IKA EUROSTAR 400 digital Overhead Stirrer

Overview

The IKA EUROSTAR 400 digital is a high-performance overhead stirrer engineered for precision, reliability, and operational safety in demanding laboratory environments. Based on brushless DC motor technology, it eliminates carbon brush wear—ensuring consistent torque delivery, extended service life, and minimal maintenance across continuous operation cycles. Its dual-range speed architecture (6–400 rpm and 30–2000 rpm) enables optimized performance for both high-viscosity applications (up to 100,000 mPa·s) and low-viscosity, high-shear mixing tasks—supporting volumetric capacities up to 150 L of water-equivalent media. Real-time microprocessor-based speed control continuously monitors actual shaft rotation against setpoint values and dynamically compensates for load-induced deviations—maintaining stable rotational velocity even during significant viscosity shifts or transient overloads. This closed-loop regulation is critical for reproducible reaction kinetics, emulsification consistency, and suspension homogeneity in QC, R&D, and pilot-scale synthesis workflows.

Key Features

• Brushless DC motor with integrated thermal protection and electronic overload detection
• True infinitely variable speed control with ±1 rpm setting resolution and real-time feedback compensation
• Dual-torque operating modes: high-torque Range I (400 N·cm) for viscous pastes and gels; high-speed Range II (80 N·cm) for rapid dispersion of low-viscosity liquids
• Hollow shaft design (ID 10.3 mm) permits insertion of temperature probes, pH electrodes, or sampling needles without interrupting agitation
• IP 42-rated enclosure ensures resistance to vertically falling drops and solid objects ≥1 mm—suitable for standard wet-lab conditions
• LED seven-segment display with error code diagnostics (e.g., E01 = overload, E02 = motor stall, E03 = sensor fault)
• Integrated safety circuit halts operation within milliseconds upon detection of motor stall, excessive current draw, or thermal threshold breach
• Compact footprint (114 × 325 × 245 mm) and 8.4 kg mass facilitate mounting on fume hoods, reactor frames, or modular lab benches

Sample Compatibility & Compliance

The EUROSTAR 400 digital accommodates a broad spectrum of sample rheologies—from Newtonian aqueous solutions to non-Newtonian polymer melts, ceramic slurries, and pharmaceutical suspensions. Its fixed clamp chuck (3–16 mm jaw range) secures standard ISO-standardized stirring shafts and custom impellers—including anchor, paddle, propeller, and helical ribbons—enabling method transfer across scales. The device complies with DIN EN 61000-6-3 (EMC emission limits) and DIN EN 61000-6-2 (immunity requirements), and meets essential safety provisions of DIN EN 61010-1 for electrical equipment used in laboratory settings. While not intrinsically rated for hazardous area use, its robust mechanical architecture and thermal management support GLP-aligned validation protocols when paired with documented calibration procedures per ISO/IEC 17025.

Software & Data Management

This standalone instrument operates without proprietary software dependencies. All operational parameters—including set speed, actual speed, torque load percentage, runtime, and fault logs—are accessible via the front-panel interface. For integration into automated workflows, the optional IKA Labworldsoft® software (v6.0+) supports RS232 communication to log timestamped speed/torque profiles, trigger external events (e.g., dosing pumps), and generate audit-trail-compliant reports aligned with FDA 21 CFR Part 11 requirements when deployed with user authentication and electronic signature modules. Calibration certificates traceable to national standards (e.g., PTB, NIST) are available upon request for IQ/OQ/PQ documentation packages.

Applications

• Chemical synthesis: Controlled addition and mixing in exothermic Grignard or Friedel-Crafts reactions
• Pharmaceutical formulation: Homogenization of ointments, creams, and sustained-release suspensions under GMP-relevant conditions
• Materials science: Dispersion of nanomaterials (e.g., graphene oxide, TiO₂ nanoparticles) in polymer matrices
• Food & beverage R&D: Viscosity-controlled blending of dairy concentrates, plant-based emulsions, and functional ingredient suspensions
• Environmental testing: Preparation of standardized sediment slurry reference materials per ASTM D4318 and ISO 14688
• Educational laboratories: Demonstrating shear-thinning behavior, yield stress determination, and power number correlations

FAQ

Is the EUROSTAR 400 digital compatible with third-party stirring shafts and impellers?
Yes—it accepts any ISO-standardized stirring shaft with diameters between 3 mm and 16 mm, including those from Sartorius, Thermo Fisher, and VWR.
Can it operate continuously for 24/7 production runs?
It is rated for 100% duty cycle under ambient conditions ≤40 °C and ≤80% RH; however, sustained high-torque operation (>300 N·cm) requires periodic thermal monitoring and airflow clearance ≥5 cm around ventilation grilles.
Does it support analog or digital process control interfaces?
The unit features an RS232 port for serial command input/output; analog 0–10 V or 4–20 mA interfaces require the optional IKA Connect module (Order No. 3020000000).
What is the warranty coverage and service support structure?
IKA provides a 24-month limited warranty covering parts and labor; extended service plans and on-site calibration services are available through authorized IKA Service Partners in EMEA, North America, and APAC regions.
How is torque calibrated and verified during qualification?
Torque accuracy is factory-verified using traceable dynamic torque sensors (class 0.5 per ISO 6789); users may perform functional checks using certified reference loads or comparative viscosity standards (e.g., NIST SRM 2490c).