CMAA on American Crane & Equipment Corp.

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Crane and Hoist Equipment and Components by Type > Resource Center > Crane Glossary > CMAA


	CMAA
	Crane Manufacturers Association of America, Inc. (formerly EOCI—Electric Overhead Crane Institute).

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		CMAA Crane Buyer's Guide These guides help to determine your requirements for selecting the proper crane: Single Girder (PDF) \| Multiple Girder (PDF) \| Below Hook (PDF) CMAA has organized this Buyer's Guide to ...




		Crane and Hoist Classifications CMAA SERVICE CLASS C AND D Within the crane industry, there has been considerable confusion as to the definitions of CMAA C and D services, as well as HMI ratings of H3 and H4. In the past, Class C has been regarded as packaged hoist equipment, while Class D has been regarded as open deck machinery. As packaged hoist manufacturers increased the duty ratings of their hoists from H3 to H4, packaged hoists then began to be used for Class D service. In some cases, this has resulted in premature failures of Class D packaged hoists when operating in a Class D rating. Crane Manufacturers Association Specification No. 70 defines Class C and D service as: Class C (Moderate ...




		CLASS A (STANDBY OR INFREQUENT SERVICE) This service class covers cranes which may be used in installations such as powerhouses, public utilities, turbine rooms, motor rooms and transformer stations where precise handling of equipment at slow speeds with long, idle periods between lifts is required. Capacity loads may be handled for initial installation of equipment and for infrequent maintenance.




		CLASS B (LIGHT SERVICE) This service covers cranes which may be used in repair shops, light assembly operations, service buildings, light warehousing, where service requirements are light and the speed is low. Loads may vary from no load to occasional full rated loads with 2 to 5 lifts per hour, averaging 10 feet per lift.




		CLASS C (MODERATE SERVICE) This service covers cranes which may be used in machine shops or paper mill machine rooms, etc., where service requirements are moderate. In this type of service the crane will handle loads which average 50 percent of the capacity with 5 to 10 lifts per hour, averaging 15 feet, not over 50 percent of the lift at rated capacity.




		CLASS D (HEAVY SERVICE) This service covers cranes which may be used in heavy machine shops, foundries, fabricating plants, steel warehouses, container yards, lumber mills, etc., and standard duty bucket and magnet operations where heavy duty production is required. In this type of service, loads approaching 50 percent of the rated capacity will be handled constantly during the working period. High speeds are desirable for this type of service with 10 to 20 lifts per hour averaging 15 feet, not over 65 percent of the lifts at rated capacity.




		CLASS E (SEVERE SERVICE) This type of service requires a crane capable of handling loads approaching a rated capacity throughout its life. Applications may include magnet, bucket, magnet/bucket combination cranes for scrap yards, cement mills, lumber mills, fertilizer plants, container handling, etc., with 20 or more lifts per hour at or near the rated capacity.




		CLASS F (CONTINUOUS SEVERE SERVICE) This type of service requires a crane capable of handling loads approaching rated capacity continuously under severe service conditions throughout its life. Applications may include custom designed specialty cranes essential to performing the critical work tasks affecting the total production facility. These cranes must provide the highest reliability with special attention to ease maintenance features.




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		American Crane Services American Crane and Equipment Corporation (ACECO) can support all your field service needs. We provide installation, site services, outage services, and parts as well as upgrades and rebuilds. Our highly skilled field technicians and engineering support teams provide you with quality workmanship and extensive experience. With our first rate manufacturing facility, we are able to quickly produce and refurbish cranes, hoists, spare parts and components. Contact the service department at 1-877-503-2972 or via email at sale@americancrane.com




		Industrial Cranes From complex custom equipment to standard equipment, components and parts, American Crane can meet all your material handling needs. American Crane is recognized as a leader in the design and manufacture of electric overhead traveling cranes and wire rope hoists, offering equipment for a wide variety of applications up to 1000 ton capacity as well as distributing smaller cranes from other manufacturers. We can manufacture your new crane or rebuild an existing crane. Let us find the solution that works for your situation. American Crane can provide pre-engineered industrial cranes and a full line of custom cranes to meet each customer's specific application. For support for your specific application please consult the CMAA Buyer Guide and/or contact an American Crane sales representative.




		Industrial Hoists From complex custom equipment to standard equipment, components and parts, American Crane can meet all your material handling needs. American Crane is recognized as a leader in the design and manufacture of electric overhead traveling cranes and wire rope hoists, offering equipment for a wide variety of applications up to 1000 ton capacity as well as distributing smaller cranes from other manufacturers. We can manufacture your new crane or rebuild an existing crane. Let us find the solution that works for your situation. American Crane can provide pre-engineered industrial cranes and a full line of custom cranes to meet each customer's specific application. For support for your specific application please consult the CMAA Buyer Guide and/or contact an American Crane sales representative.




		Trolleys & Beam Clamps




		Below the Hook American Crane is recognized as a leader in the design and manufacture of electric overhead traveling cranes and wire rope hoists, offering equipment for a wide variety of applications up to 1000 ton capacity as well as distributing smaller cranes from other manufacturers. We can manufacture your new crane or rebuild an existing crane. Let us find the solution that works for your situation. American Crane can provide pre-engineered industrial cranes and a full line of custom cranes to meet each customer's specific application. For support for your specific application please consult the CMAA Buyer Guide and/or contact an American Crane sales representative.




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		CM Hoist Test Stand The Value - Priced, Hydraulic Hand Operated Test Stand — Tests Hoist Capacity to 12 Tons The Value-Priced CM Test Stand is specially designed for the testing of hoisting equipment as required by the applicable sections of ASME Code B30.16. Unlike other test stands on the market that weigh thousands of pounds, the CM Value-Priced Test Stand weighs only 496 pounds. Portability for on-site testing becomes more practical. Fewer wearing parts provide superior performance. • Hand operated hydraulic pump eliminates the need for electrical power. • Capable of applying test loads up to 12 tons. • Compact, self-contained design for portability and on-site testing. • ...




		Material Handling Components American Crane is recognized as a leader in the design and manufacture of electric overhead traveling cranes and wire rope hoists, offering equipment for a wide variety of applications up to 1000 ton capacity as well as distributing smaller cranes from other manufacturers. We can manufacture your new crane or rebuild an existing crane. Let us find the solution that works for your situation. American Crane can provide pre-engineered industrial cranes and a full line of custom cranes to meet each customer's specific application. For support for your specific application please consult the CMAA Buyer Guide and/or contact an American Crane sales representative.