Low Temperature Retraction Tester (TR Tester)

The Low Temperature Retraction Tester (TR Tester) is designed for precise evaluation of material retraction properties at low temperatures. This instrument provides comprehensive data analysis including TR points (TR10, TR30, TR50, TR70, TRx1, TRx2) and the time from test start to calculated TR points. It features graphic representation of retraction percentages versus temperature curves for up to six samples, and temperature versus time curves during testing. The tester automates performance with thermal cycle adjustments and sample release based on test procedures. It supports testing different sample groups with varied elongations and provides calculations for significant results, averages, and standard deviations.

Categories: Rubber Testing, Testing by Material

Specifications

Data Production:

TR Points: TR10, TR30, TR50, TR70, TRx1, TRx2 (customer defined)
Time from test start to TR points
Graphic Representation:

Retraction percentage vs. temperature curves for 6 samples
Temperature vs. time curve during test
Automatic Testing:

Adjusts thermal cycle and releases samples automatically based on conditioning time
Sample Testing:

Ability to test different sample groups with varying elongation in the same test
Calculation:

Significant results for each sample
Average and standard deviation for sample groups
Tolerance limits for conditioning temperature
Specifications:

Temperature Range: -70℃ to 0℃
Temperature Resolution: 0.1℃
Temperature Check: PID microprocessor with 0.1℃ accuracy
Cooling System: Liquid nitrogen with internal heat exchanges
Test Chamber Capacity: 5 liters
Chamber Material: Stainless steel
Sample Holder: 6 samples
Instrument Dimensions: 500 * 500 * 1900 mm (W * D * H)
Weight: 210 kg
Electric Supply: AC 220V±10%, 50Hz ± 3Hz, 4A, Single Phase