This machine is a simpler manual form of the digital lastometer and is a mechanical device.
Specimens cut from the material are placed in the machine in accordance with the instructions provided. The ball-ended rod is raised by turning the machine handle. The load, measured by a sealed hydraulic system, is displayed on an analogue dial with maximum pointer. A mechanical counter geared to the movement of the ball-ended rod records distension.
The equipment provides all the necessary information to determine the suitability of the specimen material for lasting, but does not have a motorised drive.