IKA S 25 D - 14 G - KS disposable dispersing tool (12 pieces), plastic, Ø 14 mm, 0003452100

Maximum analytical reliability for medium and large volumes: the IKA S 25 D - 14 G - KS disposable dispersing tool

In modern, highly specialised laboratory analysis, medical and clinical diagnostics, and forensic evidence collection, sample preparation forms the absolute, critical foundation for all subsequent investigations. When grinding animal and plant tissue samples, homogenising viscous cell cultures or processing infectious environmental materials using a high-performance disperser from the renowned IKA T 25 series, immense mechanical shear forces are at work. These physical forces inevitably force microscopically small, often invisible components of the sample deep into the mechanical gaps and internal plain bearings of the tool being used. Unless a conventional reusable stainless-steel tool is painstakingly dismantled, chemically cleaned, brushed and then sterilised in an autoclave after every single sample, there is a risk of cross-contamination (known as ‘carry-over’), which is dreaded by laboratory technicians. To finally eliminate this highly critical, extremely time-consuming and error-prone problem from your day-to-day laboratory work, IKA has developed the revolutionary S 25 D - 14 G - KS single-use dispersing tool (MPN 0003452100). Supplied in a cost-effective and practical pack of 12, this tool, made from high-quality medical-grade plastic, offers uncompromising homogenisation performance whilst ensuring absolute protection against any sample carry-over.

The end of cross-contamination in highly sensitive processes

The fundamental and truly groundbreaking concept behind the “KS” (plastic) series is based on the strict single-use principle. In highly sensitive fields such as PCR (polymerase chain reaction) analysis, preparation for next-generation sequencing (NGS) or toxicological investigations in forensic medicine, even a single, invisibly carried-over DNA molecule or a tiny trace of an active substance from a previous sample can lead to so-called false-positive results. At best, such catastrophic misinterpretations ‘merely’ ruin an extremely expensive and time-consuming series of experiments; at worst, however, they can lead to fundamentally incorrect medical diagnoses or chains of evidence that are inadmissible in court. By using the IKA S 25 D - 14 G - KS, you eliminate this enormous analytical risk one hundred per cent. For each new patient or environmental sample, you remove a completely fresh, unused and hygienically impeccable tool directly from its packaging. After the dispersion process, the plastic tool is simply disposed of properly as clinical waste, together with the potentially infectious or contaminated residual sample. The error-prone, extremely time-consuming and expensive cleaning and sterilisation cycle required for conventional stainless steel tools is completely eliminated, raising your process reliability and compliance with standards (GLP/GMP) to an unprecedented level.

The 14-millimetre advantage: powerful for medium to large volumes

In direct comparison with the smaller 10-mm instruments, this S 25 D - 14 G - KS model stands out due to its significantly larger stator diameter of 14 millimetres (indicated by the ‘14’ in the product designation). This larger size greatly expands the tool’s efficient operating range: you can homogenise sample volumes ranging from 10 millilitres up to a substantial 500 millilitres (based on the viscosity of water) effortlessly, quickly and with absolute reproducibility. The additional abbreviation “G” stands for a coarse slot geometry on the stator. This open, high-throughput geometry is of fundamental importance when dealing with coarse-grained, extremely viscous or highly fibrous raw materials. Sturdy plant roots, tough muscle tissue, tough cartilage, coated pharmaceutical tablets or compact food samples are drawn deep into the shear gap by the powerful axial suction forces of the 14-mm rotor. There, at speeds of up to 24,000 revolutions per minute, they are cut and pulverised into their finest components by the sharp plastic edges.

Cost-effectiveness and Total Cost of Ownership (TCO) in the modern laboratory

At first, cursory glance, the ongoing purchase of disposable tools is very often regarded as an additional and unnecessary cost factor. However, a detailed full-cost analysis (Total Cost of Ownership) in real-world laboratory practice proves the exact opposite in almost every case. The purchase cost of a single IKA S 25 D disposable tool is significantly lower than the cumulative cost of the expensive working time spent daily by a highly qualified laboratory technician at the sink, dismantling, laboriously scrubbing and reassembling traditional stainless steel tools. Added to this are the substantial, often hidden savings on expensive, aggressive cleaning chemicals, the high energy and water consumption of the autoclave, and the inevitable and costly wear and tear on PTFE slide bearings and seals in stainless steel models. By consistently utilising single-use technology, analytical laboratories drastically increase their sample throughput. Highly qualified staff are freed from repetitive, tedious cleaning tasks and can finally concentrate fully once again on the actual, value-adding scientific analysis of the data.

System integration for maximum occupational safety (aerosol protection)

The IKA S 25 D - 14 G - KS is designed as a precisely fitting original accessory exclusively for the globally proven IKA T 25 dispersion drives. It can be coupled seamlessly and without play to the T 25 digital, the T 25 easy clean digital and the T 25 easy clean control. Another advantage of this system, which is absolutely crucial and indispensable for modern occupational health and safety, is its 100% compatibility with IKA disposable tubes (such as the S 18/25-ET50 tube). Simply attaching this protective tube to the tool shaft creates a completely self-contained system. When dispersing infectious bacterial cultures, highly toxic chemicals or extremely foul-smelling environmental samples at maximum speed, this ensures that no dangerous splashes or invisible, respirable aerosols can escape into the laboratory environment or the fume cupboard. In doing so, you not only effectively protect yourself and your staff from dangerous pathogens, but also prevent, in the long term, the unnoticed external contamination of your valuable laboratory instruments, balances and pipettes in the immediate vicinity.

Technical data

• Product type: Disposable dispersing tool (rotor-stator principle)
• Packaging unit (PU): 12 pieces per box
• Material: High-quality, dimensionally stable and chemical-resistant plastic (PC/polymer blend)
• Stator diameter: 14 mm
• Rotor diameter: approx. 10.3 mm
• Working range (H₂O volume): 10 – 500 ml
• Slot geometry: Coarse (G) for extremely high material throughput with solid/tough samples
• Maximum permissible speed: up to 24,000 rpm (depending on the T 25 drive used)
• Immersion depth: 15 – 85 mm
• Max. permissible operating temperature: 100 °C
• Compatible drives: IKA T 25 digital, T 25 easy clean digital, T 25 easy clean control
• Sterilisable: No (Purely a single-use item to strictly prevent contamination)

Contents

• 1 x box containing 12 IKA S 25 D - 14 G - KS disposable plastic dispersing tools

(Important note: The essential IKA T 25 drive motor, as well as any sample vessels or ET50 protective tubes that may be required, are available separately and are expressly not included in this scope of delivery.)

Individual requirements & accessories

To fully exploit the potential of this tool in terms of occupational safety and aerosol protection, we strongly recommend combining it with the IKA S 18/25-ET50 disposable tube, which fits seamlessly onto the shaft of this 14 mm tool and acts as a hermetic splash guard. Do you need to process very small sample volumes (under 100 ml) with high precision? If so, simply switch to the smaller version, the S 25 D - 10 G - KS (with a 10 mm stator), for these applications. Our experienced procurement service will be happy to advise you on selecting the ideal tool sizes and establishing optimal Standard Operating Procedures (SOPs) for your contamination-free sample preparation.