Large Ring Shear Tester
The RST Mk II ring shear tester (image above) is our largest
ring shear tester. It offers the widest range of applications
in terms of different particle sizes (up to 10 mm max.
particle size for wide distributions). The device is upward
compatible with its successful predecessor, the RST-01.pc
(e.g., use of the same shear cells), but is slightly smaller
and lighter.
With the tester, the new software RST-CONTROL v3 is
delivered.
Small Ring Shear Tester RST-XS.s
The "small" automatic, digitally controlled Ring Shear Tester
RST-XS.s for the measurement of flow properties of powders
(flowability, caking, wall friction). Automatic,
computer-controlled powder testing procedure. Very small
specimen volume (standard: only about 30 ml, smallest approx.
3.5 ml).
CAHD - Software for silo design for flow
CAHD: Computer-aided Hopper Design.
An interactive software doing the common calculations
according to A. W. Jenike's theory and, if desired, also
according to other approaches: Hopper slope for mass flow
(diameter-dependent), outlet dimensions to avoid arching and
ratholing. The entire process is user-controlled and
transparent: Diagrams and extrapolations are finally presented
in a comprehensive document.
Small volume shear cell XS-Sr
The shear cell type XS-Sr for Ring Shear Testers RST-XS.s and
RST-XS with only 10 ml specimen volume is provided with a lid
and bottom ring design similar to the larger shear cells XS-Mr
and XS-Lr.
Shear cell and driving axle with reduced heat transfer
This new accessory for the Ring Shear Tester RST-XS.s design
supports tests at temperatures deviating from room temperature
(reduced heat transfer, increased heat capacity).
Optimized design of shear cells for large ring shear testers
RST-01.pc and RST Mk II
A new generation of shear cells for the large ring shear
tester RST-01.pc and its successor RST Mk II offers advantages
in terms of cleaning and handling. Available with a sample
volume of 900 ml, 200 ml and 48 ml.
Round Robin Test on Ring Shear Testers RST-XS and RST-01.pc
All details and results: Please
click here.
Book on powder technology
Powders and bulk solids - Behavior, characterization, storage
and flow
(2nd edition 2021)
by Dietmar Schulze (published by Springer)
ASTM standard on Ring Shear Tester
D6773: Standard Shear Test Method for Bulk Solids Using the
Schulze Ring Shear Tester
Please click to visit the ASTM website.