WIGGENS WHMIX drive6 Submersible Electromagnetic Induction Stirrer

Overview

The WIGGENS WHMIX drive6 is a high-integrity, submersible electromagnetic induction stirrer engineered for continuous, maintenance-free operation in demanding laboratory and industrial environments. Unlike conventional permanent-magnet or motor-driven stirrers, the WHMIX drive6 employs contactless electromagnetic coupling—generating torque via time-varying magnetic fields without mechanical transmission components. This eliminates wear-prone bearings, shaft seals, and gearboxes, ensuring long-term reliability and zero lubrication requirements. Its fully sealed stainless-steel housing (IP68 rated) enables direct immersion in water baths, oil baths, CO₂ incubators, and even controlled-temperature ovens—operating continuously at ambient temperatures from –10 °C to +50 °C (standard configuration), with HT-series variants supporting up to +95 °C in liquid media and +200 °C in dry-heated enclosures. Designed for integration into automated workflows, it supports remote control, real-time monitoring, and audit-ready data logging when paired with optional digital interfaces.

Key Features

• Electromagnetic induction drive: No physical contact between actuator and stir bar—zero mechanical wear, no maintenance intervals.
• Submersible architecture: Fully sealed IP68 enclosure permits direct immersion in aqueous, oily, or humid environments; compatible with CO₂ incubators and temperature-controlled chambers.
• Soft-start programmability: Adjustable 10–60 s ramp-up ensures reliable capture, centering, and acceleration of stir bars across wide viscosity and volume ranges (1–3000 mL).
• QuickStop™ emergency braking: Halts rotation within milliseconds upon manual activation or system-triggered fault condition; retains last operational parameters automatically.
• Real-time speed deviation monitoring: Compares actual vs. setpoint rotational performance and triggers audible/visual alarm if tolerance thresholds are exceeded—critical for GLP/GMP-compliant processes.
• Modular interface support: Optional analog (0–10 V / 4–20 mA) and digital (RS232, USB, Ethernet) outputs enable seamless integration with SCADA, LIMS, or custom control platforms.
• MIX Watch™ intelligent stir bar supervision (optional): Detects misalignment, stalling, or erratic motion—automatically re-centers and re-initiates stirring without user intervention, ideal for unattended overnight runs or opaque vessels.

Sample Compatibility & Compliance

The WHMIX drive6 accommodates standard PTFE- or glass-coated stir bars (diameters 6–12 mm, lengths 20–60 mm) and delivers consistent torque transfer across low-viscosity solvents (e.g., water, ethanol) and high-viscosity media (up to ~5000 mPa·s, depending on vessel geometry and bar size). Its stainless-steel construction complies with ISO 8573-1 for compressed air purity (where applicable in cleanroom installations) and meets material biocompatibility requirements per USP Class VI. While not intrinsically rated for hazardous areas by default, explosion-proof variants are available upon request—certified to ATEX Directive 2014/34/EU (Category 2G, Zone 1) and IECEx standards. The device operates without self-heating under continuous load, satisfying thermal stability criteria for ISO/IEC 17025-accredited calibration laboratories.

Software & Data Management

Although the WHMIX drive6 operates as a standalone instrument with intuitive front-panel controls and LED status indicators, its optional digital interfaces facilitate full traceability and regulatory compliance. When connected via RS232 or Ethernet, third-party software—or WIGGENS’ custom-developed control suite—can record timestamped speed profiles, soft-start durations, deviation events, and emergency stop logs. Audit trails adhere to FDA 21 CFR Part 11 requirements when deployed with electronic signature-enabled systems. Data export formats include CSV and XML, enabling direct ingestion into ELN (Electronic Lab Notebook) platforms or statistical process control (SPC) dashboards. Firmware updates are delivered via USB or network push, preserving version history and change logs per ISO 13485 documentation protocols.

Applications

• Long-duration cell culture agitation in CO₂ incubators—no thermal drift or condensation risk due to absence of internal heat generation.
• Homogenization of polymer solutions, hydrogels, and nanoparticle suspensions requiring stable shear profiles over hours or days.
• In-line blending in pilot-scale bioreactor feed preparation, where submersible operation avoids contamination pathways associated with top-entry drives.
• Calibration of viscometers and rheometers using standardized reference fluids under thermostatically controlled bath conditions.
• Automated sample preparation workflows integrated with robotic liquid handlers—leveraging analog/digital I/O for synchronized start/stop commands.
• Material compatibility testing in accelerated aging studies (e.g., ASTM D570), where uninterrupted stirring at elevated temperatures is required.

FAQ

Can the WHMIX drive6 be used inside a CO₂ incubator without affecting humidity or gas composition?
Yes—the unit generates negligible heat during operation and contains no outgassing materials; it has been validated for continuous use in standard CO₂ incubators (37 °C, 5% CO₂, >95% RH) without altering chamber conditions.
Is the IP68 rating certified to IEC 60529, and does it cover prolonged immersion?
Yes—IP68 certification per IEC 60529 confirms protection against continuous immersion in water at depths up to 1.5 m for 30 minutes; extended submersion is supported under normal lab-use conditions with periodic visual inspection.
Does MIX Watch™ require special stir bars or additional hardware?
No—MIX Watch™ uses built-in Hall-effect sensors and proprietary signal processing to monitor magnetic field harmonics; it works with all commercially available coated stir bars without modification.
What is the maximum viscosity this model can handle reliably at 3000 mL volume?
Under typical cylindrical vessel geometry (diameter ≈ 100 mm), stable stirring is achievable up to approximately 4000–5000 mPa·s; optimal performance requires selection of appropriately sized stir bars (e.g., 10 × 40 mm) and verification via shear rate profiling.
Are firmware updates provided free of charge, and how are they verified for integrity?
Yes—WIGGENS provides lifetime firmware updates at no cost; each release includes SHA-256 checksums and digital signatures to ensure authenticity and prevent unauthorized modification.