WIGGENS WHMIX 1 & WHMIX 1 eco Electromagnetic Induction Magnetic Stirrers

Overview

The WIGGENS WHMIX 1 and WHMIX 1 eco are precision-engineered electromagnetic induction magnetic stirrers designed for demanding laboratory environments in chemistry, biotechnology, and pharmaceutical R&D and quality control. Unlike conventional permanent-magnet or direct-drive stirrers, the WHMIX series employs proprietary contactless electromagnetic induction drive technology—eliminating mechanical wear, brush arcing, and rotor friction. This architecture ensures long-term operational stability, zero maintenance, and consistent torque delivery across the full speed range. The system operates on the principle of induced eddy currents in the stirring bar (typically PTFE- or glass-coated samarium-cobalt or neodymium magnets), generating precise rotational motion without physical coupling between drive unit and vessel. Its sealed, integrated drive motor and stainless-steel housing meet stringent requirements for chemical resistance, thermal stability, and cleanability—making it suitable for use with aggressive solvents, high-viscosity polymer solutions, and corrosive reagents under GLP-compliant workflows.

Key Features

• Contactless electromagnetic induction drive: No moving parts in contact with the drive mechanism—ensures infinite service life and eliminates periodic replacement of bearings or carbon brushes.
• Ultra-flat, seamless ceramic-coated top plate: Provides uniform heat distribution (when used with optional heating modules), resists scratches and chemical etching, and enables easy wipe-down cleaning per ISO 14644 cleanroom protocols.
• Soft-start function: Gradually ramps up magnetic field strength to reliably capture and center stirring bars—even in tall-form vessels or viscous media—reducing splashing and vortex instability.
• Dual-speed programming: Independent setting of start speed and maximum speed allows optimized ramping profiles for sensitive reactions or temperature-sensitive samples.
• Auto-memory function: Stores the most recently used speed and power settings for rapid reactivation—supporting repeatable experimental conditions across shifts or users.
• IP64-rated enclosure: Dust-tight and protected against water splashing from any direction—enabling safe operation in humid environments or near fume hoods and cold rooms.
• Thermally stable stainless-steel chassis: Maintains structural integrity and dimensional accuracy across the full operating temperature range (−10 to +50 °C at ≤80% RH).

Sample Compatibility & Compliance

The WHMIX platform accommodates a broad spectrum of sample types and container geometries—including round-bottom flasks, conical flasks (up to 2 L for WHMIX 1), beakers, and jacketed reactors. Its high-torque low-speed stability supports mixing of non-Newtonian fluids (e.g., hydrogels, cell culture media, silicone oils) and suspensions containing abrasive particles. For regulatory compliance, the device meets IEC 61010-1:2010 safety standards for laboratory electrical equipment and conforms to EMC directive 2014/30/EU. While not intrinsically rated for explosion-proof zones, its spark-free electromagnetic drive makes it preferable over brushed motors in solvent-rich environments. When integrated into validated workflows, the WHMIX series supports audit readiness for FDA 21 CFR Part 11 (with compatible external data loggers) and aligns with ISO/IEC 17025 documentation expectations for equipment qualification (IQ/OQ/PQ).

Software & Data Management

The WHMIX 1 features an integrated bright LED display showing real-time speed (rpm) and selected power level (25/50/75/100%). Though standalone, the device is fully compatible with third-party lab automation systems via analog 0–10 V or 4–20 mA process interfaces (optional adapter required). For digital traceability, users may pair WHMIX units with WIGGENS’ optional USB-enabled data logger (model WL-DL1), enabling timestamped export of speed, duration, and power-state history in CSV format—facilitating adherence to ALCOA+ data integrity principles. All firmware updates are delivered via secure manufacturer portal; no cloud connectivity is embedded, preserving network isolation in secure lab IT infrastructures.

Applications

• Homogenization of multi-phase reaction mixtures in synthetic organic chemistry (e.g., Grignard, Suzuki couplings).
• Long-duration cell culture media preparation under sterile laminar flow hoods—where vibration minimization and thermal neutrality are critical.
• Stabilization of nanoparticle dispersions and colloidal suspensions requiring shear-controlled agitation.
• Extraction and leaching protocols in environmental testing labs (e.g., EPA Method 3050B acid digestion).
• Preparation of calibration standards and reference materials in metrology-grade QC laboratories.
• Integration into automated liquid handling platforms for parallelized assay development.

FAQ

What distinguishes electromagnetic induction drive from conventional magnetic stirrers?
Electromagnetic induction eliminates physical contact between stator and rotor—removing wear mechanisms inherent in rotating magnet assemblies. This yields superior speed stability at low rpm (<200 rpm), higher peak torque, and immunity to demagnetization from heat or aging.
Can WHMIX stirrers be used with heating plates?
Yes—the flat, thermally conductive top plate is compatible with externally mounted heating modules (sold separately); however, WHMIX units themselves do not include built-in heating elements.
Is the WHMIX 1 eco model suitable for GMP environments?
Its stainless-steel construction, IP64 rating, and absence of consumable parts support routine cleaning validation; however, formal GMP qualification requires site-specific IQ/OQ documentation per Annex 15.
Does the device support external speed control via analog signal?
Yes—via optional analog interface module (WIGGENS part #WL-AI1), enabling integration into PLC-controlled reactor systems.
What is the expected service life under continuous operation?
Rated for >50,000 hours MTBF (mean time between failures) based on accelerated lifetime testing per IEC 60068-2-64, assuming ambient conditions within specified temperature/humidity limits.