OPENTECHNICAL PUBLICATION
OT-2026-000000080

Top-loading tower crane systems and associated methods

Published: 2026-09-15T19:02:28.048359Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000080
Categories: Lifting, Positioning & Manipulation > Hoists and Cranes

------------------------------------------------------------------------

ABSTRACT

A tower crane for performing a lifting a load includes an extendable tower
assembly having a central axis and including a plurality of separate tower
sections, a climbing assembly including a climbing frame positioned on the
tower assembly and a latching assembly to transport the climbing assembly
vertically along the tower assembly, and a boom assembly atop the tower
assembly and including a crane floor, a boom supported on the crane floor, a
lifting member coupled to the boom, and a slew bearing coupled to the crane
floor and configured to permit the crane floor to rotate about a rotational
axis, wherein the slew bearing includes a first bearing position and a second
bearing position spaced from the first bearing position relative to the
central axis of the tower assembly.

------------------------------------------------------------------------

OpenTechnical publication OT-2026-000000080
Published 2026-09-15T19:02:28.048359Z
https://opentechnical.org/p/OT-2026-000000080