WIGGENS MIXdrive 1 XS Electromagnetic Induction Magnetic Stirrer

Overview

The WIGGENS MIXdrive 1 XS is an ultra-compact, electromagnetic induction–driven magnetic stirrer designed for integration into confined laboratory environments—including CO₂ incubators, environmental chambers, drying ovens, and submerged water or oil baths. Unlike conventional motor-driven stirrers with mechanical shafts and carbon brushes, the MIXdrive 1 XS employs contactless electromagnetic coupling to rotate magnetic stir bars—eliminating wear, friction, and maintenance requirements entirely. Its operation relies on a precisely tuned high-frequency alternating magnetic field generated within a hermetically sealed stainless-steel housing, inducing torque in ferromagnetic stir elements without physical transmission components. This principle ensures long-term stability, zero particulate generation, and immunity to condensation or thermal drift—critical for sterile cell culture workflows, temperature-sensitive enzymatic reactions, and GLP-compliant sample preparation.

Key Features

• Single-position electromagnetic drive with 100% brushless, gearless, and seal-free operation—designed for >10,000 hours of continuous service life without degradation in torque consistency.
• IP68-rated fully encapsulated stainless-steel housing (standard version) or high-temperature alloy enclosure (HT version), enabling full submersion in aqueous or silicone oil baths and operation inside humidified incubators or dry-heating ovens.
• Thermal resilience: Standard variant supports ambient operation from −10 °C to +50 °C; HT variant extends operational envelope to +200 °C in air and +95 °C under immersion—validated per IEC 60529 and DIN EN 60529 standards.
• Ultra-low profile (18 mm height) and footprint (48 × 48 mm) optimized for integration beneath shaker platforms, inside glove boxes, or within multi-layer bioreactor stacks.
• Constant-speed control architecture maintains rotational stability across viscosity ranges (1–1,000 mPa·s) and volumes (1–1,000 mL), with no speed droop or oscillation—even at low RPM settings (<100 rpm).
• 48 VDC low-voltage operation complies with SELV (Safety Extra-Low Voltage) requirements per IEC 61000-6-3, minimizing electromagnetic interference in sensitive detection setups.

Sample Compatibility & Compliance

The MIXdrive 1 XS is compatible with standard PTFE- or glass-coated magnetic stir bars (3–30 mm length), including custom geometries for narrow vessels such as cuvettes, microcentrifuge tubes, and jacketed reactor inserts. Its non-invasive drive mechanism avoids contamination risks associated with rotating seals or external motors—making it suitable for ISO 13485–certified medical device manufacturing environments and USP –compliant aseptic compounding suites. The device meets CE marking requirements under the EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. For regulated QC/QA laboratories, its stable output and absence of firmware-based speed modulation support audit-ready traceability when paired with external data loggers compliant with FDA 21 CFR Part 11 Annex 11 guidelines.

Software & Data Management

The MIXdrive 1 XS operates as a standalone analog-controlled unit with no embedded microprocessor or digital interface—intentionally engineered to avoid software validation overhead in GxP-regulated settings. Speed adjustment is performed via external potentiometer or 0–10 V analog input (optional accessory), allowing seamless integration with programmable logic controllers (PLCs), environmental chamber controllers, or LabVIEW-based automation frameworks. No internal memory, firmware updates, or user-accessible configuration menus are present—ensuring deterministic behavior and eliminating cybersecurity attack surfaces. For time-critical protocols, the integrated 60-minute mechanical timer provides repeatable endpoint triggering without reliance on networked infrastructure.

Applications

• Continuous stirring of cell culture media in CO₂ incubators without compromising humidity or gas composition.
• Temperature-controlled dissolution testing in pharmacopeial compliance (USP , EP 2.9.3) using immersion-compatible HT variants.
• In-situ mixing during thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), or reaction calorimetry where electromagnetic isolation is mandatory.
• Stirring of viscous polymer solutions, hydrogels, or nanoparticle suspensions in sealed vials during accelerated stability studies (ICH Q1A–Q1E).
• Integration into automated liquid handling workstations requiring silent, non-vibrating agitation beneath deck-mounted modules.
• Use in cleanrooms (ISO Class 5–7) due to zero outgassing, non-shedding construction, and compatibility with IPA or hydrogen peroxide vapor (HPV) decontamination cycles.

FAQ

Can the MIXdrive 1 XS be operated inside a CO₂ incubator?

Yes—the standard version is rated for continuous operation at up to +50 °C and 95% RH, with full IP68 sealing preventing condensation ingress. It generates no heat convection or electromagnetic noise that would interfere with incubator sensors.
What is the maximum viscosity it can handle at 1,000 mL volume?

At nominal speed (600 rpm), it reliably agitates Newtonian fluids up to ~1,200 mPa·s (e.g., 1.2% agarose, 30% glycerol/water); performance beyond this depends on stir bar geometry and vessel aspect ratio.
Is the HT version compatible with autoclaving?

No—autoclaving (121 °C, saturated steam) exceeds the HT version’s validated immersion limit of +95 °C and may compromise internal coil insulation integrity.
Does it require calibration?

No routine calibration is specified by the manufacturer; however, users may verify rotational speed using a non-contact tachometer traceable to NIST standards as part of laboratory equipment qualification (IQ/OQ).
Can multiple units be synchronized for parallel stirring?

Yes—when driven by a shared 0–10 V analog signal source or daisy-chained potentiometer, up to 16 units maintain ±2 rpm inter-unit speed deviation under identical load conditions.