Thermo Fisher Scientific Cimarec Mobil 10 and Mobil 25 Magnetic Stirrers (Standalone Units, No Integrated Controller)

Overview

The Thermo Fisher Scientific Cimarec Mobil 10 and Mobil 25 magnetic stirrers are precision-engineered standalone laboratory instruments designed for reliable, contamination-free mixing in demanding thermal and environmental conditions. Unlike conventional benchtop stirrers with integrated electronics, both models operate without an onboard speed or temperature controller—requiring external actuation via the Telemodul 10 M controller (sold separately). This architecture decouples control logic from the stirring unit, enhancing electromagnetic compatibility (EMC), simplifying sterilization protocols, and supporting integration into automated workflows governed by GLP/GMP or ISO/IEC 17025-compliant environments. The Mobil 10 features a compact circular footprint optimized for space-constrained workbenches, while the Mobil 25 is rated IP68 and validated for continuous operation inside autoclaves (up to 121 °C, 2 bar), water baths, incubators, and chemical fume hoods. Both units employ high-torque neodymium magnet drives coupled with PTFE-coated stir bars to ensure consistent rotational coupling across viscosities up to 10,000 mPa·s (typical for aqueous polymer solutions and cell culture media).

Key Features

• Stainless steel (316L-equivalent) monobloc housing—no seams, crevices, or gaskets—to prevent microbial entrapment and resist corrosion from acids, bases, and organic solvents
• Zero-crossing soft-start algorithm ensures smooth acceleration and eliminates mechanical shock to sensitive samples (e.g., protein aggregates or fragile cell suspensions)
• Emergency stop function halts rotation within ≤2 seconds upon command or loss of magnetic coupling—critical for safety-critical applications including biopharmaceutical buffer preparation
• Mobil 25 certified to IP68: fully submersible and operational under steam-saturated conditions at 121 °C, enabling in-situ mixing during sterilization cycles per EN 285 and ISO 17665 standards
• Speed stability ±2% over full 100–1000 rpm range, verified per ASTM E2919-21 for rotational equipment performance validation
• No internal electronics or batteries—eliminates failure modes associated with heat-induced component drift or moisture ingress

Sample Compatibility & Compliance

Both stirrers accommodate standard cylindrical or flat-bottomed glass, stainless steel, or polypropylene vessels up to 25 L volume. Compatible stir bars include PTFE-encapsulated, PTFE/glass composite, and chemically inert ceramic-core variants (diameters 10–40 mm; lengths 30–120 mm). The Mobil 25’s seamless construction meets USP requirements for aseptic compounding surfaces and supports cleaning validation per FDA Guidance for Industry: Sterile Drug Products Produced by Aseptic Processing (2004). All units comply with EU Directive 2014/30/EU (EMC), 2011/65/EU (RoHS), and IEC 61010-1:2010 for laboratory electrical equipment safety.

Software & Data Management

As controller-free devices, the Mobil 10 and Mobil 25 do not generate or store operational data internally. When paired with the Telemodul 10 M controller, they support analog 0–10 VDC speed input and digital RS485 Modbus RTU communication. This enables traceable parameter logging, audit trail generation, and integration into SCADA or LIMS platforms compliant with 21 CFR Part 11 (electronic records and signatures). Firmware updates and calibration verification logs are maintained externally on the controller—ensuring full data integrity and revision control.

Applications

• Buffer and media preparation in upstream bioprocessing (e.g., PBS, Tris-HCl, DMEM/F12)
• In-situ mixing during autoclave validation studies and depyrogenation cycles
• Homogenization of high-viscosity hydrogels, nanoparticle dispersions, and emulsions in R&D labs
• Long-duration stability testing under controlled thermal stress (−10 °C to +121 °C)
• Continuous agitation in CO₂ incubators and anaerobic chambers where electronic interference must be minimized

FAQ

Do the Mobil 10 and Mobil 25 include built-in speed or temperature controllers?
No. Both models are designed as controller-free units and require external actuation via the Telemodul 10 M controller.
Can the Mobil 25 be operated inside a pressurized autoclave chamber?
Yes. It is validated for continuous operation at 121 °C and 2 bar pressure, meeting EN 285 Class B autoclave requirements.
What is the maximum viscosity these stirrers can handle reliably?
Up to 10,000 mPa·s with appropriately sized PTFE-coated stir bars and vessel geometry (tested per ISO 3219:2022 Annex D).
Are replacement stir bars and mounting accessories available through Thermo Fisher?
Yes. Certified stir bars, vessel clamps, and Telemodul 10 M interface cables are catalogued under Thermo Fisher part numbers 88840001 (Mobil 25 stir bar kit) and 88840002 (controller interface bundle).
Does the stainless steel housing meet FDA 21 CFR 178.3570 requirements for indirect food additives?
The 316L-equivalent material complies with FDA 21 CFR 178.3570 for stainless steel components in contact with food-processing liquids; documentation available upon request.