The advantages of our Strain Viewer for PET Preforms are as follows : -

1. Not only can the molecular birefringent flow lines (isochromatic pattern) be seen in colour but also the black isoclinic lines are visible when the preform axes are parallel to the polarising axis of the viewer. The isoclinic lines indicate the directions of the molecular orientational strains.

2. Crystallinity and other defects which are not easily seen in ordinary light can be readily identified.

3. The Strain Viewer is economical and can sit along side each injection moulding machine.

Data :

Light Source : Two compact cool white fluorescent lamps

Overall size :

Breadth : 200mm

Width    : 200mm

Height   : 245mm

Viewing field : 160mm x 160mm

Voltage : 220/240V : 50Hz or 110V : 60Hz