WIGGENS WHMIX 1 XL / WHMAX MIX Integrated High-Power Magnetic Stirrer

Overview

The WIGGENS WHMIX 1 XL and WHMAX MIX are integrated high-power magnetic stirrers engineered for demanding laboratory and pilot-scale mixing applications requiring robust torque transmission, long-term stability, and operational safety. Unlike conventional benchtop magnetic stirrers, these units employ a high-efficiency permanent magnet coupling system capable of transmitting rotational force across distances up to 60 mm—enabling effective agitation in vessels with thick glass walls, double-jacketed configurations, or insulated bases where standard stirrers fail. The WHMAX MIX variant delivers up to 40 W of continuous drive power, supporting viscous media (e.g., polymer solutions, slurries, pastes) and large-volume homogeneous mixing up to 150 L. Both models feature a fully sealed stainless-steel housing rated IP64, ensuring resistance to splashes, dust ingress, and routine aqueous cleaning—making them suitable for regulated environments including GLP-compliant laboratories and quality control facilities operating under ISO/IEC 17025 frameworks.

Key Features

• Integrated controller-and-motor architecture minimizes footprint and eliminates cable management complexity.
• High-torque magnetic coupling enables reliable stirring through vessel walls up to 60 mm thick—ideal for jacketed reactors, vacuum flasks, and insulated containers.
• Programmable soft-start (10–60 s adjustable) ensures precise capture, centering, and acceleration of stir bars across wide viscosity and volume ranges—from low-viscosity solvents to non-Newtonian gels.
• QuickStop emergency braking halts rotation within milliseconds upon user command or system fault detection, enhancing operator safety and sample integrity.
• WHMIX 1 XL includes MIX Watch—a real-time monitoring algorithm that detects stir bar misalignment, stalling, or erratic rotation; automatically initiates repositioning and restart sequences without manual intervention.
• Digital display shows real-time speed, soft-start progress, intermittent cycle status, and error codes for traceable operation.
• Intermittent stirring mode supports controlled reaction kinetics, thermal equilibration, or sediment resuspension with programmable on/off intervals (0–240 s).

Sample Compatibility & Compliance

These stirrers accommodate standard PTFE- or PTFE-coated stir bars (diameters 10–30 mm, lengths 40–120 mm) and support glass, stainless-steel, and borosilicate reactor vessels ranging from 500 mL to 150 L. The WHMAX MIX is validated for use with jacketed bioreactors, crystallization vessels, and API synthesis reactors requiring sustained agitation under inert atmospheres. All units comply with IEC 61010-1:2010 for electrical safety in laboratory equipment and meet EMC requirements per EN 61326-1:2013. The IP64-rated enclosure satisfies environmental protection needs in humid or washdown-intensive settings, and the absence of exposed electronics permits routine decontamination per SOPs aligned with FDA 21 CFR Part 11 data integrity expectations when used with compliant logging systems.

Software & Data Management

While standalone operation requires no software, both models support optional RS-232 or USB-to-serial interfaces (via external adapter) for integration into centralized lab automation platforms. When connected, speed setpoints, soft-start duration, intermittent cycle parameters, and event logs—including QuickStop triggers and MIX Watch interventions—can be timestamped and exported in CSV format. Audit trails generated during extended unattended runs (e.g., overnight crystallizations or enzymatic digestions) align with GLP documentation standards. Firmware updates are performed via secure bootloader protocols, preserving calibration integrity and preventing unauthorized configuration changes.

Applications

• Large-volume buffer preparation and media formulation in bioprocessing labs (up to 150 L in single-use or stainless-steel tanks).
• Homogenization of high-viscosity pharmaceutical suspensions and ointment bases under GMP conditions.
• Controlled agitation during solvent-free organic synthesis in thick-walled pressure reactors.
• Long-duration cell culture media equilibration with dissolved gas stabilization.
• Crystallization process development requiring precise intermittent agitation to modulate nucleation kinetics.
• Environmental testing of soil slurries and wastewater samples per ASTM D5258 and EPA Method 1681 protocols.

FAQ

What is the maximum recommended vessel wall thickness for reliable coupling?
For optimal torque transfer, the WHMAX MIX supports glass or stainless-steel walls up to 60 mm thick—verified using standardized borosilicate vessels with uniform wall geometry.
Can the stirrer operate continuously for 72+ hours?
Yes—both models are thermally stabilized for uninterrupted operation at rated load; WHMAX MIX includes thermal cut-off protection at 85 °C internal temperature.
Is MIX Watch available on both models?
No—MIX Watch is exclusive to the WHMIX 1 XL model. The WHMAX MIX prioritizes raw torque output and thermal resilience over autonomous monitoring features.
Does the unit retain settings after power loss?
Yes—last-used speed, soft-start time, and intermittent interval are retained in non-volatile memory and restored on power-up.
Are replacement stir bars and mounting accessories available?
WIGGENS offers certified stir bars (catalog numbers WH-BAR-15, WH-BAR-25, WH-BAR-30), silicone isolation mats (WH-MAT-IP64), and custom-height riser stands compatible with both models.