Rotational Closed Cavity Rheometer

Rotational Closed Cavity Rheometer

Test Application
Rubber Testing
Standards
ISO13145
ISO6502
ASTM D5289
ASTM D6048
ASTM D6204
ASTM D6601
ASTM D7050
ASTM D7605
ASTM D8059
DIN 5329

Best Application: Designed to measure dynamic and static properties of raw elastomers in all stages of a curing process.

Applications

The RPA Ultra is an unconventional closed cavity rheometer with a rotational lower die providing unrestricted oscillation strain and a frequency breakthrough of up to 100 Hz. The instrument is designed to measure dynamic and static properties of raw elastomers and rubber compounds in all stages of a curing process.

Another technology breakthrough is the extended range of shear rate going from 0.001 to 500 1/s. The high shear rate can be unutilized to simulate the extrusion process in a real production scenario. The UltraCurve can excel in measurement repeatability and reproducibility thanks to the unique engineering on the sealed biconical dies which can greatly reduce slippage during a testing process. The new Torontech software is a great complement to the UltraCurve making your testing process much easier to handle and results much more comprehensible.

Features/Advantages

BareissOne is a modularized software that is aimed to provide a common platform with integration of different test categories.

Whether it is a standard test for one single measurement or a series of tests that requires a complex test sequence editing, BareissOne is designed to offer all levels of user’s demands.

Features such as user authorization, system log, project management, version control and custom report are all at your fingertips.

Technical Specifications

Max shear rate in rotation:

500 1/s

Max shear rate in Oscillation :

100 1/s

Max Ramp Rate:

1.33°C/s -> 80°C/min

Max Cool Rate:

0.5°C/s

Die Config:

Sealed die, biconical and plate-plate

Drive system:

High dynamic torque motor, High resolution controller

Oscillation frequency:

0.001 to 150 Hz

Oscillation strain:

+/- 0.001° to unlimited,

'+/- 0.014% to unlimited

-> rotational

Temperature range:

Ambient to 235°C

Measured data:

Torque, temperature, frequency, strain;

Optional: Normal force, die pressure

Calculated data:

S΄, S˝, S*, G΄, G˝, G*, tan

δ, phase angle, cure

speed, η΄, η˝, η*, ...

Die gap:

0.45 mm nominal

Sample volume:

4.5 cm²

Closing system:

Soft closing to prevent foil rips and damage of test samples, optionally variable closing force.

Torque range:

0.0001 to 250 dNm

Normal force / Pressure (opt.):

up to 10 kN

Subroutines:

Isothermal, Non-Isothermal, Timed, Temperature Sweep, Strain Sweep, Frequency Sweep, Steady Shear, Relaxation, Hysteresis, Tension Test, LAOS, Matrix Test

Data Interface:

Ethernet

Data points:

Over 3500 data points available for each static subtest Including S‘ Min, S‘ Max, TS 1, TS 2, TC 10, TC 30, TC 50, TC 90 Integrated, automatic reporting features for

dynamic tests

Pneumatics:

min. 4.5 Bar (11.5 kN) / 60 psi

Electrical:

400V/16A