Titan MS-50L Heavy-Duty Magnetic Stirrer with Integrated Heating Plate

Overview

The Titan MS-50L is a robust, benchtop magnetic stirrer engineered for high-volume laboratory mixing applications requiring consistent torque delivery and long-term operational stability. Designed around the principle of electromagnetic induction, the device employs a rotating permanent magnet array beneath a chemically resistant ceramic-coated aluminum plate to drive magnetic stir bars immersed in vessels. Unlike hotplate stirrers, the MS-50L operates exclusively as a non-heating magnetic stirrer—its thermal specification is limited to ambient temperature operation, making it ideal for temperature-sensitive reactions, enzymatic assays, or solvent systems where external heating introduces risk of decomposition, volatility, or calibration drift. Its mechanical architecture prioritizes low-vibration motor coupling, reinforced housing, and precision-machined rotor alignment to ensure minimal orbital deviation across extended duty cycles.

Key Features

• High-torque DC motor delivering stable rotation up to 1500 rpm with <1% speed fluctuation under load at 50 L volume using standard PTFE-coated stir bars
• Reinforced cast-aluminum base with integrated vibration-dampening feet for noise reduction and platform stability during prolonged operation
• Digital LED display with intuitive rotary encoder interface for precise speed adjustment in 1-rpm increments
• Ceramic-coated stainless steel top plate offering excellent chemical resistance against common solvents, acids, and bases (including 30% HNO₃, 10% NaOH, and acetone)
• Overload protection circuitry automatically disengages power if stall torque exceeds 120% of rated capacity for >5 seconds
• IP20-rated enclosure suitable for standard laboratory environments; CE-compliant per EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity)

Sample Compatibility & Compliance

The MS-50L accommodates round-bottom flasks, beakers, and custom reactor vessels ranging from 500 mL to 50 L, provided internal diameter does not exceed 220 mm and vessel bottom curvature permits uniform magnetic coupling. Compatible stir bars include standard cylindrical (e.g., 40 × 8 mm), cross-shaped, and elliptical geometries—optimally selected based on fluid viscosity and container geometry. The unit complies with ISO/IEC 17025:2017 general requirements for competence of testing and calibration laboratories when used within documented SOPs. While not certified for GMP manufacturing environments, its repeatable speed control and traceable operational logs (via optional RS-232 output) support GLP-aligned workflows in R&D, QC, and method development labs.

Software & Data Management

The MS-50L operates as a standalone instrument with no embedded firmware-based data logging. However, it features an RS-232 serial port (DB9 female) enabling integration with third-party lab automation systems or custom SCADA interfaces. When connected to a host PC running compliant terminal software (e.g., Tera Term or LabVIEW VISA drivers), users may remotely query real-time speed status, initiate start/stop commands, and record timestamped operational events. Audit trails generated through such integrations can satisfy basic FDA 21 CFR Part 11 requirements for electronic records—provided the host system implements appropriate user authentication, electronic signatures, and data integrity safeguards.

Applications

• Large-scale buffer preparation and reagent homogenization in biopharmaceutical upstream processing
• Continuous mixing during titration or precipitation protocols requiring constant agitation without thermal input
• Cell culture media conditioning prior to sterile filtration, where localized heating may denature growth factors
• Slurry suspension maintenance in analytical sample preparation (e.g., ICP-MS digestate stabilization)
• Long-duration kinetic studies involving pH-sensitive indicators or redox couples where temperature gradients must remain uncontrolled
• Teaching laboratories emphasizing fundamental mixing dynamics, Reynolds number correlation, and shear-rate profiling

FAQ

Does the MS-50L include a heating function?
No. The MS-50L is a dedicated magnetic stirrer without integrated heating elements. Its temperature specification is ambient-only.
What is the maximum recommended viscosity for reliable operation at 50 L volume?
For Newtonian fluids ≤ 500 mPa·s (e.g., aqueous glycerol solutions up to 30% w/w), full speed range remains accessible. Above this, optimal performance requires bar geometry optimization and reduced setpoint (≤1000 rpm).
Is the unit compatible with corrosive fume hood environments?
Yes—the ceramic-coated plate and sealed motor housing resist incidental exposure to HCl, H₂SO₄, and organic vapors. Continuous immersion or direct acid splashing is not advised.
Can multiple MS-50L units be synchronized via master-slave configuration?
Not natively. Synchronization requires external PLC-level coordination via RS-232 command sequencing or analog voltage triggering (0–10 V input option available upon request).
What stir bar size is recommended for 50 L glass reactors?
A minimum 80 × 15 mm elliptical PTFE/NdFeB stir bar is recommended; dual-bar configurations are supported for improved radial mixing uniformity.