WIGGENS WSI-50R Low-Temperature Stackable Orbital Incubator Shaker

Overview

The WIGGENS WSI-50R is a precision-engineered low-temperature stackable orbital incubator shaker designed for demanding life science applications requiring simultaneous temperature control, uniform oscillation, and extended operational stability. Built upon a robust German-engineered platform, it integrates Peltier-based cooling with high-efficiency forced-air circulation to achieve sub-ambient temperatures down to RT−15°C (at 25°C ambient), enabling reliable cultivation of psychrophilic microorganisms, cold-adapted enzymes, and temperature-sensitive mammalian suspension cultures. Its orbital shaking mechanism employs electromagnetic drive technology—ensuring consistent motion profile, minimal mechanical wear, and acoustic noise below 55 dB(A) at 200 rpm—critical for long-term unattended operation in shared core facilities and GLP-compliant labs. The unit’s modular architecture supports vertical stacking of two identical chambers without external support frames, optimizing floor space while maintaining independent thermal and mechanical integrity per layer.

Key Features

• Integrated Peltier cooling system enabling precise sub-ambient operation (RT−15°C to 60°C) with ±0.1°C temperature accuracy and ±0.5°C intra-chamber uniformity
• Electromagnetic orbital drive delivering stable 20–300 rpm rotation with ±1% full-scale speed accuracy and fixed 25 mm amplitude
• Stackable dual-layer configuration (400 × 600 × 1236 mm total height) using factory-aligned mechanical coupling—no additional mounting hardware required
• Double-glazed tempered glass door with interior LED illumination and reversible left/right hinge orientation (default: left-hinged)
• Stainless steel 304 chamber interior with seamless welds and rounded corners for autoclavable cleaning and microbial contamination control
• Intelligent safety interlock: automatic oscillation halt and LED activation upon door opening; independent overtemperature cutoff circuit
• Real-time monitoring and alarm triggers for temperature deviation (>±2°C), speed drift (>±5 rpm), and door-open events
• Front-panel digital interface with dedicated parameter keys, real-time display of setpoint/actual values, and non-volatile memory for last-used settings

Sample Compatibility & Compliance

The WSI-50R accommodates standard laboratory vessels up to 2 L volume—including Erlenmeyer flasks (100–2000 mL), baffled bottles, and culture tubes—secured on a 300 × 330 mm stainless steel platform with universal clamping options. Its chamber geometry and airflow design comply with ISO 13408-1 (aseptic processing) and support adherence to USP for cell culture equipment qualification. Temperature and speed performance are validated per ASTM E2500-13 (good practice for verification of pharmaceutical equipment) and meet baseline requirements for FDA 21 CFR Part 11 data integrity when paired with optional external logging systems. The unit carries CE marking under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU.

Software & Data Management

While the WSI-50R operates via standalone front-panel controls without embedded PC connectivity, its analog output signals (0–10 V for temperature, 0–5 V for speed) enable integration into centralized building management or LIMS environments via third-party DAQ modules. Optional RS-485 Modbus RTU interface (add-on module) supports remote parameter readout and basic setpoint adjustment—compatible with LabVIEW, MATLAB, and industrial SCADA platforms. All alarm events are timestamped and latched until acknowledged, supporting audit-ready documentation for GLP/GMP workflows. Firmware updates are performed via secure USB port with cryptographic signature verification.

Applications

• Low-temperature bacterial and yeast fermentation (e.g., Pseudomonas putida, Saccharomyces cerevisiae cryo-cultivation)
• Suspension culture of insect and mammalian cells (CHO, HEK293, Sf9) under controlled hypothermic conditions (27–32°C)
• Enzyme kinetics studies requiring stable sub-30°C reaction environments
• DNA library preparation workflows involving temperature-sensitive ligase or polymerase steps
• Biopharmaceutical process development where thermal gradient minimization across multi-vessel arrays is critical
• Environmental microbiology: enrichment of cold-water isolates from marine or alpine samples

FAQ

What is the minimum achievable temperature at 25°C ambient?
The WSI-50R achieves a verified minimum of 10°C (RT−15°C) under standard laboratory conditions (25°C, 50% RH, no direct solar load). Performance may vary slightly at higher ambient temperatures or elevated humidity.
Can the unit operate continuously for 72+ hours?
Yes—designed for uninterrupted operation with thermal overload protection, redundant fan control, and sealed electromagnetic drive components rated for >20,000 hours MTBF.
Is validation documentation available?
Factory-issued IQ/OQ protocols compliant with ASTM E2500-13 are provided upon request; PQ execution requires user-defined acceptance criteria and calibrated reference standards.
Does the oscillation stop immediately upon door opening?
Yes—the safety circuit interrupts power to the drive coil within <100 ms of door switch activation, and internal LEDs illuminate automatically.
Are custom shelving or flask holders available?
WIGGENS offers OEM-compatible accessories including spring-loaded universal clamps, silicone-coated platform inserts, and baffled flask support racks—all traceable to material certifications (RoHS, REACH).