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Compression Set Apparatus UI-FT82

Compression Set Apparatus is to test rubber compression set after compressed for a certain period under constant force in air.

  • Unuo Instruments
  • 18 months warranty
  • ISO17025 calibrated certificate
  • ASTM D395 Method A, SATRA TM64


Compression Set Apparatus ASTM D395 Method A is to test rubber, microcellular foam material, and others compression set after compressed for certain period under constant force in air.

Compression set of rubber standard includes ASTM D395 Method A (ASTM D395 A), SATRA TM64. Contact us today for Compression Set apparatus price more details.

Unuo ASTM D395 Compression Set Fixture Method A Features

  • The structure is made of high-strength steel whose surface is with
    anti-rust plating process;
  • The test platform is made of stainless steel, which is anti-rust and strong;
  • The equipment is equipped with 9 stainless steel sample splints, which
    can test multiple sets of samples at the same time;
  • High-performance spring, stable and long spring life;
  • High precision dial indicator;

ASTM D395 Method A Principle

Cut the sample and measure the thickness of the sample. Place the samples on the sample plate and sandwiched between the two plates. After the sample is compressed for a period of time by a preset pressure, the sample is removed and left for a certain period of time. Measure the thickness change of the sample and calculate the percentage change in thickness before and after the test. Check ASTM Method B Here

Tips for Compression Set Apparatus

  •  Samples are prepared strictly in accordance with the requirements of the standard before testing, and can be single or multiple stacked to the specified thickness (up to three stacked);
  • When using the device, slowly turn the handle and apply pressure slowly to prevent the sample from being excessively compressed due to instant pressure;
  • When using this equipment for testing, it should be allowed to stand for a certain period of time in a controlled, constant temperature and humidity environment, and after the test is finished and the sample is taken out, the sample recovery period should also be restored in the environment;
  • Thickness gauge is also required for this test;

Unuo ASTM D395 Compression Set Apparatus Specification



Dial Indicator

50mm, 0.01mm

Effective Stroke

Approx. 120mm


SATRA TM64 ;ASTM D395 Method A;

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