Scientific Industries MegaMag Genie Large-Volume Magnetic Stirrer

Overview

The Scientific Industries MegaMag Genie is a high-capacity, digitally enabled magnetic stirrer engineered for reproducible, low-heat mixing of large-volume samples in research, quality control, and process development laboratories. Utilizing a robust permanent-magnet drive system with optimized magnetic coupling geometry, the MegaMag Genie delivers consistent torque transmission across its full 250–1300 rpm operating range—without mechanical contact between drive motor and stir bar. This contactless operation eliminates friction-induced heating, preserving sample integrity during extended agitation of temperature-sensitive biological suspensions, viscous polymer solutions, or cell culture media. Designed specifically for scalability, the unit supports stirring volumes up to 38 L in standard laboratory glassware—including tall-form cylinders, wide-mouth bottles, and multi-liter Erlenmeyer flasks—making it suitable for applications where conventional stirrers reach physical or thermal limits.

Key Features

• Triple-mode operation: Manual (direct speed/direction/time control), Programmable (up to 9 sequential steps per program, with forward/reverse toggling, timed pauses, and power modulation), and Auto Recall (instant activation of any of four user-saved protocols)
• High-torque neodymium magnet array with uniform field distribution across the full 305 × 305 mm ceramic-coated stainless steel plate surface
• Microprocessor-based control architecture ensuring ±2 rpm speed stability and <0.5% repeatability across repeated runs under identical load conditions
• No internal heating elements or forced-air cooling—ambient-only operation maintains baseline thermal environment without external heat input or convective disturbance
• Compact footprint (310 × 305 × 130 mm) and lightweight design (3 kg) facilitate integration into biosafety cabinets, cold rooms, or shared benchtop workflows
• CE-compliant electromagnetic compatibility and electrical safety certification for deployment in ISO 17025-accredited labs and GxP-regulated environments

Sample Compatibility & Compliance

The MegaMag Genie accommodates standard borosilicate glass and polypropylene vessels ranging from 1 L beakers to 40 L carboys, provided stir bars are appropriately sized (e.g., 80–120 mm cross-shaped or oval bars rated for ≥30 L). Its magnetic field strength and spatial uniformity ensure stable rotation even with high-viscosity media (up to ~15,000 cP at 500 rpm) and dense particulate suspensions. The device complies with IEC 61000-6-3 (EMI emission) and IEC 61000-6-2 (immunity) standards, and meets CE requirements for laboratory equipment under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). While not equipped with integrated temperature sensing or regulation, its ambient-only operation aligns with USP and ISO 20957-2 guidelines for non-thermal mixing in aseptic preparation areas.

Software & Data Management

The MegaMag Genie operates via embedded firmware with no external software dependency. All programmable parameters—including stepwise speed profiles, directional transitions, dwell times, and pause intervals—are stored in non-volatile memory and retain settings after power cycling. Each of the four available program slots supports audit-ready parameter logging: timestamped start/stop events and mode selection are recorded internally and can be manually verified via front-panel display. For laboratories requiring electronic records compliant with FDA 21 CFR Part 11, the device may be integrated into broader lab management systems via optional RS-232 or USB-to-serial adapters (sold separately), enabling remote command execution and basic status polling (e.g., “running”, “paused”, “complete”) through ASCII protocol.

Applications

• Large-scale cell culture media preparation and homogenization prior to sterile filtration
• Viscous reagent blending for diagnostic assay kits (e.g., antibody conjugates, enzyme substrates)
• Preparation of hydrogel precursors and biopolymer solutions for tissue engineering scaffolds
• Batch-wise dissolution testing of extended-release pharmaceutical formulations (per USP )
• Mixing of high-density microbial fermentation broths in pilot-scale bioreactor seed train operations
• Uniform dispersion of nanoparticles in aqueous or organic carrier fluids for nanotoxicology studies

FAQ

Does the MegaMag Genie support temperature control or heating?
No. The MegaMag Genie is a dedicated magnetic stirrer with ambient-only operation. It does not include heating elements or external temperature feedback loops.
What stir bar sizes are recommended for 38 L volumes?
For optimal coupling and vortex stability at maximum volume, use cross-shaped or oval stir bars measuring 100–120 mm in length and rated for ≥40 L capacity. Bar material should be PTFE-coated Alnico or SmCo for corrosion resistance and magnetic retention.
Can the MegaMag Genie be used inside a CO₂ incubator or cold room?
Yes—provided ambient temperature remains within 10–40 °C and relative humidity does not exceed 80% non-condensing. Its fanless, solid-state design ensures reliable operation in controlled-environment enclosures.
Is validation documentation available for GMP environments?
Scientific Industries provides a Factory Acceptance Test (FAT) report with each unit, including speed calibration verification against NIST-traceable tachometer standards. IQ/OQ protocols are available upon request for integration into facility qualification packages.
How many stir bars can be operated simultaneously on the plate?
The MegaMag Genie is configured for single-point agitation. Its magnetic field is optimized for one large-diameter stir bar per run; simultaneous multi-vessel operation is not supported.