Crane Classifications
The Crane Manufacturers Association of America (CMAA) has established six service classes to enable the purchaser to specify the most economical class of crane for a particular installation. It is uneconomical to either under specify or over specify when choosing a service class. Specifying a crane with too light a service class will reduce cost but may result in excessive maintenance. A crane with too high a service class may decrease maintenance costs but at an excessive initial investment.
Class A – Infrequent Service |
Class D – Heavy Service |
Class B – Light Service |
Class E – Severe Service |
Class C – Moderate Service |
Class F – Mill Duty |
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