The CMAA Crane Service Classes are as follows: CLASS A (STANDBY OR INFREQUENT SERVICE). This service class covers cranes which may be used in installations
Class D. Heavy Service. This service covers cranes which may be used in heavy machine shops, foundries, fabricating plants, steel warehouses, container yards,
Class D (Heavy Service):. In this type of service, loads approaching 50 percent of the rated capacity will be handled constantly during the work period. High
Mike has been in the industry for 20 years and with MMI since 2009. He oversees field services for millwright work and industrial construction, from Rigging to