Hard Plastic Load Deformation Testing Machine ASTM D621

Scope of application
It is mainly applicable to hard plastics connected by rivets, bolts or similar connection methods, to determine their ability to withstand compression without yielding or loosening over time. It is applicable to non-rigid plastics and determines their ability to return to their original size over time after deformation.

Compliant with standards
It complies with the requirements of the test standard "ASTM D621 Test Method for Plastic Load Deformation".

Technical parameters
Loading form: Apply constant loads of 113kg, 227kg, and 454kg±1% respectively to the two parallel pressure plates of the testing machine. The pressure of these two plates can be adjusted so that they can fully contact the sample before the load is applied.
Support: To ensure that the load is evenly distributed on the surface of the specimen, one of the machine supports can be adjusted to allow the load to pass through the centerline of the specimen.
Deformation gauge: Measurement accuracy <0.001mm
Micrometer: 0.001mm
Test environment temperature requirement: 23℃±5℃
The humidity requirement for the test environment: 50%±5%;
Power supply: 220v 50Hz

Working principle: Place the sample in the middle of a parallel plate with a measurement unit, apply the required force through a conventional loading system, and read the thickness change of the test sample under the specified temperature and conditions.