Titan MS-5L Magnetic Stirrer
| Brand | Titan |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | MS-5L |
| Instrument Type | Magnetic Stirrer |
| Maximum Stirring Volume | 5 L |
| Speed Range | 100–1500 rpm |
| Temperature Control Range | Ambient Only |
| Pricing | ¥1460 (excl. VAT, FOB Shanghai) |
Overview
The Titan MS-5L Magnetic Stirrer is a compact, benchtop laboratory instrument engineered for precision mixing of low-to-medium viscosity liquids in research, quality control, and teaching laboratories. It operates on the principle of magnetic coupling: a rotating permanent magnet or electromagnetic drive beneath the work surface induces synchronous rotation of a PTFE- or glass-coated stir bar immersed in the sample vessel. This contactless drive mechanism eliminates mechanical shaft seals, minimizing contamination risk and enabling operation in sealed or inert-atmosphere environments. Designed for reliability under continuous use, the MS-5L features a robust aluminum alloy housing with heat-dissipating fins and an integrated thermal cutoff to prevent motor overload. Its ambient-only temperature capability makes it suitable for applications where external heating (e.g., hot plates, water baths) or temperature-sensitive protocols are employed—ensuring compatibility with thermolabile reagents, enzymatic assays, or pH-sensitive buffer preparations.
Key Features
- Stable speed control across a wide range of 100–1500 rpm, calibrated via internal feedback circuitry for high reproducibility between runs.
- Optimized magnetic drive system delivering consistent torque up to 5 L volume in standard cylindrical glass beakers (≥80 mm diameter, ≥150 mm height).
- Non-slip rubberized base and low center-of-gravity design minimize vibration and lateral displacement during high-speed operation.
- Digital LED display with intuitive rotary encoder interface enables precise parameter selection and real-time speed monitoring.
- IP20-rated enclosure meets basic laboratory environmental protection requirements; compliant with IEC 61010-1 for electrical safety in measurement and laboratory equipment.
- No built-in heating element—intentionally designed for integration with external thermal platforms or use in ambient-temperature workflows requiring strict thermal isolation.
Sample Compatibility & Compliance
The MS-5L accommodates standard laboratory vessels including borosilicate glass beakers (50–1000 mL), Erlenmeyer flasks (up to 2000 mL), and custom reaction containers with flat, non-magnetic bottoms. Stir bar selection (e.g., 30 mm × 8 mm cross-shaped or oval PTFE-coated) is critical for efficient vortex formation and homogeneous mixing at target speeds. The device complies with ISO/IEC 17025 general requirements for calibration laboratories when used with traceable speed verification tools (e.g., optical tachometer). While not certified for GLP or GMP production environments, its consistent performance supports documented SOPs in QC labs adhering to ASTM D1298 (density of crude oil) or USP (dissolution apparatus verification) where mechanical agitation is specified.
Software & Data Management
The MS-5L is a standalone analog-digital hybrid instrument with no embedded firmware, network interface, or data logging capability. All operational parameters are set manually and retained only while powered. For regulated environments requiring audit trails, users may integrate the unit into validated workflows using external time-stamped video recording or programmable logic controllers (PLCs) with analog speed output monitoring (0–10 V DC signal optional via OEM customization). No software installation, cloud connectivity, or FDA 21 CFR Part 11 compliance is provided—consistent with Class I non-invasive laboratory equipment per FDA classification guidance.
Applications
- Homogenization of aqueous buffers, cell culture media, and dilution standards prior to pH adjustment or filtration.
- Facilitating dissolution testing of pharmaceutical excipients and active ingredients under ambient conditions.
- Supporting titration setups where constant agitation ensures uniform reagent dispersion without introducing air bubbles.
- Preparing calibration standards for ICP-OES, HPLC, and spectrophotometric analysis where particulate suspension stability is essential.
- Enabling small-scale chemical synthesis under inert gas blankets (e.g., N₂ or Ar) using sealed round-bottom flasks with magnetic stir bars.
FAQ
Does the MS-5L include a heating function?
No. The MS-5L is a magnetic stirrer only and does not incorporate a heating plate. It is intended for use with external heat sources or ambient-temperature protocols.
What is the maximum recommended vessel diameter for stable operation at 1500 rpm?
For optimal vortex symmetry and minimal splashing, use vessels with bottom diameters between 80 mm and 120 mm. Larger diameters may require reduced speed or specialized stir bars.
Is the unit compatible with corrosive solvents such as concentrated acids or organic halides?
The PTFE-coated stir bar and chemically resistant top plate allow brief exposure to common lab solvents; however, prolonged contact with strong oxidizers (e.g., fuming nitric acid) or halogenated hydrocarbons is not recommended without verifying material compatibility.
Can the speed setting be locked to prevent accidental adjustment during experiments?
The MS-5L does not feature a physical or digital lock function. Users should implement procedural controls or external enclosures in shared-lab environments.
What maintenance is required for long-term reliability?
Routine cleaning of the top plate with isopropyl alcohol and periodic inspection of stir bar coating integrity are sufficient. No lubrication or internal servicing is required under normal operating conditions.
