IKA TOPOLINO MOBIL Portable Magnetic Stirrer

Overview

The IKA TOPOLINO MOBIL is a compact, battery-powered portable magnetic stirrer engineered for precision mixing in non-fixed laboratory environments—including field research, teaching labs, quality control checkpoints, and mobile analytical units. Unlike conventional AC-powered stirrers, the TOPOLINO MOBIL operates on a brushless DC motor, eliminating mechanical wear associated with carbon brushes and ensuring long-term speed stability and maintenance-free operation. Its core principle relies on rotating magnetic fields generated beneath a chemically resistant polypropylene workplate to drive ferromagnetic stir bars immersed in liquid samples. Designed for low-volume applications up to 250 mL of aqueous media, it delivers consistent rotational torque across its full speed range (500–1800 rpm), enabling reproducible homogenization, dissolution, and suspension stabilization under variable ambient conditions.

Key Features

• True portability enabled by dual-power architecture: operates exclusively on four standard rechargeable AA cells (9 V DC nominal) or via universal AC adapter (100–240 V, 50/60 Hz), supporting uninterrupted use in locations without reliable mains access.
• Brushless DC motor ensures silent, vibration-minimized operation with no commutator degradation—critical for extended unattended runs and sensitive optical or gravimetric measurements conducted nearby.
• Stepless speed control via rotary dial with tactile feedback; speed remains stable within ±5% across load variations up to 0.5 kg total mass (including vessel and contents).
• IP20-rated enclosure provides protection against solid objects >12.5 mm and limited ingress of vertically falling water droplets—suitable for general lab bench use but not wet-process or splash-prone environments.
• Polypropylene (PP) workplate offers excellent chemical resistance to dilute acids, bases, and organic solvents; its smooth, non-porous surface prevents residue buildup and simplifies decontamination between samples.
• Compact footprint (140 × 42 × 140 mm) and lightweight design (0.747 kg) facilitate transport in instrument cases or backpacks, making it ideal for educational outreach, clinical point-of-care prep, or on-site environmental sampling workflows.

Sample Compatibility & Compliance

The TOPOLINO MOBIL is validated for use with standard PTFE- or glass-coated stir bars up to 30 mm in length, compatible with vessels ranging from 10 mL test tubes to 250 mL Erlenmeyer flasks or beakers. It meets DIN EN 60529 for ingress protection (IP20) and conforms to IEC 61010-1:2010 for electrical safety in laboratory equipment. While not certified for explosion-proof or sterile applications, its construction complies with general GLP documentation requirements when used in regulated QC environments—particularly where mobility and traceable power sourcing are essential. No regulatory certification (e.g., FDA 21 CFR Part 11, ISO 17025) applies directly to standalone stirrer functionality; however, its consistent performance supports method validation per ASTM D2196 (viscosity measurement) and USP (dissolution apparatus auxiliary devices).

Software & Data Management

The TOPOLINO MOBIL is a manually operated, analog-control device with no embedded firmware, digital interface, or data logging capability. As such, it does not support USB connectivity, remote configuration, or audit trail generation. This design prioritizes operational simplicity, electromagnetic compatibility (EMC), and reliability in electromagnetically noisy settings—such as near NMR spectrometers or RF-based analyzers. Users record operational parameters (speed setting, duration, vessel type) manually in lab notebooks or LIMS-integrated electronic records. For applications requiring automated speed ramping or time-stamped event logs, IKA recommends integration with external programmable timers or pairing with IKA’s ROTAVISC or C-MAG HS series for traceable, software-controlled stirring protocols.

Applications

• Field-deployable sample preparation for water quality analysis (e.g., pH adjustment, reagent homogenization prior to colorimetric or ion-selective electrode testing).
• Undergraduate and graduate teaching labs where students require individual, safe, and self-contained stirring units without bench power dependency.
• Pharmaceutical QC release testing involving small-batch buffer equilibration or excipient dispersion prior to filtration or assay.
• Biotechnology workflows including antibody dilution series, enzyme reaction pre-mixing, and cell culture media component blending at ambient temperature.
• Maintenance of gentle agitation during extended incubation steps in microbiology or immunoassay development where thermal drift must be avoided (no heating function included).

FAQ

Can the TOPOLINO MOBIL be used with corrosive solvents such as concentrated HCl or acetone?
The PP workplate exhibits broad resistance to diluted acids and common organics, but prolonged exposure to concentrated mineral acids or strong oxidizers may cause surface degradation. Always consult IKA’s chemical compatibility chart before use.
Is the device suitable for continuous 24/7 operation?
No—it is rated for intermittent duty cycles with maximum recommended runtime of 12 hours per charge. Extended unattended use may accelerate battery aging and reduce speed consistency.
Does the unit include a stir bar?
No—stir bars are sold separately. Use only PTFE- or glass-coated bars ≤30 mm in length to ensure stable rotation and prevent vortex instability.
Can speed be calibrated or verified externally?
Yes—speed accuracy can be confirmed using a non-contact optical tachometer; IKA provides no factory calibration certificate, but users may document verification per internal SOPs.
What is the warranty coverage for the battery system?
IKA offers a 12-month limited warranty covering defects in materials and workmanship. Rechargeable AA cells are considered consumables and excluded from warranty coverage.