Crane Buyer’s Guide Part 1: What is the CMAA?

The Crane Manufacturers Association of America (CMAA) has existed since 1955, but can trace its roots all the way back to 1927 when the Electric Overhead Crane Institute was founded to establish standardization and quality control within the crane industry. The voluntary organization is made up of over 30 Member Companies, which represent the industry leaders of overhead crane manufacturing. The CMAA is an affiliate of the Material Handling Industry of America and is committed to helping its members become marketplace leaders that provide high value and versatile solutions. Its mission is to provide the end-users, partners, and members of the crane industry with exceptional quality and value using:

  • Safety Advocacy
  • Engineering Specifications and Standards Development
  • Market Intelligence
  • Educational Materials
  • Member Professional Development
  • Recruiting and Developing a representative, active membership
  • Promotion and Enhancement of the CMAA brand

The CMAA has two very important specifications that help crane buyers, engineers, and architects select the optimal equipment for their needs. First published in the 1970’s, these are commonly known as Spec 70 and Spec 74 and have been updated as technology advances. Specification 70 outlines information for those interested in Multiple Girder Cranes, while Specification 74 focuses on Single Girder Cranes. Both specifications offer general information that can be checked with individual crane manufacturers to ensure you are purchasing the right product. The information in the CMAA specifications does not have the effect of law, but rather establishes advisory qualifications and technical guidelines. They can be helpful when researching proper clearances, offsets, tilts, runways, and more.

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