IKA T25 Digital Display Ultra-Turrax Homogenizer

Overview

The IKA T25 Digital Display Ultra-Turrax Homogenizer is a high-performance, benchtop-driven rotor-stator homogenizer engineered for reproducible mechanical dispersion, emulsification, and cell disruption in research and quality control laboratories. Based on the Couette flow principle, the device generates intense shear forces through precise relative motion between a rapidly rotating rotor and a fixed stator—enabling efficient particle size reduction, uniform suspension formation, and homogenization of heterogeneous samples across a broad viscosity range (up to 5,000 mPa·s). Designed and manufactured in Staufen, Germany, the T25 integrates a robust triple-bearing motor shaft architecture to ensure mechanical stability during extended operation under variable load conditions. Its compact footprint (60 × 80 × 240 mm) and low mass (1.6 kg) facilitate integration into fume hoods, glove boxes, or modular reactor setups—including applications involving vacuum or pressurized vessels. The instrument is routinely deployed in environmental analysis (e.g., wastewater homogenization prior to metal speciation), pharmaceutical formulation development, clinical diagnostics (tissue lysate preparation), and bioprocess sampling.

Key Features

• Digital LED speed display with real-time feedback—ensuring traceable, operator-independent parameter setting and documentation
• Continuous variable speed control from 3,500 to 24,000 rpm, enabling fine-tuned optimization for sensitive biological matrices or highly viscous suspensions
• Triple-bearing drive shaft design—minimizing radial runout and vibration, thereby enhancing long-term rotational accuracy and reducing maintenance frequency
• Integrated electronic overload protection—automatically limiting torque output to prevent motor stall or thermal damage during transient high-load events
• Dedicated tachometer interface for external speed verification and calibration traceability (e.g., using optical or magnetic tachometers per ISO 2789)
• IP20-rated housing—suitable for standard laboratory environments with ambient temperatures between 5–40 °C and humidity ≤80 % RH (non-condensing)
• Modular tooling system—compatible with a full family of IKA-certified dispersing elements (S-line, Y-line, micro-tip, and saw-tooth geometries), each validated for specific shear profiles and volume scalability

Sample Compatibility & Compliance

The T25 accommodates sample volumes from 1 mL to 2,000 mL (in water-equivalent media), supporting both small-scale screening and mid-volume batch processing. It is routinely used with aqueous, organic, and surfactant-containing systems—including sludge digestates, polymer dispersions, bacterial cultures, and tissue homogenates. All rotor-stator assemblies are constructed from corrosion-resistant stainless steel (1.4404 / AISI 316L) and undergo dimensional validation per DIN EN ISO 9001 manufacturing protocols. While the base unit does not carry CE marking for medical device use, it complies with EN 61000-6-2 (immunity) and EN 61000-6-3 (emission) standards for laboratory equipment. When operated with validated accessories and documented SOPs, the system supports GLP-compliant workflows and can be included in FDA 21 CFR Part 11–aligned data integrity frameworks when paired with compliant software logging.

Software & Data Management

The T25 operates as a standalone analog-controlled instrument; no embedded firmware or proprietary software is required for basic function. However, its tachometer output port enables connection to third-party data acquisition systems (e.g., LabVIEW, MATLAB, or PLC-based SCADA) for time-synchronized speed logging and audit trail generation. For regulated environments, users may integrate the device into electronic lab notebook (ELN) platforms via manual entry or barcode-scanned parameter capture—ensuring alignment with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Calibration records for speed accuracy (±2% full scale, verified annually per ISO/IEC 17025-accredited service providers) and mechanical wear inspection logs are recommended for GMP-relevant applications.

Applications

• Environmental testing: Homogenization of sewage sludge, sediment cores, and biofilm samples prior to heavy metal extraction (EPA Method 3050B, ISO 11466)
• Pharmaceutical QC: Preparation of uniform suspensions for dissolution testing (USP ) and particle size distribution analysis (ISO 13320)
• Clinical microbiology: Lysis of Gram-negative and Gram-positive bacteria for PCR template preparation (CLSI M02-A12)
• Materials science: Dispersion of nanocellulose, carbon black, or ceramic nanoparticles in polymeric matrices
• Food safety: Homogenization of composite food samples for mycotoxin or pesticide residue analysis (AOAC 2007.01)

FAQ

What is the maximum recommended operating time for continuous use?
The T25 is rated for uninterrupted operation up to 30 minutes at speeds ≥15,000 rpm. For extended cycles (>30 min), intermittent duty (e.g., 30 min ON / 10 min OFF) is advised to maintain thermal stability and bearing longevity.
Can the T25 be used under vacuum or positive pressure?
Yes—provided the selected dispersing tool and vessel sealing configuration are rated for the target pressure differential. IKA offers vacuum-compatible stand bases (R1826) and PTFE-coated clamps for such applications.
Is speed calibration traceable to national standards?
Yes—calibration services performed by IKA-authorized labs provide NIST-traceable certificates documenting speed deviation against reference optical tachometers per ISO 16063-21.
Are rotor-stator assemblies autoclavable?
All stainless steel dispersing elements are autoclavable at 121 °C / 2 bar for 20 minutes; however, repeated sterilization cycles may affect tip geometry over time—visual inspection and periodic performance verification are recommended.
Does the T25 meet requirements for ISO/IEC 17025-accredited testing labs?
As a measurement-capable instrument (speed being a key controlled parameter), it satisfies Clause 6.4.10 (Equipment Verification) when accompanied by documented calibration, maintenance history, and uncertainty evaluation per ISO/IEC 17025:2017 Annex A.3.