IKA MT 40 P.100 disposable grinding beaker, interlocking beater, 40 ml, 100 pieces, 0020011531

Kinematic behaviour of the interlocking rotor and shear comminution

In analytical high-throughput sample preparation, soft, tough, elastic or extremely fibrous matrices (such as plant tissue, thermoplastics, paper or textiles) present a major process engineering challenge. Conventional impact beaters fail here for physical reasons, as elastic materials absorb the kinetic impact energy through damping effects rather than fracturing brittle. The IKA MT 40 P single-use grinding beaker is equipped with a specifically interlaced (curved) stainless steel beater to solve this rheological problem. Driven by the IKA Tube Mill’s magnetic coupling at speeds of up to 25,000 revolutions per minute, this modified rotor geometry not only applies radial impact energy but also induces massive, localised shear stresses. This shearing action continuously breaks down the macromolecular fibre structures and effectively prevents plastic deformation of the sample.

Macro-fluid dynamics and prevention of wrapping effects

A fundamental mechanical problem in the high-speed grinding of long fibres is the so-called winding effect. Under conditions of severe flow turbulence, fibrous materials tend to wrap statically around the rotating tool shaft. This leads to an exponential increase in torsional resistance and thermal overload of the electromechanical drive. The asymmetrical, interlaced geometry of the P-beater acts as a hydrodynamic impeller. It generates massive three-dimensional flow turbulence (vortex), which presses the material radially against the chamber wall and cuts the fibres to pieces long before static winding structures can form around the axis of rotation. This guarantees a homogeneous particle size distribution within the 40-ml batch without any dead zones in the flow.

Aerosol containment and elimination of carry-over in high-throughput applications

High-speed comminution induces significant thermodynamic stress through wall collisions. The MT 40 P grinding beakers are manufactured from high-performance thermoplastic polymers that absorb this exothermic heat and the mechanical impacts without fracturing. During serial grinding of toxic, biohazardous or highly potent active pharmaceutical ingredients (APIs), the closed beaker acts as a hermetically sealed containment system that physically protects the user from inhaling respirable aerosols. This bulk pack containing 100 units enables high-throughput laboratories to maintain an uninterrupted process chain: the ‘single-use’ concept completely eliminates analytical cross-contamination (carry-over) at the molecular level, as it completely eliminates the need for the thermodynamically demanding decontamination of conventional stainless-steel grinding chambers.

Technical details

• Product type: Single-use milling tube (bulk pack)
• Tool geometry: Interlocking (curved) stainless steel beaters
• Processing principle: Combined shear, impact and percussion comminution
• Physical scope of application: Tough, elastic and fibrous sample matrices
• Maximum usable volume: 40 ml
• Material: Impact-resistant, transparent, high-performance thermoplastic
• Analytical focus: 100% prevention of cross-contamination (carry-over)
• Health and safety: Hermetic containment against toxic dusts and aerosols
• Compatibility (drive): Suitable exclusively for the IKA Tube Mill (control / 100)
• Packaging unit (PU): 100 pieces per set

Contents

• 100 x IKA MT 40 P disposable grinding jars (with interlocking beater)

(Important note: The IKA Tube Mill drive unit is not included in the scope of delivery!)

Individual requirements & accessories

The MT 40 P.100 grinding jars are highly specialised consumables. The pack of 100 is the optimal solution, both in terms of process engineering and cost-effectiveness, for analytical laboratories with a high throughput of soft or fibrous samples (e.g. in agricultural analysis or plastics testing). For conventional, hard and brittle solids (such as rock), always use the standard MT 40 beaker (straight beater). To scale the logistics of your sample preparation efficiently and avoid supply bottlenecks in time-critical analysis runs, we recommend setting up framework agreements. Please contact our specialist procurement service at any time for strategic demand planning.