Industry Welcomes Updates to CMAA Overhead Crane Specifications

The leading authority on overhead lifting equipment, Crane Manufacturers Association of America (CMAA), has further enhanced its comprehensive Specifications Nos. 70 and 74, which are now available on its dedicated section of the Material Handling Industry (MHI) website.

CMAA is an independent incorporated trade association affiliated with MHI. Its specifications are widely acclaimed; purchasers and users of cranes in addition to engineering and architectural professionals have already lauded the revised versions.

CMAA Specification No. 70-2015 covers top running bridge and gantry type multiple girder electric overhead traveling (EOT) cranes, while 74-2015 covers top running and under running single girder EOT cranes utilizing under running trolley hoist. Both documents are divided into eight chapters, ranging from general specifications to electrical design and a glossary of terminology, but industry will note several changes and improvements from the 2010 versions.

Both specs contain nine new sections covering a variety of topics including lightning protection, below-the-hook devices, power circuit limit switches, weigh scale systems, collision avoidance and more.  They also have numerous revisions that reflect the latest technology used on today’s cranes. The easy-to-navigate contents gives users the ability to find tables, equations, and further information to support their knowledge.

Nowhere else can crane purchasing decision makers, users, engineers and architectural professionals get access to such comprehensive data compiled by leading authorities and manufacturers. Both specs cover nearly 100 pages and are available in paper copy or downloadable PDF format. CMAA Specification No. 70, Revised 2015 supersedes Specification No. 70, Revised 2010, as is the case with CMAA Specification No. 74.

 

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