Comparision of FEM, HMI and CMAA Classifications

Hoist Classification			Corresponding crane class		Typical application
FEM	HMI	ISO	CMAA	DIN 15018 and sim.	Example
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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