A guide rail-pillar system is disclosed. The system includes at least one guide rail pillar to guide an actuation of a cabin of a pneumatic vacuum elevator, wherein the at least one guide rail pillar is disposed at an external cylinder assembly. The at least one guide rail pillar includes a first surface. A curved structure is extruded from a first surface of the at least one guide rail pillar, wherein the curved structure enables movement of the cabin in a vertical direction. The at least one guide rail pillar includes at least two grooves disposed on lateral sides. The at least two grooves accommodates a covering sheet for enclosing the external cylinder assembly. The at least one guide rail pillar includes at least three ribs. The at least three ribs connects the at least one guide rail pillar with a base ring and the external cylinder assembly.