Home / Crane Knowledge / Comparison of FEM, HMI and CMAA Classifications

Comparison of FEM, HMI, & CMAA Classifications
Class I - Locations
Hoist Classification Corresponding Crane Class Typical Application
FEM HMI ISO CMAA DIN 15018 and sim. DIN 15018 and sim.
1Cm H1 M2 Class A H1/B2 Maintenance crane in machine house. Used only occasionally.
1Bm H2 M3 Class B H1/B2 Light duty work shop crane, single shift operation, low average loads. Maximal load lifted occasionally.
1Am H3 M4 Class C H2/B3 Light/Medium duty work shop crane, single shift operation, medium average loads. Occasional lifting of max load.
2m H4 M5 Class D H2/B3 Medium/heavy duty work shop crane, 1 or 2 shift operation. Reular medium and heavy loads.
3m H4 M6 Class D H2/B3
or
H3/B4
Heavy duty crane, 2 shift operation. Nominal load regularly lifted Traverse or other dead loads below the hook.
4m H4
or
H5
M7 Class D
or
Class E
H3/B4
or
H4/H6
Very heavy duty crane, 2-3 shift operation, grab or magnet below the hook. Regular heavy loads.

 

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