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Case Study

Supply Chain Services for Rotary Car Dumpers

BCI Engineering is adept at managing bulk material-handling projects. Between 2010 and 2012, BCI agreed to manufacture and install three rotary rail car dumpers (two single dumpers and one tandem dumper), to be deployed in Latin America.

BCI’S SCOPE OF ACTIVITY INCLUDED

Structural & Mechanical fabrications
Trial erection in BCI’s Mexico fabrication yard

Close tolerance mechanical requirements
Global logistics

Drafting and 3D Rendering
Project Management

Scope

Project Fabrications

The large 50′ dumper had multiple steel components all fabricated by BCI in Mexico.

End Rings: 10’ in diameter utilized a cast segmented gear rack as the power transmission apparatus. BCI employed welding techniques in accordance with AWS D1.1 requirements, and all fabrication and welding were performed with dimensional tolerances of ±1/8″, including flatness of the end rings as surveyed across 24 points taken in the horizontal position.

OTHER LARGE FABRICATIONS

Front Girders
Rear Girders
Platen
Blocking
Counterweight Tube
Miscellaneous Parts

Several of the substructures and components were stress relieved after all welding was completed. The dumper was then painted with a zinc-rich epoxy coating. All seams and joints were visually inspected and critical welds were verified by non-destructive testing.

DRAFTING AND 3D RENDERING SERVICES: VIETNAM

The customer supplied 2D PDF drawings which BCI’s drafting team in Vietnam converted to AutoCAD shop drawings and 3D renderings for prefabrication modeling.

PROJECT MANAGEMENT

This project was completed in under five months; from design to delivery. BCI understands customers encounter urgent situations, and we do our best to meet tight timelines on custom projects.

In production

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