The movement between the laser and the engraved roll surface is critical for high graphic and high reliability direct engraving of flexographic printing sleeve and plates.
1) Moving optic has variable beam path. Dot size and shape can change across width.
Moving optics = Variable laser beam
1) Cylinder movement is adjacent to engraving head, high potential for cross contamination of precision mechanics;
2) Has maximum (14) number of dynamic contact points. High risk of movement during engraving;
3) Cylinder movement can change according to roll weight or size or balance. Depends upon dynamic balance, accuracy and consistent weight of roll for good performance.
2) Has maximum (14) number of dynamic contact points. High risk of movement during engraving;
3) Cylinder movement can change according to roll weight or size or balance. Depends upon dynamic balance, accuracy and consistent weight of roll for good performance.
Laser beam fixed and stable
Cylinder movement exposed to contamination
Cylinder has 14 point dynamic contact
Cylinder movement exposed to contamination
Cylinder has 14 point dynamic contact
1) Laser movement is remote from engraving head, giving optimal clean conditions;
2) Minimises number of dynamic contract points to 8;
3) Laser movement and control is totally indendendant from roll weight, size or balance;
4) Stable fixed beam path. Optimal laser performance.
2) Minimises number of dynamic contract points to 8;
3) Laser movement and control is totally indendendant from roll weight, size or balance;
4) Stable fixed beam path. Optimal laser performance.
Laser beam fixed and stable
Laser movement protected from contamination
Cylinder has 4 point dynamic contact
Laser movement protected from contamination
Cylinder has 4 point dynamic contact
