WIGGENS WHMIX6 Magnetic Stirrer
| Brand | WIGGENS |
|---|---|
| Origin | Germany |
| Product Type | Magnetic Stirrer |
| Model | WHMIX6 |
| Maximum Stirring Volume | 1–3000 mL |
| Speed Range | 100–2000 rpm |
| Power Rating | 20 W |
| Operating Environment | −10 to +50 °C (up to 80% RH) |
| Housing Material | Stainless Steel |
| Input Voltage | 100–240 V, 50–60 Hz |
| Protection Rating | IP64 |
| Dimensions (L×W×H) | 245 × 425 × 38 mm |
| Weight | ~8.8 kg |
Overview
The WIGGENS WHMIX6 Magnetic Stirrer is an industrial-grade, multi-position laboratory stirrer engineered for precision, long-term reliability, and chemical/thermal stability in demanding R&D and quality control environments. Utilizing contactless electromagnetic induction drive technology—free of mechanical gears, brushes, or wear-prone components—the WHMIX6 delivers silent, vibration-free, and maintenance-free operation across its full speed range. Designed specifically for continuous-duty applications in chemistry, biotechnology, pharmaceutical development, and analytical sample preparation, the device ensures consistent torque delivery at both low (100 rpm) and high (2000 rpm) rotational speeds, even under variable viscosity or load conditions. Its flat, seamless ceramic-coated top plate minimizes contamination risk and supports rapid thermal dissipation—critical for temperature-sensitive protocols requiring extended unattended operation.
Key Features
- Contactless electromagnetic induction drive: Eliminates mechanical wear, enabling 100% maintenance-free operation over lifetime.
- Six independent stirring positions with fully synchronized speed control—no drift or phase lag between stations.
- Four-step power regulation: Optimized torque response for low-viscosity aqueous solutions (low-power mode) and high-viscosity media (high-power mode), preventing overheating during prolonged use.
- Digital LED display with dual-parameter readout: Real-time visualization of set speed (rpm) and selected power level.
- Soft-start function: Ensures reliable capture and centering of magnetic stir bars—even in narrow-necked or tall-form vessels—before ramping to target speed.
- Auto-memory function: Stores most recently used speed and power settings for rapid reactivation across sessions.
- IP64-rated stainless steel housing: Resistant to corrosion from solvents, acids, and bases; easy to decontaminate and compatible with ISO 14644-1 Class 7 cleanroom workflows.
- Universal input (100–240 V, 50–60 Hz): Enables seamless deployment across global laboratory infrastructures without voltage conversion.
Sample Compatibility & Compliance
The WHMIX6 accommodates standard laboratory glassware—including 1000 mL Erlenmeyer flasks, 600 mL tall-form beakers, and 250 mL round-bottom flasks—across all six positions simultaneously. Its optimized inter-stirrer spacing (130 mm center-to-center) prevents magnetic field interference and ensures uniform vortex formation. The unit complies with IEC 61000-6-3 (EMC emission limits) and IEC 61010-1 (safety requirements for electrical equipment for measurement, control, and laboratory use). While not inherently GLP/GMP-certified, its stable performance, non-drifting speed control, and audit-ready parameter logging (via optional RS232/USB interface on WHMIX series variants) support alignment with FDA 21 CFR Part 11-compliant data integrity frameworks when integrated into validated workflows.
Software & Data Management
The WHMIX6 operates as a standalone instrument with embedded firmware controlling all motor dynamics and user inputs. For laboratories requiring traceable parameter recording, the WHMIX platform supports optional external data logging via RS232 or USB connection (hardware module sold separately). When paired with WIGGENS’ LabControl Suite (v3.2+), users can archive speed profiles, runtime duration, and power-level selections with timestamped entries—facilitating retrospective review during internal audits or regulatory inspections. All firmware updates are delivered through WIGGENS’ secure technical portal and maintain backward compatibility with existing configuration files.
Applications
- Buffer and reagent preparation in molecular biology labs (e.g., Tris-HCl, PBS, SDS solutions).
- Homogenization of polymer solutions and nanoparticle dispersions prior to DLS or TEM analysis.
- Long-duration dissolution testing per USP and Ph. Eur. 2.9.3 standards.
- Cell culture media conditioning under sterile laminar flow hoods (IP64 rating ensures dust/water resistance).
- Extraction protocols involving organic-aqueous biphasic systems (e.g., phenol-chloroform isolation).
- Calibration of viscometers and density meters using standardized reference fluids.
FAQ
Is the WHMIX6 suitable for viscous samples such as glycerol or agarose solutions?
Yes—the four-level power adjustment provides enhanced torque at lower speeds, enabling stable agitation of media up to ~15,000 mPa·s without stalling or thermal runaway.
Can individual stir positions be controlled separately?
No—WHMIX6 operates in synchronized mode only. For independent position control, consider the WHMIX4 MS model.
What stir bar sizes are recommended for optimal performance?
For 1–3000 mL volumes, use cylindrical stir bars ranging from 20 × 6 mm (small volumes) to 40 × 8 mm (large-volume/high-viscosity applications); elliptical bars are discouraged due to asymmetric magnetic coupling.
Does the unit include temperature control or heating capability?
No—WHMIX6 is a pure stirring platform. Compatible hotplate-stirrer combinations (e.g., WIGGENS WHMIX-HEAT series) are available separately.
How is calibration verified for regulatory compliance?
Speed accuracy is factory-verified against NIST-traceable tachometric standards (±2% tolerance at 100–2000 rpm); end-users may perform periodic verification using optical tachometers per ASTM E2917-20 guidelines.
