Advanced True Powder Rheology

The most accurate powder analysis with the powder flow cell and the powder shear cell

The two cells for true powder rheology help you to really characterize and understand your powders. A wide range of dedicated powder measurement methods is available putting the advantages of rheometers to use: fast and easy-to-perform tests but also elaborate measurements for both quality control and R&D purposes.

The powder shear cell is ideal for determining the flow behavior of consolidated powders and their time-dependent behavior. Additional accessories provide full control over temperature and humidity.

The powder flow cell is an innovative and scientific approach towards powder characterization offering a wide range of test methods. Powder behavior can be characterized under various realistic conditions: simulating, adjusting, and optimizing – for example – manufacturing processes.

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Key Features

Two cells to cover all your needs

Two cells to cover all your needs

The complete powder rheology setup with the powder shear cell and the powder flow cell gives you all the possibilities you need for the characterization of your powders and granular media. The combination of a rheometer with a system to determine the behavior of powders guarantees the highest sensitivity and absolute results. 

Powerful software for incomparable control

Powerful software for incomparable control

With the intuitive user interface of the RheoCompass™ software you can run fully automatized measurements with only two clicks while maintaining full autonomy over all measurement parameters. You can adapt all measurements to your needs. The system complies with QM requirements, such as 21 CFR Part 11 for the pharmaceutical industry. 

The only powder shear cell with temperature and humidity control

The only powder shear cell with temperature and humidity control

Control the temperature and find out how this impacts your powders. An MCR rheometer can be equipped with heating chambers for an extreme temperature range from -160 °C to 600 °C. Humidity is known to heavily change powder behavior during storage, handling, and processing and can be controlled in the range between 0 %rH and 95 %rH with a dedicated humidity kit.

Designed for sensitivity and reproducibility

Designed for sensitivity and reproducibility

Expect reproducible measurements for both the powder shear cell and the powder flow cell. The MCR’s sensitivity helps to differentiate even very similar powders and detect even small changes within your samples. A sample preparation bench is included in the powder shear cell setup. It ensures that the samples are always prepared identically, strongly reducing operator influence and thereby increasing reproducibility. The powder flow cell applies automated sample preparation modes for an unrivalled reproducibility of up to 0.5 %.

Patented dust protection for the powder flow cell

Patented dust protection for the powder flow cell

The unique patented dust protection system (EP 3067684) enables clean and safe sample handling. The fourfold sealing concept protects the operator and the instrument from fine and potentially hazardous powder even when it is fully fluidized. The air seal technology of the powder flow cell is dustproof without any friction on the measurement axis and thus maintains the MCR rheometer’s extraordinary accuracy and resolution down to 10 nNm and below.

The most versatile powder characterization with the powder flow cell

The most versatile powder characterization with the powder flow cell

Due to its high versatility the powder flow cell can be used for in-depth powder characterization or as an easy-to-use quality control tool: You can use it to control the quality of your products with quick tests while benefitting from the precision of Anton Paar’s MCR rheometers. Use one of the many measurement methods to characterize your powder as is it is during processing, handling, and storage.

Technical Specifications

Powder shear cell Powder flow cell
Sample volume 4.3 mL and 18.9 mL 60 mL to 120 mL
Torque range 0.1 nNm to 300 mNm (device-dependent) 10 nNm to 300 mNm (device-dependent)
Normal stress range

While shearing: up to 30 kPa

While compacting: up to 110 kPa

(sample- and cell-dependent)

up to 22 kPa

Dust protection Not necessary  
  • d ≥ 5 µm: 100 % dustproof
  • 5 µm ≥ d > 1 µm: 90 % to 95 % dustproof
 
Fluidization options Not necessary  
  • Scientific option: choice of 3 mass flow controllers for volumetric flow from 0.05 L/min up to 80 L/min, with pressure sensor
  • Quality control option: proportional valve
 
Temperature options  
  • -20 °C to 180 °C with CTD 180 HR
  • -160 °C to 600 °C with CTD 600 MDR
  • Customized up to 1000 °C
 
Customizable on request
Humidity option  
  • 0 %rH to 95 %rH

from 5 °C to 120 °C with CTD 180 HR and humidity option
Customizable on request
Measurement systems Included in the setup:
  • Small shear system (4.3 mL)
  • Large shear system (18.9 mL)
  • Wall friction system with exchangeable discs (stainless steel, aluminum, PTFE, further materials on request)
 
 
  • Two-blade stirrer
  • Warren-Springs geometry
  • Powder Preparation Set with exchangeable discs (stainless steel, air-permeable, PTFE, further materials on request)
  • Cylinder
  • Profiled cylinder
 
Accessories Included in the setup:
  • Sample preparation / time consolidation bench
  • Weight base for small and large shear cell
Weights for small and large shear cell (up to 12 kPa in 1 kPa steps)
Additional accessories:
  • Uncoated / FTO-coated / steel measuring tube
  • HD Webcam
 




MCR rheometer specifications
Bearing Air
EC motor
Rotation mode
Oscillation mode
Toolmaster™
QuickConnect for measuring systems
Virtually gradient-free (horizontal, vertical) temperature control
T-Ready™ o
TruRate™ o
TruStrain™ o
RheoCompass™ software
Test Designer
Report Designer
Managed lab, multiple clients and server o
Fully automatic temperature calibration

For more specificiations see: Anton Paar Rheometer

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