TST 2 – Thermal Shrinkage Tester – Lenzing

Automated Thermal Shrinkage Testing

The TST 2 Thermal Shrinkage Tester from Lenzing Instruments provides efficient quality control for filament testing, measuring thermal shrinkage and shrinkage force of up to 2 samples simultaneously. This sophisticated instrument is designed for testing technical and industrial yarns such as tire cord, filament and spun yarns for textile applications, as well as plastic tapes.

Advanced Testing Capabilities

The thermal shrinkage properties of filament yarn are analyzed by heating samples at pre-set temperatures for specified periods. TST 2 offers dynamic testing capabilities, observing yarn behavior during temperature ramp exposure at constant rates. The specially designed oven-type heater protects measurements from ambient influences, ensuring stable testing conditions and highest accuracy.

Comprehensive Analysis and Control

During testing, the entire shrinkage behavior of heated yarn is graphically displayed on the connected PC, enabling precise monitoring and analysis of production irregularities. User-friendly software offers flexible testing with detailed result reports. The instrument performs fully automated, computer-controlled tests without operator influence on measurements.

Specialized HD Version Available

For high denier yarn applications, TST 2 HD is available, specially designed to withstand higher forces developed in coarse yarns. Both TST 2 and TST 2 HD conform to ASTM D4974, D5591 and EN 13844 standards.

Technical Specifications

  • Testing temperature45 °C - 300 °C
  • Heater length250 mm
  • Temperature distributionConstant ± 2 °C in 80% of heater length
  • Shrinkage length99% - 500%
  • Shrinkage force range1 - 2000 cN
  • Accuracy< 0.2% (at 50% of full scale)
  • Max. sample width1.3 mm (5 mm on request)
  • Force resolution1 cN (=0.01 N)
  • Temperature resolution0.1 °C
  • Shrinkage length resolution0.1%
  • Power supply230/115 VAC ± 10%, 50/60 Hz, 1000 W
  • Dimensions500 x 480 x 320 mm (L x W x H)
  • Weight25 kg
  • Data outputEthernet

FAQ - TST 2 – Thermal Shrinkage Tester – Lenzing

What is the TST 2 used for?

The TST 2 is used for automated determination of thermal shrinkage and shrinkage force in filament testing. It's ideal for testing technical and industrial yarns such as tire cord, filament and spun yarns for textile applications, as well as plastic tapes.

How many samples can TST 2 test simultaneously?

The TST 2 can test up to 2 samples simultaneously in one test run, making it highly efficient for quality control processes and research applications.

What standards does TST 2 conform to?

Both TST 2 and TST 2 HD conform to international standards including ASTM D4974, D5591 and EN 13844, ensuring reliable and standardized testing procedures.

What is the difference between TST 2 and TST 2 HD?

TST 2 HD is a specialized version designed for high denier yarn applications. It was especially designed to withstand the higher forces developed in coarse yarns, while maintaining the same accuracy and functionality as the standard TST 2.

What temperature range can TST 2 operate in?

The TST 2 operates in a temperature range from 45°C to 300°C with constant temperature distribution of ± 2°C in at least 80% of the heater length, ensuring accurate and consistent testing conditions.

Does TST 2 provide real-time data visualization?

Yes, during testing, the entire shrinkage behavior of the heated yarn is graphically displayed on the connected PC in real-time. This enables precise monitoring and analysis of production irregularities, making it an excellent tool for research and development.

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