IKA MultiDrive MI 400.2 star blade, stainless steel, for MI 400, 0020023171
€146.25
% Manufacturer's RRP: €195.00 25% below manufacturer's RRP
- Star blade for fibrous, tough samples
- Shear comminution for 400 ml volumes
- Star geometry reduces mechanical entanglement
- Solid, highly wear-resistant, corrosion-resistant stainless steel
- For the MI 400 grinding chamber
- Autoclavable, conditions according to the IKA operating instructions
ⓘ This product description has been translated from German using AI. Despite careful review, we do not guarantee that the translation is error-free; in case of doubt, the German version shall prevail.
Product information "IKA MultiDrive MI 400.2 star blade, stainless steel, for MI 400, 0020023171"
Kinetics of cutting and shear comminution at larger scale
In large-volume materials science and biological sample preparation, tough, elastic and extremely fibrous matrices (such as plastics, textiles, paper or dense root tissue) present a major physical challenge. Elastic materials absorb kinetic impact energy rather than breaking. The IKA MultiDrive MI 400.2 star blade is geometrically engineered for high-precision cutting and shear comminution in the scaled 400 ml grinding chamber. Driven by the MultiDrive base station at speeds of up to 20,000 revolutions per minute, the solid star blades sever the macromolecular fibre structures by applying massive, localised shear stresses. This pulling cut continuously disaggregates the sample material and transforms it into a homogeneous, free-flowing matrix, even with large batch volumes.
Macro-fluid dynamics and the prevention of rotational blockages
A fundamental mechanical problem in the high-speed grinding of long fibres, which is further exacerbated by increased flow turbulence in large-volume chambers, is the so-called wrapping effect. Fibrous materials tend to wrap themselves around the rotating tool shaft. This leads to an exponential increase in torsional resistance, which can cause the drive motor to overheat. The MI 400.2 star blade overcomes this rheological phenomenon thanks to its multi-bladed star geometry, which is calculated to match the radius of the 400-ml chamber. The enlarged blades direct the sample material radially outwards towards the chamber wall and systematically cut the fibres long before static wrapping structures can form around the shaft.
Material integrity and mechanical resilience
To withstand the continuous mechanical abrasion caused by tough polymers or woody biomass in large batches, the star blade is manufactured from solid, highly wear-resistant stainless steel. The corrosion-resistant, single-material design can be cleaned and, under the conditions in the IKA operating instructions, sterilised in an autoclave, which reduces the risk of carry-over between large batches.
Technical details
- Product type: Star blade (cutting tool for large volumes / spare part)
- Processing principle: Cutting and shear comminution
- Physical scope of application: Tough, elastic and fibrous sample matrices
- Compatibility (vessel): IKA MultiDrive MI 400 and MI 400 T (400 ml chamber)
- Compatibility (drive): IKA MultiDrive basic and MultiDrive control
- Material: Solid, highly wear-resistant stainless steel
- Blade geometry: Scaled, multi-bladed star profile to prevent tangling
- Cleaning and hygiene: Autoclavable (conditions according to the IKA operating instructions)
Scope of delivery
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1 x IKA MultiDrive MI 400.2 star blade (stainless steel)
(Important note: The MultiDrive drive unit and the MI 400 grinding chamber are not included in the scope of delivery!)
Individual requirements & accessories
The MI 400.2 star blade is a wear part for high-volume cutting and comminution. Processing extremely tough or abrasive samples can lead to gradual blunting of the cutting edges due to mechanical stress. A blunt blade can increase the thermodynamic stress on the sample (frictional heat). To ensure gentle, thermally stable preparation of large batches, we recommend having replacement blades ready at an early stage should cutting performance begin to decline. Please contact our procurement service at any time for the strategic procurement of laboratory consumables.