Rheometer advanced instrument options

Cooling systems Pneumatic cooling system Both chambers are cooled separately by a PID-controlled forced air cooling system. In MDR mode this system can be used to rapidly cool the instrument from a higher to any lower testing temperature and therefore significantly reduce non-productive time of the instrument as well as shorten stabilization and operator waiting times. Forced air cooling systems enable cooling at any point during test sequences in non-Isothermal and RPA operation modes, allowing test definitions to follow precise cooling ramps and steps. Cooling can also be used to conduct heat from the sample when friction heat is a concern, such as testing with high shear rates. Forced air cooling operation principle: Professional 3000 3000 3000 3000 3000 D-MDR D-RPA Upper cooling channel MDR MDR MDR (embedded in die insulation ring ) Lower cooling channel MCool -40 – – – – 0 (embedded in die insulation ring ) MCool 10 Integrated cartridge cooling system that separates the provided air streams into cold (-45°C) and hot (+110°C) fractions to enhance the performance of the machine compared to the standard pneumatic cooling system. This system is especially suitable for testing at or below room temperature in order to provide the most accurate test results as well as correlations with final product application environments. This system is highly recommended for dynamic testing on very soft rubbers, polymers and silicones. The operation principle of the MCool 10 cooling system is extremely simple and fully integrated into the machines control system: Air is accelerated and separated in cartridge centrifuges. Afterwards the cold fraction of the air is used for separate cooling of both test dies down to +8°C. Only a forced air supply with at least 4 Bars is required - there are no additional chillers or cooling liquids needed. (Performance of the cooling systems depends on supplied air). MCool -40 Sub-ambient cooling system The advanced MCool -40 cooling system features a liquid cooling system with external chiller unit directly connected to the test dies of the instrument. This system adds revolutionary features to Static and Dynamic rubber testing allowing the characterization test of cure characteristics, damping / rolling resistance and tire labelling predictors such as wet/ice traction in a single test. The MCool-40 system with specially adapted die seals allows to cool the dies to as low as -40° Celsius this allows to even reach Glass transition temperature for many polymers and rubber formulations. This makes the instrument equipped with this cooling system the ideal Dynamic Mechanical Rheological Testing System: The total heating system of the dies remains unchanged so that instruments equipped with this device are absolutely comparable with any