WIGGENS WHMAX MIX Integrated High-Power Magnetic Stirrer

Overview

The WIGGENS WHMAX MIX is an integrated high-power magnetic stirrer engineered for demanding laboratory and pilot-scale mixing applications requiring robust torque delivery, long-term stability, and operational safety. Unlike conventional benchtop stirrers, it employs a direct-coupled electromagnetic drive architecture with enhanced magnetic coupling efficiency—enabling reliable agitation of viscous or dense media in vessels with thick or double-walled bottoms (up to 60 mm total wall thickness). Its core principle relies on precise rotational transfer of kinetic energy via a high-field permanent magnet array, eliminating mechanical shafts and seals while maintaining consistent angular velocity across wide viscosity and volume ranges. Designed for continuous unattended operation—including overnight protocols—the WHMAX MIX meets the functional and safety expectations of GLP-compliant laboratories and regulated industrial R&D environments.

Key Features

• Integrated controller-and-drive unit design minimizes footprint (265 × 320 × 68 mm) and simplifies setup without external cabling or separate power modules.
• 40 W electromagnetic drive delivers sustained torque for stirring volumes up to 150 L—even in high-viscosity liquids (e.g., polymer solutions, slurries, or cell culture media).
• Adjustable soft-start (10–60 s) ensures controlled capture, centering, and acceleration of stir bars under variable load conditions—reducing splashing and vortex instability.
• QuickStop emergency braking halts rotation within <1 s upon manual activation or system fault detection, preserving sample integrity and operator safety.
• IP64-rated stainless steel housing provides dust-tightness and resistance to water splashes, enabling easy decontamination and compatibility with humid or washdown lab environments.
• Digitally displayed real-time speed and soft-start countdown support precise protocol replication and audit-ready operation.
• Intermittent mode (0–240 s cycle timing) enables pulsed agitation for heat-sensitive reactions or gas dissolution control.

Sample Compatibility & Compliance

The WHMAX MIX supports standard PTFE- or glass-coated stir bars (diameter ≥10 mm, length ≥40 mm) and accommodates vessel geometries including round-bottom flasks, jacketed reactors, and insulated bioreactor vessels. Its 60 mm effective coupling depth allows use with borosilicate glass, stainless steel, or composite-walled containers—ideal for temperature-controlled synthesis or crystallization workflows. The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and conforms to EN 61326-1:2013 for electromagnetic compatibility (EMC). While not intrinsically rated for explosive atmospheres, its sealed construction and absence of sparking components make it suitable for non-hazardous chemical handling per GHS classification guidelines.

Software & Data Management

The WHMAX MIX operates as a standalone instrument with no embedded software stack or network interface. All parameter settings—including speed, soft-start duration, intermittent interval, and QuickStop activation—are retained in non-volatile memory after power cycling. No firmware updates or PC connectivity are required; however, users may document operational parameters manually or integrate usage logs into broader LIMS or ELN systems via timestamped procedural entries. For facilities subject to FDA 21 CFR Part 11 requirements, the device supports traceability through operator-defined SOP adherence and physical record retention—though it does not provide electronic audit trails, digital signatures, or role-based access control.

Applications

• Scale-up synthesis in 5–150 L reaction vessels under reflux or inert atmosphere.
• Homogenization of high-viscosity formulations (e.g., adhesives, pastes, hydrogels) in pharmaceutical process development.
• Long-duration cell suspension culture in stirred-tank bioreactors with opaque or jacketed walls.
• Accelerated solvent extraction and solid-liquid dispersion in environmental or materials testing labs.
• Calibration and validation of inline viscometers or pH probes requiring stable, bubble-free agitation.
• Teaching labs emphasizing torque-load relationships, fluid dynamics principles, and safe unattended operation protocols.

FAQ

What is the maximum vessel bottom thickness compatible with the WHMAX MIX?
The magnetic coupling system is rated for effective transmission through up to 60 mm total wall thickness—including double-jacketed or vacuum-insulated configurations.
Does the WHMAX MIX support external analog or digital control signals?
No—it is a fully self-contained unit with no RS-232, USB, or 0–10 V input capability. All adjustments are made via front-panel controls.
Can the device be used in cold rooms or incubators?
Yes, provided ambient temperature remains between −10 °C and +50 °C at relative humidity ≤80%. Condensation must be prevented on the housing surface.
Is the WHMAX MIX compliant with ISO/IEC 17025 calibration requirements?
While the unit itself is not a measuring instrument, its speed output is factory-verified against traceable standards; users may perform periodic verification using a calibrated tachometer per ISO/IEC 17025 Clause 6.5.
What maintenance is required for long-term reliability?
No routine internal maintenance is specified. Wipe the stainless steel surface with ethanol or mild detergent; avoid abrasive cleaners. Inspect stir bar condition before each use and replace if chipped or demagnetized.