Thermo Scientific HAAKE MARS iQ Rotational Rheometer

Overview

The Thermo Scientific™ HAAKE™ MARS™ iQ Rotational Rheometer is an engineered platform for precision-controlled, high-reproducibility rheological characterization of complex fluids and soft solids. Based on Couette and cone-plate rotational measurement principles, it delivers quantitative viscoelastic data—including shear viscosity, storage modulus (G′), loss modulus (G″), yield stress, and thixotropic recovery—under controlled shear rate, shear stress, or oscillatory conditions. Designed specifically for quality control (QC) and routine R&D laboratories, the MARS iQ integrates mechanical robustness with intuitive human-machine interaction to minimize operator dependency while maintaining metrological traceability. Its rigid H-frame architecture—cast from high-damping mineral composite—ensures minimal thermal drift and exceptional mechanical stability during extended testing cycles, supporting compliance with ISO 17025 laboratory accreditation requirements.

Key Features

• 7-inch capacitive touchscreen interface with guided SOP execution and real-time parameter feedback
• “Connection Assistant” function enabling automatic recognition of transducers, temperature modules, and measuring geometries via embedded RFID tags
• Color-coded plug-and-play temperature module interface (e.g., Peltier, electrically heated, cryogenic) for rapid system reconfiguration
• New-generation EC motor with dual bearing options: high-stiffness mechanical ball bearing (standard) or optional air bearing for ultra-low torque measurements
• Integrated normal force sensor capable of bidirectional axial force detection (±100 N), essential for texture analysis, slip correction, and compressive rheology
• Foldable H-frame design offering vertical travel range up to 120 mm and sub-micron positioning repeatability
• Chemically resistant housing and mineral composite base providing long-term dimensional stability and vibration damping

Sample Compatibility & Compliance

The MARS iQ accommodates a broad spectrum of sample classes—from low-viscosity solvents and polymer melts to highly filled pastes, gels, and architectural mortars—using interchangeable geometries including concentric cylinders, parallel plates, cone-and-plate, and vane fixtures. Optional application-specific modules extend functionality to building materials (ASTM C1437, EN 1015-3), pharmaceutical suspensions (USP ), and food texture profiling (ISO 11036). The system supports GLP/GMP workflows through optional 21 CFR Part 11-compliant software modules, including electronic signatures, audit trails, and role-based access control. All firmware and calibration routines are traceable to NIST-certified standards.

Software & Data Management

HAAKE RheoWin™ software serves as the central control and analysis environment, supporting both real-time instrument operation and post-processing of time sweeps, frequency sweeps, amplitude sweeps, and creep/recovery tests. The platform includes built-in ASTM/ISO method templates, customizable report generation (PDF/Excel), and raw data export in ASCII format for third-party analysis. Version updates are provided free of charge throughout the instrument’s service life. For regulated environments, the optional Compliance Pack enables full 21 CFR Part 11 adherence—including user authentication logs, immutable data archiving, and change history tracking—with validation documentation available upon request.

Applications

• Coatings & Inks: Shear-thinning behavior, leveling and sag resistance evaluation, pigment dispersion stability
• Pharmaceuticals: Gelation kinetics of hydrogels, injectability assessment of semi-solids, excipient compatibility screening
• Food Science: Yield stress determination in yogurts and sauces, starch gelatinization profiling, fat crystal network evolution
• Polymers & Adhesives: Melt viscosity vs. shear rate, crosslinking kinetics, tack and peel performance modeling
• Construction Materials: Rheology of self-compacting concrete, fresh mortar workability, bitumen aging simulation
• Personal Care: Viscosity build-up in shampoos, emulsion stability under thermal cycling, sensory attribute correlation

FAQ

What bearing type is standard on the MARS iQ?

The standard configuration uses a high-precision mechanical ball bearing system optimized for QC throughput and long-term reliability. Air-bearing variants are available as factory-configured options for ultra-sensitive low-torque applications.
Is the instrument compatible with ASTM and ISO rheological test methods?

Yes—the MARS iQ supports method implementation per ASTM D4402, ISO 3219, ISO 6721-10, and EN 13282, with preloaded templates and calibration verification protocols included in RheoWin.
Can I upgrade my existing MARS iQ to meet 21 CFR Part 11 requirements?

Yes—compliance-ready software modules, including electronic signature capability and full audit trail functionality, can be licensed and installed remotely or onsite by certified Thermo Fisher service engineers.
What is the typical warm-up time for temperature-controlled measurements?

With the standard Peltier temperature module (−10 °C to +120 °C), stabilization to ±0.1 °C typically requires less than 15 minutes across the mid-range; cryogenic or high-temperature modules have extended equilibration times documented in respective technical specifications.
Does the system support automated sample loading?

While fully automated robotic sample handling is not integrated, the MARS iQ features lateral and bottom-access design elements that enable seamless integration with third-party autosamplers and custom fluidic manifolds for unattended multi-sample testing.