TR tester is designed for determining the retraction characteristics of the stretched vulcanized rubber after cooling. The specimen is stretched at a standard laboratory temperature, and then is cooled to a temperature which retraction will not occur after removing tensile force. The tensile force is removed and temperature is increased at a constant rate. The temperature which the specified retraction rate occurs is determined.
Control Method: PLC + computer software
Testing Specimen: 6 sets
Testing Temp: Room temp. to -70℃
Cooling Method: Compressor or liquid nitrogen (prepared by user)
Temp Accuracy: ±0.3℃
Stroke Range: 350%
Stroke Accuracy: 0.01mm
Heating Speed: 1.0℃/min
Dimension(W×D×H): 105×85×235 cm
Power: 3∮ AC 380V (Specified by user)