Terex
Boom Inner Weldment for Terex HC275
This boom inner weldment serves as a primary structural section for the 25-foot lattice boom assembly on the Terex HC275 crane. It functions as the base for extending boom sections and supports the load transfer to the machine chassis.
Parts diagram
Compatible models
Specifications
- Part number
- 1187489
- Brand
- Terex
The boom inner weldment, part number 1187489, acts as a core structural component within the lattice boom system of the Terex HC275 crane. As the primary 25-foot inner section, it provides the foundation for the boom assembly, managing the transmission of vertical and lateral forces from the load directly into the crane carrier. This component is engineered to maintain the geometric alignment of the boom structure during lifting operations.
This weldment is specifically designed for the Terex HC275 model and follows the 92HI series designation. It serves as the attachment point for additional boom inserts and extensions, ensuring the overall stability of the lattice configuration. The structural integrity of this section is fundamental to the crane's ability to maintain its rated lifting capacity and reach.
In lattice boom cranes, the inner boom section acts as the interface between the crane upper structure and the rest of the boom assembly. It must withstand significant compressive and bending stresses during heavy lifts. By providing a rigid base, this section ensures that the boom remains stable under load, allowing for the safe operation of the hoist cables and sheaves that run through the boom assembly.

