Static Stretch& Recovery Tester is developed for testing the stretch, growth and recovery performance of elastic fabric by static test at a specified tension or specified extension, where universal tensile testers are not applicable due to time requirement.

Left 1&2: Test at specified tension & specified extension for ASTM D3107

Left 3&4: Test at specified tension & specified extension for ASTM D2594

FEATURES:

1  Two test methods: test at a specified tension and test at a specified extension;

2  A organic glass elongation ruler which measures stretch and shrinkage in both distance and percentage, convenient to measure and calculate;

3  A scale of 1000mm length is fixed close to each rail, so that the zero on the scale lines up with the bottom edge of upper clamp;

4  Each working position is equipped with a timer, convenient to record test time;

Top: Elongation ruler; Left: Upper clamp; Middle: Lower clamp with locking device; Right: Timer

5  Quick and efficient clamp;

6  Flexibly-sliding lower clamp with locating device can be randomly fixed at any position on the rail;

7  Rails and clamps are made of aluminum alloy and their surface are treated by sand blasting oxidation;

8  Weights of 304 stainless steel, resistant to corrosion and rust;

9  Level-adjustable trundle, convenient to move and install.

Mechanical Stretch Tester Parameter: