Titan MPS-4 Multi-Point Magnetic Stirrer
| Brand | Titan |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | MPS-4 |
| Instrument Type | Magnetic Stirrer |
| Maximum Stirring Volume | 2 L |
| Speed Range | 100–2000 rpm |
| Temperature Control Range | Ambient Only |
| Price | ¥3300 (excl. VAT, FOB Shanghai) |
Overview
The Titan MPS-4 Multi-Point Magnetic Stirrer is an engineered benchtop solution for simultaneous, independent agitation of up to four samples under identical or differentiated speed conditions. Designed for reproducible mixing in analytical preparation, reagent synthesis, buffer equilibration, and dissolution testing, the device operates on the principle of rotating magnetic fields generated by embedded rare-earth magnets beneath each stirring position. Unlike single-station units, the MPS-4 integrates four isolated drive circuits—each with dedicated speed control—to eliminate cross-talk and ensure consistent torque delivery across all positions, even at low speeds (100 rpm) or high-viscosity loads (up to 2 L per station). Its compact footprint (290 × 220 × 110 mm), robust aluminum alloy housing, and IP20-rated enclosure meet standard laboratory environmental requirements while supporting long-duration unattended operation.
Key Features
- Four independent stirring stations with individual digital speed control (100–2000 rpm), adjustable in 10-rpm increments for fine-tuned protocol alignment
- High-torque neodymium magnet arrays delivering stable rotation with PTFE-coated stir bars up to 60 mm in length
- LED digital display with real-time rpm readout per channel; memory function retains last-used settings after power cycle
- Thermally stable ceramic plate surface (non-heating design) rated for continuous operation at ambient laboratory temperatures (15–30 °C)
- Overload protection circuitry automatically disengages motor drive if stall or excessive load is detected at any station
- Low-noise brushless DC motors (<45 dB(A) at 1 m distance) compliant with ISO 7779 for acoustic emissions in shared lab environments
Sample Compatibility & Compliance
The MPS-4 accommodates standard laboratory glassware including beakers (50–1000 mL), Erlenmeyer flasks (125–500 mL), and cylindrical reaction vessels—provided stir bar geometry and vessel base curvature permit stable vortex formation. Each station supports stir bars with diameters from 4 to 8 mm and lengths up to 60 mm. The unit conforms to IEC 61010-1:2010 for electrical safety in laboratory equipment and carries CE marking for EMC (EN 61326-1) and Low Voltage Directive (2014/35/EU) compliance. While it lacks integrated heating, its ambient-only operation aligns with protocols requiring temperature-sensitive sample integrity (e.g., enzyme kinetics, polymer solubilization, or cell culture media preparation), eliminating thermal drift artifacts common in hotplate-stirrer hybrids.
Software & Data Management
The MPS-4 operates as a standalone instrument without proprietary software or connectivity interfaces. All operational parameters are set manually via front-panel controls, ensuring deterministic behavior and full traceability in GLP- and GMP-regulated environments where software validation overhead is prohibitive. For laboratories requiring audit-ready records, users may integrate the device into electronic lab notebooks (ELNs) via manual entry of speed settings, duration, and vessel identifiers—consistent with FDA 21 CFR Part 11 guidance for non-electronic record systems. No firmware updates, cloud dependencies, or driver installations are required, minimizing IT support burden and cybersecurity exposure.
Applications
- Parallel preparation of calibration standards and QC reference solutions across multiple concentration levels
- Simultaneous pH adjustment and homogenization of multi-batch buffer formulations prior to filtration and sterilization
- Dissolution testing of solid dosage forms (tablets, capsules) in USP Apparatus II (paddle) method validation studies where thermal input must be excluded
- Cell suspension maintenance during staining protocols or viability assays requiring gentle, uniform agitation without shear-induced lysis
- Pre-analytical sample conditioning for ICP-MS, HPLC, or titration workflows where particulate resuspension and reagent dispersion are critical
FAQ
Does the MPS-4 include heating capability?
No. The MPS-4 is a non-heating magnetic stirrer designed exclusively for agitation at ambient laboratory temperature.
Can I use different stir bar sizes across the four stations?
Yes. Each station operates independently; stir bar selection (length, shape, coating) may be optimized per vessel and viscosity without affecting other channels.
Is the unit suitable for use inside a fume hood?
Yes. With no heating elements or volatile components, and an IP20-rated enclosure, the MPS-4 is compatible with standard fume hood airflow profiles and chemical vapor environments.
What is the maximum viscosity this stirrer can handle at 2 L volume?
While not rated for absolute viscosity limits, successful operation has been verified with aqueous glycerol solutions up to ~1000 mPa·s using 40-mm PTFE-coated stir bars at 800 rpm.
Does Titan provide calibration documentation or traceable certificates?
As a mechanical stirring device without metrological sensors, the MPS-4 does not require NIST-traceable calibration; however, factory verification reports confirming speed accuracy (±2% of setpoint) and inter-channel synchronization are available upon request.
