Multi-Axis Billet Base for AL220/AL340 Tower Series

The AP-ALT-MAB is a multi-axis interface bracket that allows an AL220 tower module or AL340 reducer module to attach to a roof structure or flat surface. The billet hinge can be rotated a full 360°, allowing the tower to be raised and lowered in any direction, as well as being installed on sloped/pitched surfaces.

It is required to construct aluminium lattice towers that are to be installed on tin rooftops using screws or dynabolted into concrete. It has a 76.2 mm solid structural grade billet that has been machined into a clevis-fork that accepts the clevis-eye present on AL220 base modules, AL340 reducer modules, and other APAC products such as the AT-Series pegged masts.

A Class 8.8 M12 Bolt and Nylock is used as a pin to secure the two clevis components, however thanks to the precision machining, the structural load is directed through the billet-formed clevis rather than the bolt. This design strategy significantly minimises reliance on the bolt for load-bearing purposes, thereby reducing the risk of shear stress and enhancing the overall stability and durability of the tower assembly.