The RPA Ultra’s crosshead and testing frame are incredibly rigid, eliminating instrument compliance’s impact on test results. Erroneously low values of measured characteristics like modulus and torque, irregular strain and torque waveform signals, and other mistakes are caused by instrument compliance, also known as instrument deformation.

The H-shaped load frame of the RPA Ultra has a robust crosshead brace and large-diameter steel rods that provide unequalled strength to withstand instrument deflection as the motor deforms the sample. Even for completely loaded, fully cured rubbers, its unique design guarantees that the desired strain is achieved with each cycle of deformation. Additionally, under all circumstances, a non-compliant system permits genuinely sinusoidal strain profiles. The improved design also ensures accurate vertical load application, accurate alignment, and smooth motion.

NextGen’s RPA Ultra – Advanced Rubber Process Analyzer measures the following data: Torque, temperature, frequency, strain; Optional: Normal force, die pressure.

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