The RCR is optimized for fast measurement results and simple operation in order to deliver precise results quickly, especially in quality control (QC). A typical measurement only takes about 2-5 minutes.

In open extrusion mode, the RCR is used as a standard capillary rheometer to determine viscosity at up to three shear rates per barrel fill. The shear rate is calculated from the punch speed and the shear stress from the piston force.

In the optional injection mode, the material is injected at constant pressure into an injection mold that is heated to a higher temperature independently of the test chamber. This allows both the flow and vulcanization behaviour of the rubber or compound to be characterized directly and close to the process.

The viscosity of duromers such as epoxy or phenolic resins can also be measured. A special, easy-to-clean channel with a split, easily removable die is used for this purpose.

• Test force maximum 75 kN
• Testing under production and processing conditions
• Test piston diameter optionally 20, 30 or 35 mm
• Short test intervals of less than 3 minutes
• High dynamic speed range (1:800000)
• Fast test piston acceleration: 0-15 mm/sec in just 0.35 sec.
• Extrusion mode with up to 3 punch speeds per filling to determine viscosity
• Simple parameterization, test execution and evaluation with “Rubberview” software
• Optional: Injection mode with independently temperature-controlled branching or spiral tool
• Optional: Viscosity measurement on duromers with split capillary and special chamber

• Extrusion mode for viscosity measurement
• Injection mode for injection moulding simulation and characterization of the vulcanization behaviour (option)
• Threshold value measurement (option)

• Threshold measurement
• Spiral or branching tool for injection mode
• Thermal decoupling between test chamber and mold
• Split capillary
• Volume punch