BlueSpin MS-M-S10 10-Position Standard Magnetic Stirrer

Overview

The BlueSpin MS-M-S10 is a precision-engineered 10-position magnetic stirrer designed for high-throughput laboratory environments where reproducibility, spatial efficiency, and operational consistency are critical. Based on the principle of rotating magnetic field coupling—where a rotating permanent magnet array beneath the plate induces synchronous rotation of PTFE- or glass-coated stir bars immersed in samples—the MS-M-S10 delivers uniform agitation across all ten independent positions without mechanical linkage or cross-contamination risk. Its compact footprint (552 mm depth) accommodates standard benchtop workflows while supporting parallel sample preparation for applications including buffer equilibration, reagent dissolution, enzymatic reaction mixing, and QC sample homogenization. The device is not intended for viscous media (>100 mPa·s) or high-temperature heating; it operates strictly as a non-heated stirring platform compliant with IEC 61010-1 safety standards for laboratory electrical equipment.

Key Features

• Simultaneous 10-channel operation with fully synchronized motor-driven magnetic drive—ensures identical shear history and mixing kinetics across all positions.
• Brushless DC motor architecture delivering stable torque output from 0 to 1100 rpm, with analog speed calibration enabling repeatable setpoint recall without digital interface dependency.
• Corrosion-resistant stainless steel working surface coated with silicone resin film—provides enhanced grip for vessels (including conical flasks and multi-well plates), chemical resistance to common solvents (e.g., ethanol, dilute acids/bases), and thermal stability up to 60 °C surface temperature under continuous operation.
• Low-noise design (<45 dB(A) at 1 m distance) achieved via optimized rotor dynamics and vibration-damping base construction—suitable for shared lab spaces and laminar flow cabinets.
• IP42-rated enclosure protects internal electronics against dripping water and solid objects ≥1 mm—meeting minimum ingress protection requirements for general-purpose laboratory use per DIN EN 60529.
• Energy-efficient operation: 20 W total power draw with 4 W mechanical output, supporting sustainability goals without compromising performance consistency.

Sample Compatibility & Compliance

The MS-M-S10 supports standard laboratory glassware and plastic vessels ranging from 10 mL test tubes to 500 mL Erlenmeyer flasks. Each position accommodates stir bars up to 40 mm in length (typically 20–30 mm recommended for optimal vortex formation in ≤400 mL volumes). Compatibility extends to aqueous solutions, saline buffers, organic solvent mixtures (e.g., methanol/water), and low-viscosity suspensions. It is not rated for use with halogenated solvents (e.g., chloroform), strong oxidizers (e.g., concentrated HNO₃), or abrasive slurries. The unit complies with CE marking requirements under the EU Low Voltage Directive (2014/35/EU) and Electromagnetic Compatibility Directive (2014/30/EU). While not certified for GMP or GLP environments out-of-the-box, its analog control architecture and absence of firmware-based logic render it inherently suitable for regulated workflows where audit-trail-free operation is preferred.

Software & Data Management

The MS-M-S10 operates as a standalone analog instrument with no embedded microprocessor, software stack, or connectivity interfaces (USB, Bluetooth, Ethernet). Speed settings are manually adjusted via front-panel rotary dial and verified using the integrated calibrated scale—eliminating calibration drift associated with digital encoders and removing dependencies on proprietary drivers or cloud services. This architecture ensures long-term operational reliability, zero firmware update requirements, and full compatibility with ISO/IEC 17025-accredited laboratories that restrict connected devices in analytical zones. For documentation purposes, users may log speed settings and runtime manually within paper-based or LIMS-integrated batch records.

Applications

• High-volume buffer and media preparation in molecular biology and cell culture labs.
• Parallel dissolution testing of pharmaceutical excipients during formulation development.
• Consistent mixing of calibration standards and reference materials for spectrophotometric and chromatographic analysis.
• Homogenization of environmental water samples prior to filtration or metal digestion (EPA Method 200.7, 200.8).
• Supporting ASTM D7928 and ISO 14688-1 soil suspension protocols requiring standardized agitation intensity.
• QC/QA workflows in food safety labs performing AOAC 984.27 or ISO 6498 sample dispersion.

FAQ

Is the MS-M-S10 compatible with hot plates or external heating modules?
No. This model is a non-heated stirrer only. Integration with external heating surfaces is not recommended due to thermal expansion mismatch and potential interference with magnetic coupling efficiency.
Can it be used under a nitrogen or argon atmosphere?
Yes—provided the vessel is sealed appropriately and stir bars are chemically inert (e.g., PTFE-coated). No internal components outgas or degrade under inert conditions.
What maintenance does the brushless DC motor require?
None. The motor contains no brushes, commutators, or lubrication points. Lifetime expectancy exceeds 20,000 hours under typical laboratory duty cycles.
Does the silicone resin coating withstand autoclaving?
No. The coated plate surface is not autoclavable. Cleaning is limited to damp lint-free cloths with 70 % ethanol or mild detergent solutions.
Is speed accuracy traceable to national standards?
Speed indication is factory-calibrated against NIST-traceable tachometer references. A certificate of conformance is supplied with each unit; optional UKAS-accredited calibration is available upon request.