Whats the meaning of "layout Z" at linear-units type LE-6 or LE-9?

Linear units of type LE-6 and LE-9 are offered in variants N or Z.

Variante Z means: a second piston is integrated in the system:

Instead of the normally placed pneumatic damping-module, a second piston enables double force on same product-size! 

Both units, LE-6 and LE-9, can be used in push- or portal-use. Stroke lengths are 100, 200 or 300 mm; in case of LE-9 even 400 mm stroke can be ordered.

Adjusting of stroke can be done on complete way!

Two guide-rods (sealed linear bushing) do grant precise guiding of load at a repeat accuracy of +/- 0,02mm.

Due to lifting forces a hydraulic damping is recommended!

Video "Lineareinheit LE-6" im YouTube Channel...