Scientific Industries QuadMag Genie 4-Position Digital Magnetic Stirrer
| Brand | Scientific Industries |
|---|---|
| Origin | USA |
| Model | QuadMag Genie |
| Instrument Type | Magnetic Stirrer |
| Maximum Stirring Volume per Position | 2 L |
| Speed Range | 250–1300 rpm |
| Temperature Operation Range | Ambient |
| Number of Stirring Positions | 4 |
| Timer Range | 1 s – 99 min or Continuous Mode |
| Platform Dimensions | 305 × 305 mm |
| Unit Dimensions (D×W×H) | 310 × 305 × 130 mm |
| Weight | 3 kg |
| Certifications | CE |
| Order Code | SI-5246 |
Overview
The Scientific Industries QuadMag Genie is a precision-engineered, four-position digital magnetic stirrer designed for high-reproducibility mixing across parallel sample workflows in research laboratories, quality control environments, and bioprocess development settings. Unlike conventional single-point stirrers, the QuadMag Genie employs a proprietary high-field neodymium magnet array beneath each of its four independent stirring zones—delivering consistent torque transfer even with viscous or dense media (e.g., cell culture suspensions, polymer solutions, or agar-based gels). Its operation is based on electromagnetic coupling between the internal rotating magnets and standard PTFE- or glass-coated magnetic stir bars; no mechanical contact is required, eliminating wear, contamination risk, or cross-sample interference. Engineered for ambient-temperature operation, the unit maintains stable rotational output without external heating elements—making it suitable for cold rooms, CO₂ incubators, and laminar flow hoods where thermal drift must be avoided.
Key Features
- Four independently controlled stirring positions with synchronized or asynchronous speed adjustment via intuitive digital interface
- High-strength rare-earth (NdFeB) magnet assemblies ensure reliable stir bar engagement—even at low speeds and in high-viscosity samples up to 2 L per position
- Durable vortex-grade motor architecture derived from the proven Vortex-Genie platform, delivering long-term operational stability and low acoustic noise (<45 dB at 1 m)
- Robust housing constructed from impact-resistant ABS/PC blend with non-slip silicone feet for vibration-dampened placement on uneven or chilled surfaces
- Programmable timer with dual modes: precise interval timing (1 second to 99 minutes) or continuous operation with auto-hold functionality
- Compact footprint (305 × 305 mm platform) optimized for benchtop integration, incubator shelving, and biosafety cabinet use
Sample Compatibility & Compliance
The QuadMag Genie accommodates standard stir bars ranging from 10 mm to 40 mm in length and supports vessels including borosilicate glass beakers (50–2000 mL), polypropylene conical tubes, multi-well plates (with compatible micro-stir bars), and custom reaction vials. Its ambient-only operation complies with ISO 15190:2020 requirements for laboratory equipment used in non-thermal applications and meets CE marking directives (2014/30/EU EMC and 2014/35/EU LVD). While not a regulated medical device, its design aligns with GLP principles for traceable parameter setting and repeatable execution—particularly when paired with audit-trail-capable lab information management systems (LIMS).
Software & Data Management
The QuadMag Genie operates as a standalone instrument with no embedded firmware or network connectivity. All parameters—including speed (rpm), timer duration, and run status—are set and monitored via a front-panel LED display and tactile membrane keypad. No software installation, drivers, or cloud services are required. For laboratories requiring electronic record retention, manual logging into validated electronic lab notebooks (ELNs) or LIMS is supported through standardized operating procedures (SOPs). The device does not generate raw data streams but provides deterministic, user-verified operational states suitable for 21 CFR Part 11–aligned documentation when used within controlled workflows.
Applications
- Parallel preparation of buffer solutions, reagent dilutions, and calibration standards across QC testing labs
- Homogenization of microbial cultures, yeast suspensions, and mammalian cell lines prior to centrifugation or analysis
- Consistent mixing during ELISA plate coating, antigen-antibody binding steps, and wash cycles
- Stirring of viscous hydrogels, alginate matrices, or chitosan solutions in biomaterials R&D
- Long-duration agitation of extraction solvents in natural product isolation protocols
- Use inside refrigerated incubators (4–10 °C) or CO₂-controlled environments for temperature-sensitive biological assays
FAQ
Can the QuadMag Genie be used inside a CO₂ incubator?
Yes—the unit is rated for ambient operation only and contains no heating elements or outgassing plastics; it has been validated for safe, stable use in standard humidified CO₂ incubators at 37 °C and 5% CO₂.
Is speed calibration traceable to NIST standards?
No built-in calibration certificate is provided; however, speed accuracy (±2% of setpoint across 250–1300 rpm) can be verified using an externally calibrated tachometer per ASTM E2822–19 guidelines.
What stir bar sizes are recommended for optimal performance at 2 L volume?
For 2 L beakers, use 30–40 mm elliptical or cross-shaped PTFE-coated stir bars with ≥5 mm diameter; avoid cylindrical bars longer than 35 mm to prevent orbital instability.
Does the device support external triggering or analog signal input?
No—it operates exclusively via local keypad control and lacks I/O ports, RS-232, USB, or Ethernet interfaces.
How is maintenance performed?
Routine cleaning involves wiping the platform with 70% ethanol; no lubrication or internal servicing is required during normal operation. Motor lifetime exceeds 20,000 hours under typical intermittent usage profiles.
