Hélicrab : technical manuel

6 0 Configurations 8 Hélicrab: spiral worksite staircase E C H A F A U D A G E S Access to various floor heights Hélicrab staircases can be easily adapted to the heights to be accessed. The picture shows that by using 3/4 of a turn after the first landing, you can access a floor 3.00 m higher. In a shaft Hélicrab staircases can be installed inside a shaft 1.70 m x 1.70 m minimum. Access between scaffolding towers Hélicrab staircases can be erected between 1.50 m square scaffolding towers to access both the working platform and the formwork. As they are compatible with the Crab system they can be connected to the towers using ledgers. This Hélicrab staircase has been erected between 2.00 m square towers and connected using 0.15 m ledgers on one side and 0.35 m ledgers on the other. Attached to facade scaffolding Hélicrab staircases have a very small footprint and can be used where space is limited (narrow street, inner courtyard, etc.). They can be attached to facade scaffolding for access at 2 m intervals. Mobile staircase Hélicrab can be used for mobile staircases by replacing the screw jacks by 700 kg casters. Maximum height 4.00 m and for interior use only. Mobile scaffolding towers must not be moved if there is someone inside. Move towers by pushing low down. Ensure that the floor is level and that there are no obstacles in the way.