How do you keep the retractable roof of a gigantic baseball stadium opening and closing smoothly, day after day, letting the sunshine in and keeping the elements out? Ajax stepped up to the plate and provided the solution.

This client had the design for the new, high-profile Miami Marlins MLB ballpark, but needed help with the fabrication of the large sheet metal roofing components for the new ballpark. The concern: any shape variations in the finished components would likely result in leaks and subsequent water damage. The requirement, therefore, was very tight seals, both to mating parts and to the overhead weather seal. Ajax quickly went to work to engineer a better way to form the high-tensile material required for this application.

“We had the project quoted by a couple of vendors. Ajax wasn’t the cheapest, but they were the quickest to respond with workable answers for our more difficult questions about tooling and bends,” reported the structural engineer on the project.

In particular, an 8-foot landing piece needed to be bent in three locations, then overlap the adjoining piece. “That was the piece nobody else seemed to be able to make,” the client said. Then, when the client realized the pieces would flatten during shipping, EJ Ajax devised customized shipping containers that protected the formed pieces without adding significant cost. “Ajax provided the solution by the end of the day,” he said.

Product DescriptionRetractable Roof Seal Components
Capabilities Applied/ProcessesEngineering Design; Prototyping; Custom Tooling; Compound Bending; Protective Shipping Components
Tightest Tolerance.020
Material Thickness.179 inch (7 GA); .164 inch (8 GA); .134 inch (10 GA)
Material UsedGrade 50 HRPO steel
Material FinishUnfinished
Industry for UseArchitectural sheet metal stamping and forming
VolumeShort run
Lead Time3 weeks
Delivery LocationMiami FL
Standards MetLEED
Project ScopeManufacturing design and build large components for weather seal on retractable roof
Design WorkDesigned manufacturing offset to create weather-tight seal of components