When using these machines, a pliable specimen is placed under a constant tension load.
The specimen is then folded to an angle of 135° in either direction, at the rate of 175 double folds per minute until the specimen is severed at the crease.
A variable folding rate option allows the operator to vary the folding rate between 20 and 175 double folds per minute.
These folding endurance testing machines are utilized to automatically assess the folding endurance properties of numerous materials. They are available in three different models and can test wire, paper, leather, plastic and other pliable materials. The test is based on a pliable specimen being placed under a continuous tension load, and then being folded at an angle of 135° in either direction.
This occurs at the rate of 175 double folds per minute (standard) until the specimen becomes severed at the crease. A continuous tension load is provided, and variable rates ranging from 20 to 175 double folds per minute can be furnished.