CMAA 74 2015

Specification for top running and under running single girder electric overhead cranes utilizing an under running trolley hoist.

CMAA 74-2015 is a technical industry specification covering the design, construction, installation, and interpretation of top running and under running single girder electric overhead cranes with under running trolley hoists. It provides guidance on crane classifications, structural design, mechanical equipment, electrical equipment, clearances, loads, safety considerations, and related terminology. The document is intended to support manufacturers, engineers, owners, and users involved in specifying and evaluating crane systems for industrial applications.

Application Scope: Suitable for procurement, design review, manufacturing, installation, inspection, and operation of single girder electric overhead crane systems and related hoist applications.