This machine is suitable for testing the elastic recovery performance of fabrics under the action of two methods (constant force value and fixed length). 【Relevant Standards】

ASTM D3107.

[Scope of application】：This machine is suitable for testing the elastic recovery performance of fabrics under the action of two methods (constant force value and fixed length). [Meet the standard.]】：ASTM D3107.

【Working principle】：

Constant force value method: The upper end of a certain specification of the specimen is clamped in the upper fixture, and a certain weight of weight is hung belowThe recovery performance of the specimen was tested after 4 loads.

Fixed length method: The upper and lower ends of a certain specification of the specimen are clamped in the upper and lower fixtures respectively, and the recovery performance of the specimen is measured after moving the lower fixture to stretch the specimen for a certain length and hold it for a certain period of time.

【Technical parameters】：

1. Specimen:65mmx560mm

2. Fixture jaw width:60mm

3. Load:3LB/4LB (±1%)

4. Hanging rod: Outer diameter: 6mm

5. Volume(WxDxH):70x120x50cm

6. Weight(Approx.): ≈30Kg

【Main accessories:】：

Steel ruler:100cm  weights1 piece each of 3LB and 4LB.