IKA LR 1000.41 Shaft holder for T 25 disperser, 0004664300

Kinematic coupling and high-shear integration

In the demanding formulation development of nanoparticles, ultra-fine cosmetic emulsions or pharmaceutical suspensions, macroscopic mixing using conventional anchor stirrers is often insufficient from a process engineering perspective. To break down the smallest primary particles or droplets, the localised, intense application of shear forces via rotor-stator systems is absolutely essential. The IKA LR 1000.41 shaft mount is the critical mechanical interface for the positive-lock, secure integration of high-speed dispersing drives – specifically the IKA T 25 digital LR – into the closed LR 1000 laboratory reactor system. This adapter component enables the physical transformation of the reactor from a simple stirred vessel into a thermodynamically controlled high-shear homogeniser.

Vibration mechanics and resonance suppression

The drive of an IKA T 25 disperser generates enormous kinetic energy at rotational speeds of up to 25,000 revolutions per minute. Even with perfectly balanced dispersing tools, the turbulent flow dynamics in the reactor medium inevitably give rise to high-frequency lateral vibrations. The LR 1000.41 shaft mount is geometrically and statically engineered to precisely absorb these mechanical vibrations. It guarantees the absolute axial alignment (centring) of the dispersing tool within the reactor vessel. This rigid mechanical fixation is of essential importance, as any eccentricity or imbalance would immediately cause mechanical failure of the sensitive FFPM mechanical seals on the vacuum dispersing tools (such as the KD-LR) under hydrostatic pressure.

Process flexibility and scale-up

The design of the shaft mount allows for a modular and highly reproducible workflow. It enables the process engineer to lower the heavy 800-watt drive motor absolutely vertically and without tension onto the reactor’s standard-threaded lid and lock it in place mechanically. This enables complex multi-step syntheses to be carried out within the same batch: for example, a polymer can first be melted and homogenised under vacuum using an anchor stirrer, and then – following a smooth mechanical changeover to the dispersion drive via the LR 1000.41 mount – be mixed with active ingredients under high-shear conditions.

Technical details

• Product type: Mechanical shaft coupling / motor adapter
• Kinematic function: Axial alignment and vibration-free mounting of high-performance drives
• Compatible drive: Designed for the IKA T 25 digital LR disperser
• Compatible reactor system: IKA LR 1000 basic and LR 1000 control
• Mechanical property: Absorbs lateral vibrations at speeds of up to 25,000 rpm
• Compatible tools: Ensures the integrity of S 25 KD-LR vacuum dispersing tools
• Material: Torsion-resistant industrial metals for maximum mechanical strength
• Installation: Tool-free attachment to the laboratory reactor lid system

Contents of delivery

• 1 x IKA LR 1000.41 shaft mount

(Important note: The IKA LR 1000 reactor vessel, the T 25 dispersing drive and the dispersing tools are not included in the scope of delivery!)

Custom requirements & accessories

The shaft holder is purely a connecting element. To initiate the physical dispersion process in the reactor, you must have the IKA T 25 digital LR drive (item no. 0020008820) and a vacuum-tight rotor-stator tool from the KD-LR series (e.g. S 25 KD - LR - 25 G). Please contact our procurement service at any time for a statically and kinematically correct configuration of your modular reaction system.