Custom Cranes

Adjustable Self-Propelled Gantry Crane

Judlau Contracting Inc. | Riverside Drive Project

Custom 15 Ton Gantry Crane with Unique Features

• Variable height and width adjustment: Designed to maintain level operation while traveling on rails with changing elevations and track widths.
• Self-propelled, generator-powered operation: Equipped with onboard diesel generator power for independent movement and flexible use across changing jobsite conditions.

Rail-Based Mobile Bridge Crane

Skanska-Fay JV | Howard Street Tunnel Clearance Project

Custom Rail Based Gantry Cranes with double ended cantilever load handling

• Built for tunnel invert replacement: Twin self-powered bridge crane systems support the removal and lowering of the existing tunnel invert while placing new precast invert segments to increase clearance for double-stacked freight containers.
• Engineered for heavy rail tunnel work: Includes 15-ton Yale hoists, double-ended cantilever handling, leveling cylinders, 125 ft of runway travel, AAR rail trucks and couplers, onboard generator and hydraulic power, air brakes, lighting, and removable wing decks.

12-Ton Bridge Cranes

Oroville Dam RVOS

• Custom-built 12-Ton bridge cranes: Designed and manufactured to meet demanding project lifting requirements.
• Compact under-running crane design: Includes compact hoist and trolley assemblies with CMAA Class D service for heavy-duty operation.

5-Ton Bridge Crane

Oroville Dam RVOS

• Custom-built 5-Ton bridge crane: Designed and manufactured in-house to meet the project’s lifting requirements.
• Compact, fast-turnaround crane system: Includes a battery-powered trolley drive, chain hoist, and expedited delivery to the jobsite within 4 weeks of order receipt.

FreeStanding Bridge Crane System

Atkinson Construction | Atlanta Plane Train Shaft & Tunnel

• Custom freestanding support structure: Designed to fit jobsite constraints where conventional runway support was not feasible.
• Cantilevered runway design: Engineered with custom cantilevered runway beams to extend crane coverage and provide efficient load handling within the available work area.

Shaft Building & Crane System

OHL-Dragados | Maryland Purple Line Bethesda Station

• Integrated 30-Ton crane system: Designed with crane runways built into the shaft building structure to support heavy lifting for underground station access.
• Covered shaft building for urban work: Provides 170 ft of lift height while helping improve noise control, safety, and jobsite containment in a dense urban environment.