From Class A to E: 6 Overhead Crane Classes for Selecting Your Crane

Overhead crane is a kind of high-efficiency and cost-efficient lifting equipment in mordern society. You can see the application of overhead crane in almost any industry. There is a wide variety of overhead lifting equipment to fit any use, so here is qiestion for someone who know little about bridge crane-- how to select the right equipmnt for your particular application? Since crane choice is so important for workers’ safety as well as maintenance and inspection requirements, the Crane Manufacturers’ Association of America (CMAA) has established crane service classifications to make it easier to choose.

Crane & Hoist Classifications for Helping You Select Right Crane

Class A – Infrequent or Standby
These cranes are best for precise handling at slow speeds. They are good choices for powerhouses, public utilities, turbine rooms, motor rooms, and transformer stations.

Class B – Light Service

This class is ideal for environments with light service requirements and low speed needs. They can handle two to five lifts per hour, and work well for repair shops ( like garage overhead crane), light assembly operations, service buildings, and light warehousing.

Class C – Moderate Service

These cranes are built for use in machine shops, papermill machine rooms, and other such environments with moderate service requirements. They can handle loads that average 50% of the rated capacity, making five to ten lifts per hour, with not over 50% of the lifts at rated capacity.

Class D – Heavy Service

These cranes may be used in heavy machine shops, foundries, fabricating plants, steel warehouses, container yards, lumber mills, metallurgic plant (ladle overhead crane for sale) etc., and standard duty bucket and magnet operations where heavy-duty production is required. In 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

These cranes are 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 twenty of more lifts per hour at or near the rated capacity.

Class F – Continuous Severe Service

These cranes must be 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 of maintenance features.

Conclusion 

After reading above overhead crane classification, you must have your own understanding about what class crane best suites your particular manufacturing needs and environment. There are also some suggestion on how to pick your oveehead crane out, click to know more:  how to customize Yuantai overhead crane?