor coupled with a precision cam-driven eccentric drive system, ensuring consistent rotational torque across the full 8–100 rpm range without mechanical backlash or speed drift. Unlike conventional shakers relying on simple eccentric weights, the WS-350W integrates dynamic inertia compensation to maintain platform stability under variable load conditions (up to 5 kg), minimizing resonance transmission to adjacent equipment and lab benches. The device operates within ambient temperature ranges of 5–40°C and relative humidity ≤80% non-condensing—meeting typical ISO 15195-compliant laboratory environmental specifications.

Key Features

• Two configurable oscillation modes: Rocking (0°–13° tilt angle, 8–100 rpm) and orbital shaking (fixed horizontal plane, 8–100 rpm), selectable via intuitive TFT touchscreen interface
• Brushless DC motor providing silent operation (20,000 hours MTBF)
• Smooth-start acceleration profile eliminates abrupt torque application—critical for fragile samples such as primary cell suspensions, antibody-coated beads, or pre-cast gels
• TFT display with 1-rpm resolution and real-time countdown timer (1 min – 99 h 59 min), supporting pause/resume functionality without parameter reset
• Integrated overload detection circuit halts operation and displays error code if load exceeds 5 kg or mechanical resistance exceeds design threshold
• Ergonomic tray assembly (W5011102) includes textured white corrugated silicone mat and adjustable securing straps to prevent tube migration during prolonged runs
• Structural housing composed of chemically resistant polypropylene (PP), PET structural inserts, and powder-coated steel frame—compliant with IEC 61010-1 safety standards for laboratory equipment

Sample Compatibility & Compliance

The WS-350W accommodates standard laboratory vessels without adapter kits: 15 mL and 50 mL conical tubes, 100–500 mL Erlenmeyer flasks, 6–96-well microplates, Petri dishes (up to 150 mm diameter), and glass staining trays. Its low-frequency operational envelope (particularly stable at 10–25 rpm) supports protocols requiring minimal shear stress—including DNA extraction lysis steps, Southern/Northern blot membrane hybridization, gel destaining, immunostaining incubations, and blood sample homogenization prior to centrifugation. Device firmware adheres to GLP-relevant operational logging principles: all timer starts/stops, speed changes, and fault events are timestamped internally (non-volatile memory). While not FDA 21 CFR Part 11 certified out-of-the-box, audit trails can be exported manually via USB for inclusion in quality documentation packages aligned with ISO/IEC 17025 or CAP accreditation frameworks.

Software & Data Management

The WS-350W operates as a standalone instrument with no proprietary software dependency. All configuration and runtime data reside locally on the embedded controller. Timer logs and error history (e.g., “OVERLOAD_TRIP_20240517_14:22:08”) are stored in plain-text CSV format accessible via micro-USB port—enabling direct import into LIMS or ELN systems. No cloud connectivity or remote access capabilities are implemented, preserving data sovereignty and simplifying IT security validation in regulated environments. Firmware updates (if released) require manual download from WIGGENS’ official support portal and local installation via USB stick—ensuring version control traceability per internal SOPs.

Applications

• Low-speed mixing of viscous reagents in molecular biology workflows (e.g., agarose gel loading buffer preparation)
• Hybridization incubations for nucleic acid probes on nylon or nitrocellulose membranes
• Gel electrophoresis post-staining wash steps requiring uniform agitation without bubble formation
• Cell culture flask coating procedures (e.g., collagen or fibronectin dispersion)
• Clinical specimen homogenization prior to automated immunoassay platforms
• Environmental microbiology: gentle resuspension of biofilm fragments from filter membranes

FAQ

Is the WS-350W suitable for use inside refrigerated or CO₂ incubators?
No. The unit is rated for ambient laboratory use only (5–40°C, non-condensing). Enclosure in humidified or temperature-controlled chambers may compromise motor cooling and electronics reliability.
Can multiple trays be stacked or used simultaneously?
No. The WS-350W is configured for single-platform operation. Stacking violates load distribution specifications and voids safety certification.
Does the device meet electromagnetic compatibility (EMC) requirements for clinical labs?
Yes. It complies with EN 61326-1:2013 for laboratory equipment, including radiated/conducted emissions and electrostatic discharge immunity (IEC 61000-4-2 Level 3).
What is the calibration interval recommendation?
WIGGENS recommends annual verification of speed accuracy using an external optical tachometer traceable to NIST standards. No user-accessible calibration routine is provided.
Are replacement trays or specialized mats available?
Yes. Optional accessories include stainless-steel trays (W5011103), autoclavable silicone mats (W5011104), and microplate-specific clamping frames (W5011105), all referenced in the official WIGGENS catalog under accessory code prefix W5011xxx.