IKA C-MAG MS 4 Magnetic Stirrer

Overview

The IKA C-MAG MS 4 is a compact, single-position magnetic stirrer engineered for precision, reliability, and chemical resistance in routine laboratory workflows. Designed and manufactured in Germany, it operates on the principle of rotating magnetic fields generated beneath a non-magnetic ceramic plate to drive magnetic stir bars within vessels. Its robust 15 W motor delivers consistent torque across the full speed range—enabling effective mixing of low- to medium-viscosity aqueous and organic solutions up to 5 L. Unlike basic analog stirrers, the C-MAG MS 4 integrates microprocessor-based speed feedback control, ensuring stable rotational velocity even under variable load conditions. The absence of mechanical transmission or exposed moving parts contributes to long-term operational stability and minimal maintenance requirements. This unit is not equipped with integrated heating; it is strictly a stirring-only platform intended for ambient-temperature or externally temperature-controlled applications.

Key Features

• Ceramic Working Surface: A monolithic, seamless 120 × 120 mm ceramic plate provides exceptional resistance to acids, bases, solvents, and thermal shock—ensuring longevity in aggressive chemical environments.
• Elevated Control Panel: Strategically raised above the plate surface to minimize liquid ingress during accidental splashes, improving both operator safety and interface legibility.
• Precision Analog Speed Control: Six-step dial (0–6) calibrated to deliver repeatable speeds from 100 to 1500 rpm, with mechanical indexing for tactile feedback and reproducible settings.
• High-Strength Magnetic Coupling: Optimized magnet geometry ensures reliable engagement of standard and high-torque stir bars—even in tall or narrow vessels—reducing “jumping” or decoupling during operation.
• IP21 Ingress Protection: Compliant with DIN EN 60529, offering protection against vertically falling drips and solid objects >12.5 mm—suitable for general-purpose lab use under controlled environmental conditions.
• Low-Power, High-Efficiency Design: Total input power consumption of 30 W supports energy-conscious laboratory operations without compromising torque delivery or thermal management.

Sample Compatibility & Compliance

The C-MAG MS 4 accommodates standard glass, PTFE-coated, or stainless-steel magnetic stir bars (e.g., 30–50 mm length, 8–10 mm diameter) in vessels ranging from 10 mL test tubes to 5 L beakers or flasks. It is compatible with aqueous buffers, saline solutions, ethanol/water mixtures, diluted acids (e.g., ≤1 M HCl), and common organic solvents (e.g., acetone, THF, ethyl acetate) when used with chemically inert vessel materials. While the device itself carries no intrinsic regulatory certification for GxP environments, its construction and performance characteristics align with foundational requirements for GLP-compliant equipment qualification (e.g., IQ/OQ protocols). Users deploying this instrument in regulated settings must validate speed accuracy, repeatability, and stability per internal SOPs referencing ISO/IEC 17025 or ASTM E2500 guidelines.

Software & Data Management

The C-MAG MS 4 is a standalone, manually operated instrument with no digital interface, USB port, or software connectivity. All operation is performed via the front-panel analog dial; speed is indicated by fixed-scale markings rather than digital readout. As such, it does not support data logging, remote control, audit trails, or FDA 21 CFR Part 11 compliance features. Its simplicity renders it ideal for teaching labs, QC screening, preparatory chemistry, and environments where electronic interference or cybersecurity constraints preclude connected instrumentation. For traceable speed verification, users may employ external tachometers calibrated per ISO 16063-21.

Applications

• Homogenization of buffer solutions and reagent preparations in molecular biology and biochemistry labs
• Stirring of titration mixtures and standard solution dilutions in analytical chemistry workflows
• Supporting dissolution testing setups where external temperature control (e.g., water bath or recirculating chiller) is applied
• Preparation of catalyst suspensions, nanoparticle dispersions, and polymer solutions requiring gentle yet consistent agitation
• Use in cleanroom-adjacent areas where low electromagnetic emission and absence of fan-driven cooling are advantageous
• Undergraduate and graduate teaching laboratories emphasizing fundamental mixing principles and equipment handling protocols

FAQ

Does the C-MAG MS 4 include a heating function?
No. This model is a magnetic stirrer only and does not incorporate a heating element. For combined stirring and heating, consider the IKA C-MAG HS series.
What is the maximum recommended viscosity for stable operation?
The unit is optimized for Newtonian fluids with viscosities up to approximately 1000 mPa·s (e.g., 40% glycerol/water at 25 °C). Higher viscosities may reduce achievable speed or cause bar slippage.
Is the ceramic plate resistant to hydrofluoric acid (HF)?
No. Standard alumina-based ceramic plates are not HF-resistant. Avoid contact with HF or anhydrous fluorides.
Can the C-MAG MS 4 be used inside a fume hood?
Yes—provided ambient temperature remains between 5–40 °C and relative humidity stays below 80%. Ensure adequate ventilation around the rear vent to prevent thermal buildup.
What stir bar size is recommended for 5 L vessels?
A 50 mm × 10 mm elliptical or cylindrical PTFE-coated stir bar is typically optimal for uniform mixing in tall-form 5 L containers.