IKA EUROSTAR 100 digital Overhead Stirrer

Overview

The IKA EUROSTAR 100 digital is a high-performance overhead stirrer engineered for precision, reliability, and robust operation in demanding laboratory environments. Designed around a brushless DC motor architecture, it delivers consistent torque output and exceptional speed stability across a wide viscosity range — from low-viscosity aqueous solutions to highly structured media up to 70,000 mPa·s. Its core operating principle relies on closed-loop microprocessor-controlled speed regulation: real-time feedback from the motor shaft continuously compares actual rotational speed against the user-defined setpoint, enabling dynamic compensation for load-induced fluctuations. This ensures ±1 rpm accuracy above 300 rpm and ±1% deviation below 300 rpm — critical for reproducible mixing, dispersion, emulsification, and dissolution protocols where kinetic consistency directly impacts reaction kinetics or particle homogeneity. With a maximum stirring capacity of 100 L (water-equivalent) and continuous 100% duty-cycle capability, the EUROSTAR 100 digital supports extended batch processing without thermal derating.

Key Features

• Brushless DC motor delivering 142 W mechanical output power and peak torque of 100 N·cm — eliminating carbon brush wear and enabling maintenance-free long-term operation
• True infinitely variable speed control from 0/30 to 1300 rpm with LED 7-segment display for real-time RPM readout
• Integrated safety circuitry that automatically halts operation upon motor stall or sustained overload — compliant with EN 61000-6-2 (EMC immunity) and EN 61000-6-3 (EMC emission)
• Hollow shaft design (11 mm internal diameter) allowing simultaneous insertion of temperature probes, pH electrodes, or dosing needles during active stirring
• Universal chuck with 0.5–10 mm clamping range and quick-release mechanism for rapid impeller exchange
• Compact cast aluminum housing with thermoplastic polymer coating — IP40-rated for protection against solid ingress; optimized acoustic damping for <55 dB(A) operation at full load
• Error code diagnostics displayed via LED interface for rapid troubleshooting (e.g., E1 = overtemperature, E2 = overload, E3 = sensor fault)

Sample Compatibility & Compliance

The EUROSTAR 100 digital accommodates standard laboratory vessels (glass, stainless steel, or polymer) from 50 mL beakers to 100 L jacketed reactors. Its torque profile supports anchor, paddle, turbine, and helical impellers — suitable for Newtonian and non-Newtonian fluids including polymer melts, suspensions, pastes, and viscoelastic gels. While not certified for hazardous area use (ATEX/IECEx), its construction meets ISO 14644-1 Class 8 (100,000) cleanroom compatibility requirements for particulate generation. Electrical safety complies with IEC 61010-1:2010 (measurement/control equipment) and carries CE marking under the EU Machinery Directive 2006/42/EC.

Software & Data Management

This model operates as a standalone instrument without embedded software or digital connectivity (no RS232, USB, or analog output). All operational parameters are configured locally via front-panel controls. However, its deterministic speed regulation and error logging support GLP-compliant documentation when integrated into validated workflows — e.g., when used in conjunction with external data loggers recording time-stamped RPM, duration, and fault events per 21 CFR Part 11 audit trail requirements.

Applications

• High-shear dispersion of pigments, nanoparticles, and fillers in resin systems
• Controlled hydration and swelling of hydrocolloids (e.g., xanthan, carrageenan)
• Batch-wise synthesis requiring precise agitation profiles (e.g., polycondensation, transesterification)
• Stability testing of pharmaceutical suspensions and topical emulsions per USP & Ph. Eur. guidelines
• Preparation of homogeneous catalyst slurries for heterogeneous catalysis studies
• Cell culture media conditioning and buffer blending in bioprocess development

FAQ

Is the EUROSTAR 100 digital suitable for explosive atmospheres?

No — it lacks ATEX or IECEx certification and must not be operated in Zone 0, 1, or 2 hazardous locations.
Can it operate continuously for 24 hours?

Yes — rated for 100% continuous duty cycle within ambient conditions of 5–40 °C and ≤80% RH.
Does it support bidirectional rotation?

No — rotation is unidirectional only (clockwise by default).
What impeller types are recommended for high-viscosity applications?

Anchor, helical ribbon, or double-helix impellers with close-clearance geometry are optimal for viscosities >10,000 mPa·s.
Is calibration traceable to national standards?

Speed calibration is factory-verified using NIST-traceable tachometric reference instruments; full calibration certificates are available upon request.