SciLogex MS-H-S Advanced Heating Magnetic Stirrer

Overview

The SciLogex MS-H-S Advanced Heating Magnetic Stirrer is an engineered solution for precise, reproducible mixing and temperature-controlled sample preparation in academic, pharmaceutical, and industrial laboratories. Based on the fundamental principle of magnetic coupling—where a rotating permanent magnet beneath the workplate induces synchronous rotation of a magnetic stir bar immersed in the sample—the MS-H-S integrates high-efficiency brushless DC motor control with resistive plate heating to deliver stable rotational dynamics and uniform thermal distribution. Unlike basic analog stirrers, this model features independent thermal safety circuitry, dual-material workplate options (enamel-coated steel or electropolished stainless steel), and robust electromagnetic design optimized for long-term operation under variable load conditions. Its compact footprint and IP42-rated enclosure meet standard laboratory environmental requirements (5–40 °C ambient, ≤80% RH), making it suitable for routine QC workflows, reagent synthesis, buffer equilibration, and dissolution testing where both mechanical agitation and controlled heating are required.

Key Features

• Brushless DC motor ensures consistent speed across varying viscosities and volumes—no drift upon load change, with 0–1500 rpm continuously adjustable via analog dial
• Dual workplate material selection: chemically resistant enamel surface or corrosion-resistant stainless steel for compatibility with aggressive solvents and acidic/basic media
• Integrated heating system delivers up to 500 W output, enabling rapid heating rates of up to 6 K/min (in 1 L water) and precise temperature control from ambient to 340 °C
• Dedicated thermal safety circuit automatically de-energizes the heater when surface temperature exceeds 350 °C—compliant with IEC 61000-4-2 ESD immunity and EN 60529 IP42 ingress protection standards
• High-strength neodymium magnetic drive system minimizes stir bar slippage or ejection, even during high-speed operation with viscous or dense suspensions
• Sealed chassis design prevents dust and liquid ingress into internal electronics, extending service life and reducing maintenance frequency

Sample Compatibility & Compliance

The MS-H-S accommodates standard laboratory glassware (beakers, flasks, crystallization dishes) up to 20 L volume capacity using stir bars ranging from 10 mm to 80 mm in length. Its enamel and stainless steel workplates support compatibility with common organic solvents (e.g., acetone, ethanol, chloroform), aqueous buffers, and mildly corrosive reagents. The device complies with international safety and electromagnetic compatibility directives including IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and IEC 61326-1 (EMC for Laboratory Equipment). While not certified for GLP/GMP environments out-of-the-box, its stable thermal and rotational performance supports method validation per USP , ISO 17025, and ASTM D1298 (density determination requiring uniform mixing).

Software & Data Management

The MS-H-S operates as a standalone analog instrument without digital connectivity or embedded software. All controls—including speed and heating setpoints—are managed via calibrated front-panel dials with mechanical indicators. No data logging, USB export, or remote interface is provided; however, its analog architecture ensures operational reliability, immunity to firmware failure, and minimal qualification burden in regulated settings where deterministic behavior is prioritized over connectivity. For labs requiring audit trails, external temperature and RPM loggers (e.g., compliant with FDA 21 CFR Part 11) may be integrated using calibrated PT100 probes and optical tachometers.

Applications

• Buffer and media preparation in cell culture and molecular biology workflows
• Dissolution testing of solid dosage forms in pharmaceutical development
• Catalyst suspension and homogeneous reaction mixture maintenance in synthetic chemistry
• Standardization of viscosity reference fluids prior to rheometer calibration
• Heating-assisted extraction protocols (e.g., Soxhlet pre-concentration, acid digestion support)
• Long-duration stability studies requiring unattended overnight stirring at constant temperature

FAQ

Does the MS-H-S support dual voltage input (110 V / 220 V)?
No—only the MS-S variant offers selectable 110/220 V operation. The MS-H-S is configured exclusively for 220 VAC, 50/60 Hz supply.
Is the heating plate temperature digitally displayed?
No—temperature indication is via analog scale only. For precise thermal monitoring, an external calibrated thermometer or IR pyrometer is recommended.
Can the MS-H-S be used with closed-vessel systems?
Yes, provided the vessel base is non-magnetic and thermally conductive (e.g., borosilicate glass, aluminum), and the stir bar remains fully submerged and centered.
What is the maximum allowable ambient humidity for continuous operation?
Operation is rated for environments up to 80% relative humidity at 5–40 °C, in accordance with EN 60529 IP42 specifications.
Are replacement stir bars and accessories traceable to NIST standards?
Stir bars (e.g., MSBAR series) are manufactured to dimensional tolerances but are not individually certified to metrological standards; users should verify geometry and magnetic moment against application-specific requirements.