IKA TWISTER SET 1 Magnetic Stirrer

Overview

The IKA TWISTER SET 1 is a compact, single-position magnetic stirrer engineered for precision, reproducibility, and intuitive operation in modern research and quality control laboratories. Based on permanent magnet coupling and brushless DC motor technology, it delivers controlled rotational motion to magnetic stir bars without mechanical contact—ensuring contamination-free mixing, low maintenance, and high operational reliability. Unlike conventional stirrers with alphanumeric displays, the TWISTER SET 1 employs a 360° chemical-resistant LED glass interface that conveys real-time status through dynamic light patterns and intensity gradients—eliminating ambiguity in parameter interpretation while supporting glove-compatible interaction. Its IP66-rated housing enables operation under demanding environmental conditions, including direct rinsing under running water and continuous use inside incubators up to 40 °C. Designed as the foundational unit of the modular TWISTER platform, the SET 1 supports seamless expansion to multi-position configurations via optional HUB-based networking—making it equally suitable for routine benchtop tasks and scalable process development workflows.

Key Features

• Intuitive 360° LED Glass Interface: Provides visual feedback for speed, power load, viscosity trend (% change), and vessel presence—no text-based display required.
• Vessel Recognition Technology: Detects container placement via integrated capacitive sensing, enabling automatic start/stop functionality upon vessel contact.
• Programmable Bidirectional Rotation: Reverses rotation direction at user-defined intervals to enhance homogenization of viscous or heterogeneous samples.
• Viscosity Trend Monitoring: Dynamically tracks and displays relative viscosity changes during stirring—valuable for monitoring reaction progress or polymer dissolution kinetics.
• Modular Architecture: Supports daisy-chaining of up to 16 units via optional HUB controller; enables master-slave synchronization and independent group control (up to 6 groups).
• Robust Environmental Rating: IP66 protection ensures resistance to dust ingress and high-pressure water jets—validated per DIN EN 60529.
• Low-Power, High-Efficiency Drive: 5 W motor output with ±2 % speed stability (at 1500 rpm, no-load, 25 °C) and adjustable acceleration ramp (HUB-dependent).

Sample Compatibility & Compliance

The TWISTER SET 1 accommodates standard laboratory vessels from microcentrifuge tubes (8 mL) to 5 L beakers when used with compatible accessories (e.g., TW.IX multi-position adapter or TW.VX vortex module). Stir bar compatibility spans 10–30 mm lengths, supporting PTFE-, PTFE/samarium-cobalt-, and custom-coated geometries for varied chemical resistance and torque requirements. The device complies with IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and meets electromagnetic compatibility standards per EN 61326-1. Its sealed design aligns with GLP-compliant environments where traceability and operational integrity are critical. While not intrinsically rated for explosive atmospheres, its non-sparking drive architecture and absence of exposed electrical contacts reduce ignition risk in standard organic solvent handling scenarios.

Software & Data Management

When equipped with optional communication interfaces (RS232, USB, Bluetooth, or Wi-Fi), the TWISTER SET 1 integrates into centralized lab management systems. Firmware updates and configuration backups are performed via IKA Labworld software, which supports audit-trail generation compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, user access levels, and immutable event logging. All programmable parameters—including timer settings, reversal intervals, graphical profiles, and group assignments—are stored in non-volatile memory and retain calibration across power cycles. Remote monitoring capabilities enable real-time visualization of speed, power draw, and viscosity trends across multiple networked units—facilitating cross-bench correlation studies and automated protocol execution within validated workflows.

Applications

• Buffer and reagent preparation in molecular biology and cell culture labs
• Homogenization of suspensions containing nanoparticles, catalysts, or precipitated proteins
• In-process monitoring of sol-gel transitions and polymerization kinetics
• Extraction protocols requiring intermittent agitation (e.g., solid-phase extraction, SPE)
• Quality assurance testing of viscosity-sensitive formulations (e.g., pharmaceutical gels, cosmetic emulsions)
• Multi-vessel parallel screening in combinatorial chemistry and formulation development
• Environmental sample digestion under controlled thermal-mechanical conditions (when paired with external heating blocks)

FAQ

Can the TWISTER SET 1 operate inside a CO₂ incubator?
Yes—the device is rated for continuous operation at ambient temperatures up to 40 °C and maintains full functionality under humidified, CO₂-rich atmospheres. Its IP66 enclosure prevents condensation-related failure.
Is vessel recognition mandatory for operation?
No—it is an optional feature that can be disabled via configuration mode; manual start/stop remains fully functional using the touch interface.
What is the maximum viscosity this unit can handle?
Under standard conditions (25 °C, 5 L water, 30 mm stir bar), the TWISTER SET 1 achieves stable agitation up to ~500 mPa·s. Performance at higher viscosities depends on stir bar geometry, vessel shape, and temperature.
Does the optional HUB require external power?
Yes—the HUB is a powered distribution and control unit that supplies regulated 24 V DC to connected TWISTER units and manages synchronization logic.
Are firmware updates backward-compatible across TWISTER generations?
IKA maintains versioned firmware release notes; updates released after Q3 2022 support all TWISTER models manufactured from 2020 onward, including legacy SET 1 units with serial numbers ≥2020-XXXXXX.